thanks :up:Quote:
Originally Posted by zerazax
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thanks :up:Quote:
Originally Posted by zerazax
I stand corrected, but this only applies to Crossfire scaling.Quote:
Originally Posted by zerazax
So it goes like this: If clockspeed(or amount of cards, processors, memory etc.) increases by 100%, performance can't increase by more than 100% UNLESS the internal efficiency of the chip increases aswell (In this case the additional cache increased the internal efficiency of crossfire, thus the +100% increase in performance).
Ah, so it was about R700 vs. 2x RV770XT? I thought he was talking about general 5% -> 15% improvement. :DQuote:
Originally Posted by G0ldBr1ck
My bad ;)
Thats how I took it, I think thats what he was saying
It does not only apply to multi-GPU solutions ;) If you increase the performance/size/speed of some part of the GPU (or other complex micro processor for that matter) you can get more than linear scaling. In most cases this is only theoretically, but it can happen.Quote:
Originally Posted by Calmatory
I guess you told him that?Quote:
Originally Posted by perkam
His behaviour has nothing to do in this thread due to that is what he want, derail and blame.
R700 unless someone contradict it will scale well, and most likely might not fix the microstuttering fully even if improved due to that being a sync issue with AFR and unless they have a linear dualcore working it will however improve the FPS a lot and then it also helps with the stuttering.
If ATI are serious with the multiGPU I guess they also spent resources to fix that issue, dosnt make sense otherwise.:confused:
If fixed or even nonexistent on R700, that card will sell like milk and honey.
Nvidia have serious problems this year.
Great comeback from ati.:clap:
x12515p in x mode in Vantage.
http://www.techpowerup.com/64351/Two...ntage.html:up:
edit:
Orgarticle;
http://www.tgdaily.com/content/view/38171/135/
Im realy glad to see AMD on top of the game for now, I have supported AMD for over a year now not because "I just like them better" but I hate to see them strugle as the only compatition to NV and intel. It would be a sad day for our Xstreme Hobbies if we lost a big player like AMD. Everyone would loose including the NV fanbois, so just be happy and know that this in time is only gonna make the prices of your precious NV cards go down. Its obvios that NV is going to have to follow siut in straying from Monolithic GPU's and Jump on the AMD bandwagon to lower production costs as well.
As far as that Vantage score of X12515 that is just amazing! The first Spider platform #1 you see in my sig clocked to 3.0ghz only scores x4840, yes I know it would be higher with a Intel CPU but that realy dont bother me.
EDIT: Just had another thought. If it happens to turn out that R700 does not use crossfire at all and is truely seen by system as one card, then 3 or 4 R700's could actualy be suported In crossfireX at least later down the road.........Just a thought but possable!!!
That last option will probably not come to fruition as there is only a single 'golden finger' at the upper left corner of the card.
True QFT. perhaps in later designs....I can dream you know. :rolleyes:
Any expected date for the 1GB versions?
My guess is 3rd week of July or something like that, that's around the time that AIBs will start to roll out their own versions and not purely reference design based cards. That's just a guess based on the fact that factory OCed 4850 cards are supposed to appear around that time, but I think it's also a pretty safe bet.
Quote:
Palit Released HD 4870 & 4850 Cards
http://resources.vr-zone.com//newspi...t_HD4870_2.jpg
http://resources.vr-zone.com//newspi...t_HD4850_2.JPG
Palit Microsystems, leading graphics card manufacturer, today excitingly announces the much anticipated Radeon™ HD 4800 series products, Palit Radeon™ HD 4870 and HD 4850, which deliver a cinematic gaming experience with unprecedented performance while intuitively conserving energy at idle.
Palit Radeon™ 4870 is equipped with 512MB/256 bit of GDDR5 memory operating at a blazingly fast 3600MHz and a stunning 750MHz core speed. Palit Radeon™ 4850, with 512MB/256bit of GDDR3 memory operates at 1986MHz and 625MHz core speed. Palit Radeon™ 4800 series products with enhanced anti-aliasing (AA) and anisotropic filtering create striking graphics with unparalleled realism, allowing users to max out the settings of the most demanding games. The latest ATI PowerPlay™ technology is a platform-independent, intelligent power management technology which helps to deliver the power needed to blaze through even the most intense games and to conserve the energy when the demand is low.
