yes i understand
Printable View
yes i understand
next cpu test in FC3
http://i288.photobucket.com/albums/l...c3testcpus.png
1280x1024 = really CPU test...difference in practice gaming is lower after this.
I can live with a few games having a bottleneck with FX83xx,it's not a big deal. Who just games with highest end GPUs and needs absolute maximum will buy intel of course. I don't so I don't care about that ;). Oh and when I DO game I don't play at low resolution with low image quality ;).
Informal. Look at my second chip :D. Beast.
http://www.overclock.net/content/type/61/id/1163108/
http://www.overclock.net/content/type/61/id/1163109/
http://valid.canardpc.com/show_oc.php?id=2607102
Great sample Flanker :). Is that water cooling setup?
yes, but only AMD watter setup, not custom, so "lowend" for validation I think the same as with good aircooling
Holy mother of...
Are we going to see these chips hitting 6Ghz in their lifecycle?
AMD FX-8350, FX-8320, FX-6300 and FX-4300: All Vishera Processors in One Review - XbitLabs
http://tof.canardpc.com/view/29cd09b...5fb79eea48.jpg
Quote:
That said, the appeal of AMD processors with Vishera design is not really in the advantages of the Piledriver microarchitecture, but in their low prices. In this respect, the two models in the middle of the line-up, FX-8320 and FX-6300, look best of all. These are the processors we would recommend checking out, if you are not discouraged by higher power bills. And please keep in mind that AMD processors perform best in multi-threaded tasks, but they are not as universal as Intel products. Therefore, Socket AM3+ platform probably won?t be a good choice for everyday use, and will best fit into an inexpensive workstation system.
w00h00 Flank3r nice chip^^
I think, this chip maybe with 1.65V can hit 5800 with this cooling :D
What cooler?
flanker, crazy cpu! what week and default volt?
what he said^^^^ :)
show us pics of yur bench setup
^^^^ What they said.... :D
Sweet Chip Flank3r!
Is it a newer sample (week/batch code)?
Have you done any stability testing with it, and if so, what are best daily clocks?
My 8350 is pretty average (~4.8), if the newer weeks are showing serious improvements I might get another one (like I need another CPU :zombie:)...
i hope the newer batches are getting better, im still sitting on my 8120, and itching for a 8350
maybe they will make a FX-8370 revision or a TWKR version ;) jk
How looking PC station for 5711 MHz with 1.565V at CPU? Nothing special!
C5F-Z
FX-8350 1229PGN (again the same batch)
cooling AMD liquid cooler (so similar as Corsair H70 or H80!)
ambient temperatures around +20-21C
http://i.imgur.com/d4kRx.jpg
Yesterday me with friend frozed my first Vishera chip (validation "only" 5510 MHz with 1.575V) with LN2...Looks not bad :)... Playing Quake III more than one hour with 6 GHz for people and max. Czech clock was finally broked :)
http://i.imgur.com/N8Ihl.jpg
Hehe playing games on 6Ghz Vishera for an hour :D. You are crazy Flanker! Good work and great CPU :).
btw. look in to my thread ,-)....
So that antec/Amd cooler (kuhler 920) got you 5.7 ghz!!!???
yes,exactly, I had 5735 MHz, but validation is wrong...
Yep, I've got a giant itch to pick up one of these now.
As soon as I sell my Sandy Bridge stuff...then I'll play with this a little and sell it for some Ivy >_<
First Mem Test with my Corsairs Platinum 2800 :
http://img854.imageshack.us/img854/8...mem260032m.jpg
I need to pick from the 1229PGN batch ;)
someone should start a batch thread for vishera cpus.... wasn't there one for bulldozer/zambezi?
was...Beep created last year this thread
so what are the best batches so far?
what week are we up to now?
from my point of view 1229, 1237, 1242/43. But of course batch =//= 100% sure about quality of chip. Only in 1229 (example) you can find more good pieces than in 1232 batch.
http://ewh.ieee.org/r5/denver/sscs/P...2_05_Sathe.pdf
Resonant Clock Design at Piledriver core info
Resonant mesh must be for updated PD, right? Maybe we'll see it in 2013?
http://img837.imageshack.us/img837/9...3508gspi1m.jpg
1.325V required for 4.5G Prime95 LargeFFT stability on AMD FX watercooling (40% fan DC).