Redefine HD gaming and go beyond HD video with Palit Radeon™ HD 4800 series products now. Support for DirectX® 10.1 graphics and scaleable ATI CrossFireX™ technology along with further sophisticated new features within ATI Avivo™ HD technology, Palit Radeon™ HD 4800 series products not only allow gamers to play today and prepare for tomorrow, but also provide a truly responsive experience ensuring users can take advantage of the latest display technology.
http://www.vr-zone.com/articles/Pali...ards/5914.html
regards
How does an HD4850 at 700/1125 compare to an HD4870 in game performance? I'm really conflicted about which card I should buy.
I just ran the FurMark benchmark on my new 4850. Check result here. How is this possible? I get only 1590 points while other people with same card get over 5000!
got a couple of questions on the new 4800 cards.
All I hear is micro stutter on crossfire (I assume also sli Nvidia cards as well) happen on some systems, cards, or is this universal?
This game either does not support dual cards or the drivers do not support this game--NO SCALING so 2 cards are useless?
How true are these statements?
Do the X2 cards suffer from the same things as a pair of cards?
T3rm1,
You're running the bench with 4x MSAA...
Oh, ok. But without 4 MSAA it's not much better :(
Is it possible that my card is broken?
http://img27.picoodle.com/img/img27/...km_a620085.png
Stock HD4850 scores around 4000 at those settings so you're not too off. Certainly not 5000 anyways.
Hey I'm going to buy a 4870, but before I do, I would like to know when and if any manufacturers will be releasing OC'ed cards or cards bundled with say.... Crysis?
If nobody knows exactly, what time frame do the manufacturers usually ship bundled and OC'ed cards?
Thx for any help.
as I understand this,Quote:
Originally Posted by sparks
if u go to low on FPS, say 30fps, then you might notice it, if you got enough fps, 60fps+ then stuttering is unlikly to happen.
so unless you get bottlenecked or running to high resolution, it is fine.
If others are pushing 5000 then maybe you need to double check their CPU speeds. They may have 3.6Ghz Q6600s or crazy clocked E8400s. My Q6600 friends all run at 3.6Ghz.
@T3rm1: I would say CPU limited a bit? You hit 4114 o3marks... but at that rez I found cpu can limit a bit... If your OC was higher you'd probably make up the difference. A lot of the benchmarks were probably done on a penryn core at around 4ghz... or even your core at around 3.6ghz and up.
Not that it is horribly applicable but when i was running 3dmark 06 I was getting seemingly really low scores at standard settings... but then Bump it up to 1680 x 1050 at 4xmsaa and wow.. very little loss in performance... ( I have just an x2-4000 @ 3ghz so cpu is limiting) I bet if you run yours up at 1680 x 1050 or something and ask for others results to compare. Also are you using the latest hot fix drivers?
Does anyone know how much ram chips do asus hd 4850 1gb have? 16? I worrying about radiators for them all...
I need to know something about Crossfire.
I've heard that linking hd4870 & hd4850 together will reduce the performance of hd4870 to the hd4850 performance.
Is that true ?
Of course that's true. Would you expect the other way around? ;)
Moty,
Most likely it has eight infamous Qimonda 1Gbit chips.
Yes, I'm using the latest hotfix. Do you really think my CPU limits my graphic card. I think 3GHZ on a quad core is quite a lot. And this benchmark shouldnt be affected by CPU at all.Quote:
Originally Posted by darkskypoet
3GHz on a quad core is the same bottleneck as 3Ghz dual core. Speed counts, the quad core will help the cpu score, wont do much to help the graphics card.
Quote:
Most likely it has eight infamous Qimonda 1Gbit chips.
I didn't noticed that there's any good-overclockable chips in 512 mb version.
That's just 3dmark. In crysis, for example you are no enjoing only numbers....Quote:
wont do much to help the graphics card.