:D
you kidding me Stilt?:D Where did you found this chip? Only 1.85V!!!!!!!!!!!!OMG. Can you try PiFast? In PIFast is Vishera "strong". And wprime maybe too. This is your "Cinebench R11.5" chip?
What's batch number?
The batch is 1244PGN.
The chip seems to be able to handle some serious under voltage so I did some extended testing.
At the default base frequency (4.0GHz) the chip is Prime95 stable with just 1.1875V ;)
Crosshair V Formula-Z (LLC matched to leakage = Ultra High, OCP 100%, Phase Control = Standard, VRM Fsw 300kHz, VRM DC = T.Probe, VRM Response = Regular)
VRM input current = clamp on a EPS12V
VRM input voltage = Fluke DMM
VRM output current = CHIL DCR
VRM output voltage = Fluke DMM & CHIL Vsen
Workload: Pov-Ray 3.7 RC6 (all core benchmark).
http://img441.imageshack.us/img441/7...axvrminout.jpg
http://img23.imageshack.us/img23/636...axvrminout.jpg
The VRM efficiency peaks at 77.2% on Crosshair V Formula-Z, which is decent but not the best.
The VRM on CVF-Z is built to withstand some severe molesting. It can take anything you can throw at it, however this will hurt the efficiency a bit.
Lowering the core voltage from 1.3250V to 1.1875V decreased the power consumption by 42.8% (VRM Input) or 39.9% (VRM Output).
Now it fits into the 95W TDP envelope too :D
Since Prime95 is no considered as "normal use" (for CPU power measurement) I made separate tests with it.
Settings: Custom 512K - 512K (LargeFFT, In Place)
Core VDD: 1.3250V
VRM Input Current: 14.98A
VRM Input Voltage: 12.13V
VRM Input Power: 181.70W
VRM Output Current: 103A
VRM Output Current: 1.316V
VRM Output Power: 135.54W
Core VDD: 1.1875V
VRM Input Current: 10.52A
VRM Input Voltage: 12.13V
VRM Input Power: 127.60W
VRM Output Current: 77A
VRM Output Current: 1.184V
VRM Output Power: 91.16W
This is awesome. Imagine if Amd sold fx-8350 with 95w tdp they be in a little better shape.
Hey stilt what's max stable 24/7 for yur 8350 1244pgn chip on Amd fx watercooler? What r temps?
I want a 8350 24/7 stable @ at least 5ghz....just curious if Its worth it to get one if these all in one systems like a corsair h100 or a antec kuhler 920 would do the job... Assuming I get a good batch number. Maybe ill get lucky like u guys
Gonna pluck this into my Crosshair 5
Ain't gonna happen,at least 5 ghz daily requires a beastly cooling and i have serious doubts that h100 can handle that.
I have one 5000 MHz stable, but this chip, what i saw in others forum, is better than average 8350s...So if will be lucky, after you can hit 5 GHz stable (or very close to 5 GHz) with Antec or H80 etc.
I think, the chip of Stilt is more than good :). Maybe with 1.55V he culd get 5.1 GHz stable.
My 24/7 system is using a A10-5800K so I don?t really have 24/7 clocks for the FXs :D
Nowdays I'll always try to find the optimal balance between the efficiency and performance, not the absolute performance at all cost.
An example: FX-8350 requires 1.3750V for Prime95 stability at 4500MHz and 1.4400V at 4700MHz.
4500MHz
1.3750V
Estimated Pmax: 145.9W
vs.
4700MHz
1.4400V
Estimated Pmax: 167.1W
Difference in performance: 4.4%
Difference in power consumption: 14.5%
To maximize the balance of performance and efficiency I want the "golden ratio" to be =<2.0.
In the example above the power limit would be 158.7W, which means the chip must be able to do the 4.7GHz with 1.40V voltage.
In that case the increase in power consumption could be justified (difference in power 8.8%, difference in performance 4.4%).
Also keep in mind that a small 20W increase in CPU power consumption will increase the actual power consumption much more than that.
CPU VRM efficiency: 75% -> 26.7W
PSU efficiency: 90% -> 29.7W
I'll start to sound like a greenpeace rep now so better stop...
:D
I have not tried the maximum Prime95 stable frequency yet on this chip, however I recon it is not that good.