Quote:
Originally Posted by Unbornchild
so three hd4850 linked together will perform like (2*hd4870 + hd4850) in crossfire :confused:
YesQuote:
so three hd4850 linked together will perform like (2*hd4870 + hd4850) in crossfire
That's not completely right. I don't know how the load ballancing works with Crossfire, but it does not necessarily need to be 50/50, or 33/33/33 in this situation. You can actually get a performance improvement if one of the cards in a Crossfire config is clocked higher.Quote:
Originally Posted by Moty
This applies to AFR.
Well like the other person said.. 3ghz quad core, for most apps s like a 3ghz dual core, or on some a 3ghz single core.Quote:
Originally Posted by T3rm1
Eitherway, if you look at some of the 3Dmark ORB World records with OC'd 3870's, CPU is up around 5ghz... and the ones doing it still claim around that speed the 3870's are still scaling well with Clockspeed.
Back to Furmark tho... Here are my results with stock 4850 and a 3ghz A64 x2 (only a 4000+).
CPU does make a difference... That being said, crank the rez and eyecandy, and CPU makes less and less of a difference.
hey anyone know when the bundled cards will be rolling out?
I have the same motherboard and I still can't get GPU-Z to confirm that Xfire is enabled. CCC and my benches both are okay though. Not a big deal, but if anyone can tell me how to get GPU-Z to show the right setting, I would appreciate it.Quote:
Originally Posted by cstkl1
http://img399.imageshack.us/img399/4...e510rt7.th.jpg
Hey... Check this Review Out... 2 x 4870 + 1 x4850 is broken it seems... But 2 x 4870 and 2 x 4850 teach the GT280 a thing or two in most games...
But most noticeably... When CF works... (most games) it seems to completely get around the 512mb frame buffer limitation of a single card!!! Check in particular some of the 2560 x 1600 benchmarks, where a single card vomits, and the 2 x Crossfire package just keeps on slamming the frames back.
http://www.guru3d.com/article/radeon...ex-performance
Is this tread still open? I am now wanting to return to the ATI relm of cards since the X1900 on my ASUS P5WDG2-WS !975X. I also on a build budget abd beed to make it count for a balance of cost per performance.
Can I get some input on cards built by PowerColor, Gygabyte, ASUS and Apallo in the 512MB sizes under $150.00 (as of 02-19-09)? I hear complaints on drivers for Vista x64 from various builders. Is this common now for drivers to be spacific to card builder and not from AMD/ATI official site? Ie: the card and driver in question is the latest drivers from PowerColor.
I am currently running on an X38 and X48 Maximus Formula and Rampage Extreme and ready to move to the Rampage II Extreme on X58/ICH10R soon.
Once you guys chose the right chip version, what brand name builder do you choose and for what reasons?
What can one expect from builders like Powercolor, Apollo, Sparkle, Galaxy, Zotec, Palit and so on?
Of the big dogs, what names do you go with and for what features?
I haven't had an ATI new since the good 'ol days of "built by ATI" w/ the Radeon 9800 Pro
Quote:
Originally Posted by Moty
I habe a 512MB version that the core goes up to 850MHz and the mem goes to 4.2GHz. That is as high as Catalyst Control will let me put the RAM, ATI Tools doesnt work with the card since it is a custom PCB from Palit.
Lucky...Quote:
Originally Posted by EniGmA1987
For some reason I can only do ~820mhz core (though I can do 4.4ghz on the memory), no matter how many volts I put in (1.3v, 1.32v, 1.35, 1.4, 1.45), it still stays stubbornly unstable.
Wow, I didnt realize talking about your own card and brand was such hard thinking. I find it hard to believe nobody on this forum baught a 4850 or 4870 to speak of.
Oh well, I will just stick with tried aand true, the nVidia series. I guess I will choose stable and reliable over braggin" scores. lol:)
ok so i just installed two sapphire 512 hd4870's in crossfire yesterday. first 3dmark 06 run of right at 20k. i can not overclock them at all from stock settings or my computer freezes in 3dmark 06, not even a little oc on the core or memory..
HIS HD 4870 IceQ 4+ Turbo tested
Quote:
http://img527.imageshack.us/img527/8...asprijeda2.jpg
As far as memory is concerned, HIS HD 4870 IceQ 4+ is a beast. You’ll find
1GB of GDDR5 memory running at 1000MHz or 4000MHz effectively. These
cards initially packed 512MB, but 1GB versions came about as an answer to
Nvidia’s Geforce GTX 260 cards.