This is an ultra high leakage part so the heat will become a issue very quickly.
Achieving 24/7 stability at 5.0GHz+ is not matter of how good your chip is, let alone the batch code of the CPU.
Each and every single one Vishera CPU ever manufactured will reach 5.0GHz 24/7... with sufficient cooling.
The term sufficient varies. It is anything between 10C liquid to LN2.
Only one thing is certain: 24/7 stable 5.0GHz or higher cannot currently be done on normal air or watercooling.
Because of heat <=> power consumption (motherboard).
A rough estimate what the 24/7 stable 5.0GHz would require:
- 190W+ cooling capacity at <40C CPU die temperature
- 60W+ cooling capacity for CPU VRM
- 130A+ constant CPU VRM current capability
The highest 24/7 Prime95 stable frequency I have reached on 8-core Vishera is 4.9GHz.
Cooled with AMD FX watercooler, fans running at 100% DC (ear protection required) and in 21C ambient.
The CPU *might* have been a "airbender" special (with special seasoning) ;)
:ROTF:
:) That's what i tought too,having a 5 ghz 24/7 would require a chip that has veeery low leakage and can keep the temperatures and power comsumption in somewhat normal range.
Il can try it around New Year with AMD cooling setup...I believe, the 5700+ MHz chip can do this :)
So according to the reviews, the i7 3770 is still kicking butts compared to the fx-8350... still the 8350 is $100+ cheaper.
Not in all cases maybe 1 or 2 multitasking cases where 8350 beats the 3770k
http://techreport.com/review/23750/a...or-reviewed/10
http://www.anandtech.com/show/6396/t...x4300-tested/4
http://www.anandtech.com/show/6396/t...x4300-tested/3
But basically yes the 3770k handles the 8350
Hopefully this doesn't derail this thread I apologize in advance.
Thanks a lot The Stilt, your comments are always very interesting :up:
That Vcore has got to be wrong, if not then lucky man.
http://valid.canardpc.com/2625134
http://www.overclock.net/t/1318995/o...ners-club/6060
measurements of programs are wrong. I have two matherboards Gigabyte 970 and MSI 990fxa GD80 and two different readings of vCore on the same CPU. I checked Gigabyte motherbord and 1.4V is real 1.3V.
Since the first FX measurements are great unknown and dependent of motherboard and bios.This is the same with temperature.
check coretemp is should say what your specific chips VID is...
Santa played cheapskate this year and brought me some FX-4300s instead of those FX-8350s Ive asked :confused:
http://img12.imageshack.us/img12/398...49gp95lfft.png
The actual VDD is 1.489V.
AMD FX watercooler with Enermax Magma 120mm (18dB) intake & Scythe S-Flex 120mm (20.1dB) exhaust fans for reduced noise levels.
25?C ambient.
Prime95 LargeFFT
DCR Imax: 91.0A & DCR Vsen 1.482V == 134.86W (Pmax)
X264 R2230 10-bit RAW BD 1080p -> mkv (preset = slow, tune = film, bitrate = 9000, output = .mkv)
DCR Imax: 72.25A & DCR Vsen 1.482V == 107.1W (Pmax)
Very nice chip Stilt. It's surprising(to me) that it draws "only" 107W in real world threaded workload at that clock and voltage. At 4.9Ghz this thing is everything but slow,even with it's "lowly" 2 modules :).
AMD FX-8300 95w
same C0 stepping
3.3 ghz base clock
4.2 ghz turbo
http://techreport.com/news/24111/rum...ater-this-week
http://www.cpu-world.com/CPUs/Bulldo...20FX-8300.html
i wonder if these r cherry picked low leakage parts?
probably not but we can hope
FX-8300 should be exactly the same 'bin' as FX-8350 ;)
Vishera can operate at very low voltage after even a minor drop in frequency.
I recon the FX-8300s have 1.225V - 1.275V VID fuse for the base frequency, depending on leakage.
FX-8350s usually have 1.325V - 1.375V.
so most FX-8350 could be downvolted and fit under the 95w power envelop (at stock 8350 clock settings)??
so like ~1.2v could probably get u 95w at 4ghz?
Most of them if not all.
To fit in 95W TDP slot a FX-8350 requires around 0.1V undervoltage (vs. PS0 Fuse VID).
The PS0 Fuse VID already contains a hefty margin as the loadline specification allows massive undervoltage.
The allowed amount of undervoltage depends on the leakage as the loadline slope is in relation to current draw.
With a high leaking part I have seen up to 60mV undervoltage with the default slope.
On average with FX-8xx0 -series CPU:
At 3500-4000MHz - 100MHz increase or decrease in frequency (with the same voltage) is worth of 2W in Pmax.
At 4100-4600MHz - 100MHz increase or decrease in frequency (with the same voltage) is worth of 2.5W in Pmax
At 4700-5000MHz - 100MHz increase or decrease in frequency (with the same voltage) is worth of 3W in Pmax
The leakage is thermally induced so it increases (or decreases) along with the temperature.
Had about an hour or two fun with Piledriver for Country Cup. Just boot 'n' bench, nothing special :)
http://img.hwbot.org/u5323/image_id_886778.png
http://img.hwbot.org/u5323/image_id_886774.jpeg
These numbers are recorded with the same chip I posted the previous charts with.
FX-8350
Node TDP = 125W (in real world applications, TDP will be exceeded in Prime95 or similar software. On both AMD and Intel).
Base TDP = 6.75W (Core Northbridge + Logics).
Core TDP = 118.25W (Node TDP - Base TDP).
Target Node TDP = 77W
Target Base TDP = 6.75W
Target Core TDP = 70.25W
At stock frequency (4.0GHz) and with the rated (1.3250V) voltage, this chip exceed the rated Core TDP by 15.5% in Prime95 LargeFFT (136.66W DCR Pmax). Therefore the Target Core TDP with this margin included is 81.1W (70.25*1.155).
Result: 3600MHz / 1.1250V
DCR Pmax: 79.6W (72A @ 1.105V)
Total Node TDP: 86.3W
In a real world application (tested with Pov-Ray 3.7 RC6), at stock frequency (4.0GHz) and with the rated (1.3250V) voltage the actual DCR Pmax was 1.57% below the rated Core TDP value of 118.25W (= 116.42W). The Target Core TDP with this margin included is 69.2W (70.25/1.0157).
Result: 3500MHz / 1.0875V
DCR Pmax: 66.2W (61A @ 1.085V)
Total Node TDP: 72.95W
The underclocked frequencies are Prime95 LFFT stable for 20 minutes or more.
ps. At 3.3GHz / 1.05V the Node TDP was 63.8W ;)
Anyone seen a FX doing 5.1GHz Prime95 LargeFFT with aircooling and with 4 or more cores enabled?
I have :)
Also had one with high htt and high mem:
http://hwbot.org/blog/wp-content//11406-2.png
Quite an FX-4300 this would be...
The CU0/CU1 are superior to anything else Ive seen in the past.
CU2/CU3 are nothing special after 4.7GHz mark.
http://img822.imageshack.us/img822/2694/p95lfft49g.png
http://img204.imageshack.us/img204/2831/p95lfft51g.png
Thermalright UEX 120 + a single Everflow 1225SU (from AMD FX watercooler).
So why isn't Amd making a 77w fx-8300 part?
im sure people would buy an 8 core 77w FX chip with slower clock speeds
i guess thats what opterons for
Massman: test PiFast, in superpi is Vishera lazy :D....
Stilt: do you think, next year we will see higher models than FX-8350? Or some new revision C1/C2?
I had about 17.41s in PiFast, but the memory was not optimised much. Next week, I will re-try (also 32M). I improved my max 1M speed by about 60MHz using PSCheck. I'm quite confident I can do a 8GHz 1M run, but I need to do some tricks to make sure the efficiency is alright :).
More next week. I'll do a write-up with tips if I get 8GHz stable :)
http://img.hwbot.org/u5323/image_id_888299.png
link: http://hwbot.org/submission/2340068_...50_11sec_281ms
Not sure about a "major" stepping change however I would imagine the node is changing quite frequently, as usual.
IMO currently the biggest issue with Vishera is inequality between the compute units (CU2/3), just like it was on Bulldozer.
On average it is limiting the maximum frequency on FX-8xx0 series CPUs by 200MHz.
Ultimately heat will limit the maximum frequency of course.
A high leakage CPU with with completely equal CUs (0-3) would make a stable 5GHz on a proper motherboard and the very best air cooling.