GDDR5 memory offers twice the bandwidth per pin at same clocks,
compared to GDDR3/4 memory. This means that 512-bit GDDR3 card
features the same bandwidth as 256-bit GDDR5 cards, provided they’re
both running at same clocks of course. While HD 4870 uses GDDR5
memory at 900MHz and has a 115.2GB/s bandwidth, Radeon HD 4850’s
GDDR3 memory at 993MHz will provide 63.6GB/s.
Now we’ll say something about HIS HD 4870 IceQ4+ Turbo’s overclocked
core, which runas at 770MHz compared to reference 750MHz. Although
IceQ 4+ packs some serious performance, HIS didn’t overclock the card by
much. After we finished our overclocking tests, it dawned on us as to
why this is so, as the maximum stable clock we achieved was 808MHz.
HIS was fair and didn’t go overboard with their overclocking. However,
even at 770MHz and the memory at 1000MHz (4000MHz effectively) this
card is capable of running all the latest games.
http://img145.imageshack.us/img145/1...lockedgpuz.jpg
http://img211.imageshack.us/img211/6900/3dmark06.jpg
http://img527.imageshack.us/img527/5707/memorija.th.jpg http://img527.imageshack.us/img527/8...rijeda2.th.jpg http://img403.imageshack.us/img403/1...adnjak2.th.jpg http://img527.imageshack.us/img527/3...akbakar.th.jpg
source: fudzilla
i got to play with mine a little more.. the memory will do 1000 on both cards no problem as long as i don't touch the core.. the 9.2 ccc drivers are working pretty sweet i have overclocking on both cards and fan controll..
OK, so it's clear I'm not gonna get any feedback on a HD4850. in terms of builds and brand names. Can I at least get some feedback on day to day reality of how unstable they really are in Vista x64? I hear two sides to these in general for the entire HD4xxx series. I am not interested in high clocks if it is not stable at simple 3d desktop or Photoshop work or just integrating w/ ACPI sleep and hibernate functions.
What kind of weirdness are you guys experiencing to shead some light on the subject for somebody sort of interested in an ATI Radeon HD4xxx series card to run on Vista x64?
Asus Top 4850 here and no probs, well I tried to use 8.12HF driver just yesterday and it gives code 39 error and driver wont load. Otherwise everything works fine on 9.1, 9.2 drivers. My card now has a new S1 rev 2 HS since it didnt come stock with VRM cooling. If I had to do it again I would jumped on the MSI 4850 that was onsale yesterday. Works fine in Vista 64
Overall it plays everything fine on 1680x1050 for me, source games I underclock to reference speeds(at lower voltage) and run my quad on EIST/C1E settings of 6x400 and still get average of 60+FPS.
Also I use latest beta of ATT(ati tray tool) in vista 64, right click and install as admin to bypass the unsigned driver issue.
I nocked off 15w on idle power consumption by reducing clocks to 360/600, the mem is what saves power and my card only goes as low as 600 on mem, otherwise I get artifacts at desktop.
the 4870x2 can beat a gtx 295? i just looked at the benchmark scores in the previous post
I think the GTX 295 beats the 4870X2 in like 60-70% of the games, and the 4870X2 is better in the rest of them...Quote:
Originally Posted by ILikeCosmosS
the 4870x2 wins is a lot of games and resolutions. the 295 wins in a lot of games and resolutions. you guys the card for the games you play and the things you use it for.
If you fold and play COD:WAW and GTA4 and then you buy the 295.
If you watch lots of HD video and play L4D AND FC then you buy a 4870x2
ok folks i edited my bios,i will flash it with atiflash but firsty i want to see have i set all parameters good??
i cahnged stock 1.26v to 1.35v so i can now set 830 for core.
especially look at fan setting and did i set good clocks(i dont want to have 500/500 at load).
Hi to all.
I've ghot a 4850 sapphire toxic 512Mb.
There is a way to use temp driven fan speed?
I see in rbe a checkbox to turn on but I red about that this card hasn't the electrical part to do this..the fan is only 2 wire...