These chips are more rare than the ones which can do 8.5G on LN2.
Good to see high ram clocks are possible on Vishera looks on par with Ivy. How come everybody is running such conservative ram speeds om AMD set ups here?
I would love to give my Sammy based Trident-X rams a run for their money on an AMD setup but i haven't got one (yet? :))
Vishera looks better for LN2 OC too. Looks easy to get 8 GHz than Zambezi Bulldozer. I hope, someone will broke record of FX-8150 with new Vishera chips in freqency...I wish really some very great low VID chip for it :)
No idea why everyone is being so conservative. I've not had the slightest issue pushing the memory over DDR3-2600 and performance is pretty okay too ... if you use high HTT frequency (same issue on Bulldozer). I'm going to do a couple of 32M runs next week - seeing how high I can go with mem/nb - and probably a pifast too. Piledriver is a lot of fun :).
By the way, since the key to both Bulldozer and Piledriver performance seems to be memory divider (see: http://hwbot.org/forum/showpost.php?...7&postcount=37), I think I need a different board. UD7 is limited to ~340MHz HTT (tested different samples of motherboards and CPUs), but it seems the UD3 might be pulling a little better (300+ on air compared to 275 max of UD7). Hope to get my hands on a UD3 next week :).
Not sure if it's a lot easier - tested a total of 3 CPUs so far and the two others did around 7.8GHz boot into OS whereas this one goes to boot around 7.91MHz easily. A lot better than some Bulldozer CPUs, though :D
I had no luck with Bulldozers...the best one was 8320 and hit about 7700 MHz, but OBR kill my chip with high voltage after :D...ANd others 8350s/8320s had only limit around 7200-7400 MHz...
Vishera? My first Vishera easy 8 GHz, others looking similar (others I compared only with AMD liquid cooling)
This is what gets me about AMD.
Everyone complains about how power hungry they are. Well I have my 1090t sitting at 800mhz with CnQ on with 0.8 volts going through it. I could probably go lower but just aint tried.
Why does it lag so much in SuperPi compared to the i7? 14 minutes more to complete the 32m calculation?
^^It's all about older instruction sets legacy. Bulldozer was awfull at SuperPi but Piledriver is even worse! Apart from that performance isn't that bad at all.
Exactly, everyone has been duped by Intel with their so-called "low-power usage" with all of their product range. And they really do sell heaps of their product to everyone, everywhere. Yet AMD has been painted as the old-style villain unable to compete with Intel at all. That still burns me up........
Yet all of AMD cpu's are able to coast at 800mhz when idle. I still have a 910E that still sits on 800mhz when ever it's bored. Hence for me I really still like AMD, their video cards and their cpu's.
Just evaluating which cpu to drop into my now ancient 990FXA-UD7 board. Want to use it as a 24/7 server base.
Another review,a bit shocking :D . It's hands on review of 8350 in gaming AND streaming while gaming(versus 3570K,3770K and 3820). Surprising results for Piledriver ;).
http://www.youtube.com/watch?feature...=eu8Sekdb-IE#!
Why? Because it was not done by "pro" websites like AT or TR? What are your objections exactly?
The funny thing is that FX8350 excels with non-top of the range card like 7870 which should (if theory behind "bottlenecking GPUs" is correct) perform the same on all 4 tested CPUs. We see that's not the case since in numerous games and in situation with game streaming(more CPU and GPU taxing) 8350 is much better than 3570K and even more expensive parts. The guy who did the benchmarks performed the tests numerous times to rule out some sort of freak anomaly. Notice how 3820 and 3770K perform similarly with that card although they are 2 different platforms(but have similar CPU specs: one has slightly more IPC while the other has more cache -cancelled out effectively).
This "review" is complete non-sense. Results between Intel processors are illogical and I don't talk about FX gaming ones.
Review only used a 7870, kind pushing the gpu at resolutions at 1080P/1440P.
Interesting review I like the game streaming tests never seen that before.
Love the game song at the end ;)
I'm not gonna argue either way both r good processors different strokes for different folks I guess
The fact that people r still reviewing and comparing these 2 processors shows that their is something there to be talked about
I dont think its complete nonsense. It shows:
1. Games dont use more than four cores.
2. If you stream, u get more performance from more cores.
3. Intel is better option if you game and not stream.
4. FX is in many cases better if your tasks are capable of utilizing many cores, intel if your tasks dont utilize many cores.
I dont think there is really anything new in here, its just showing the obvious.
Very interesting review.
Would love to see some similar tests done with prof. apps.
Particularly on the video and image processing/editing end of things.
click: http://www.youtube.com/watch?feature...ONgFEUo8#t=77s
This guy doesn't even know what dual channel is. You can't honestly expect him to conduct a balanced review. I came across this particular youtube channel before, subscribed for a bit, but soon realized that his presentation is more style than substance. For one thing, no comparison graphs?
There is review from PCtuning, all modern CPUs in games with game resolution:
http://pctuning.tyden.cz/hardware/gr...omu-po-core-i7
Very interesting review. This time we have GTX670,a second fastest single GPU card on the market (after 680/7970GE) and results are pretty close yet again. 3770K is just 7% on average faster than 8350 in minimum fps department(across 15 games) and ~equal to 8350 in avg fps metric. Looks like 670GTX is still not fast enough to bring out any significant weaknesses of BD/PD based cores in gaming. Heck even old X6 @ stock is not that bad(although in few titles it produces lower results than the FX or intel parts). Sure there are few games that are just running better on i5/i7 hardware than on any AMD chip so who plays those games exclusively has one clear choice to make.
I still can't believe what I see
for example
Far Cry 3 look and tell me what is there wrong.I fell off my chair
760 vs i5 3550 or i7 3770K. i5 760 is the fastest:rofl:
Arma II is a big mistake, anyone played this game from pct.
ACIII level Boston good place to test CPU not GPU.
I seached "Extreme system Superkames FX 8350" afew munites before, anh the google lead me to this topic , page 7. :D
Some of you still confuse about my results before?
I don't know what happened to maxforce's 3dsmax +Vray results, but I tested so many time before and I'm so sure that at the same speed the FX83xx faster than any I7 quadcores CPU Ivy/Sandy Bridge. And the review of behardware also have the similar result.
3dsmax 2012/2013 with Vray 2 is not much different.
My review as the same system:
AMD FX8320 vs Xeon E3-1230V2 (similar to a I7 3770 , 100mhz slower , E3-1230V2 @all core fulload ~ 3.5ghz ~ AMD FX8320 with my mainboard )Quote:
AMD:
CPU :AMD FX 8320
Mainboard:Gigabyte GA-990XA-UD3
Intel:
CPU :Xeon E3 1230V2
Mainboard:MSI Z77A-G45
Other hardware :
Ram Gskill Jipsjaw-X 1333 cas7
HDD Western Digital Black 1TB Sata3
VGA MSI R6950 Twin Frozr III PE/OC unlocked 2GB
PSU Seasonic X650
Cooler Prolimatech Megahalems Rev.B + 2 fan Cooler Master
Moniter Dell 2209WA (1680*1050)
OS Win7 64bit Ultimate SP1
VGA Driver 8.982.0.0 (Catalyst 12.8)
http://vozforums.com/showthread.php?...357&highlight=
Some more result with I7 3770K@ 4.5ghz , the same file, sameOS/3dsmax version/renderer :
http://farm9.staticflickr.com/8200/8...a3d4dd0a_b.jpg
http://farm9.staticflickr.com/8205/8...147120ac_b.jpg
I7 3930K:
http://nu3.upanh.com/b5.s34.d4/1ecad...683.3dsmax.jpg
@maxforce: Can you show me the Vray setting? Or how many passes did you set in the Light cache menu?
Yesterday I released my second Vishera-Review (in german): click!
It's nothing special but I thought it's worth to share. :)
I tried boards with old agesa-code, I compared power draw with air- and watercooling, tested performance with different memory-clocks and -timings, tested performance with higher referenceclock, did a comparison between even and uneven multiplier and tweaked turbo core for better performance.
Crysis 3 (beta) and FX AMD looks very good in practice. Now is core i3 Ivy Bridge totally destroyed....
http://pctuning.tyden.cz/multimedia/...naroku?start=6
http://pctuning.tyden.cz/ilustrace3/...cpu_medium.png
I love seeing charts like these
look at FX-4300 :)...And still, this is not classic quadcore only 2CU with 4c.
zeus, nice to see you back :)
fx4300 looks good :p