The official answer from eVGA is that all 7900 GTO models come with 1.2ns GDDR3 right now. MSI is currently the only manufacturer using 1.1ns memory that I'm aware of.Quote:
Originally Posted by douirc
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The official answer from eVGA is that all 7900 GTO models come with 1.2ns GDDR3 right now. MSI is currently the only manufacturer using 1.1ns memory that I'm aware of.Quote:
Originally Posted by douirc
Where did you see that answer?Quote:
Originally Posted by Serra
I see an EVGA guy saying it is 1.1! That admin edited his post, because I saw it when it said 1.2, and someone captured that in a quote further down the page.
http://www.evga.com/community/messag...s+Family+Forum
EVGATECH_JacobF
Administrator
1071 Posts
Posted - 09/28/2006 : 10:06:59 AM
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The 7900GTO uses 1.1ns Samsung memory.
The official specs for the EVGA 7900GTO show the card having 1.2ns RAM. Just get the PDF for both cards and look. It is the same as for the 7900GTX. the only difference is the RAM speed which will allow for the increased bandwidth on the GTX.
Nice. A slight bump in memory clocks = 7900 GTX SLi for 500usd.
I just got my evga 7900gto today from newegg and it has 1.1ns ram.
Is the 7900GTX Bios better then the original 7900GTO Bios?
How do I del the "Delta" with Nibitor, and with advantages has this?
Are the 720/850 only with the Mod Bios from the 7900GTX possible, with the delet Delta?
ciao
Currently at 710/815. Anything higher on either end and get error message on Riva.
Haven't done anything to the two cards yet. Stock cooling, no bios changes. OC at auto-detect. Using Big_Sam's 85.96 drivers for SLI on 975.
http://img131.imageshack.us/img131/7...9712770er8.png
Maybe someone can start an "official thread" on GTO results and list the results at the top? :stick: I'd do it myself but ... I don't think I could keep up with once the flood of cards hit the members. At $250 these seem like a pretty good deal for a game rig.
Quote:
Originally Posted by KaiserSoze
I tried the GTX timings, but it seemed to make little difference. I have two cards to test, and both would gain only 10 to 15 MHz with the GTX timings. The item I really suspect is the effective voltage to the memory. I have seen a few results, but they seem to vary from 1.81 to 1.89V. So, if you are low or high of the target 1.85, you may see different results.
If you are editing the BIOS, the other item to consider is the delta which is currently set at 50. Of course, each card has a different potential peak core clock. The stock BIOS has the delta enabled which makes the ROP/Shader cores "jump" 27 MHz at a time as you increase the root clock (using coolbits or the like) on GTX based cards. So, as you hit the limits, jumping even 1 Mhz will push the ROP/Shader up too far. That is why some contend that no delta is better. But, the gains of getting your ROP/Shader up a tad are mitigated by the vertex core being lower and not pumping enough primitives against ROP/Shader cores.
I have tested a delta versus a no delta BIOS, and the core clock on the cards I have tested (7800GTX, 7800 GTX 512, 7900 GTX, 7900 GTX SC, 7900 GTO) never went any higher with or without the delta in place. So, using one of the GTO cards I am testing as an example, a 725 core clock was the highest functional clock whether the delta existed or not.
So, some numbers:
3DMark06 with delta - 6415, without - 6331
3DMark05 with delta - 11436, without - 11221
715/716 is a border. At 715, your ROP/Shader is at 702. At 716, it bumps to 729. A 27 MHz bump. So, the 650 (648 to be specific) stock clock is chosen for a reason. Following that, 675 is the next step.The border to this ROP/Shader is only 662. Next up, 702 which kicks in when you set the clock to 689. That's why the 7900 GTX SC was clocked at 690.
All this brings us to the decision to use a delta or not. If you hit any of these borders and your card fails to clock any higher, then your ROP/Shader core is weaker than your vertex. In those cases, a no delta BIOS may help. So, for example, you can clock to 715 but not 716, then you are likely limited by the delta - go with a no delta BIOS. If you are hitting 725 but not 726, then your vertex core is likely the limiting factor - keep the delta BIOS.
WOW.......how can i mod my Leadtek 7900GTX, what would the mod do?
i really wanna know mods for it
It would be nice if we can get one started. Post info on the flash and how to facts plus our current scores.
Good Idea Gun and thanks for the exra info Heavy.
Just started playing with my GTO I picked up a couple of hrs ago.
Testing max mem clock, without any tweaks or anything, stock bios and volts I'm currently at 850MHz without visible artifacts. It's also 12mins+ ATITool stable (haven't tested any longer yet). :D
At 860MHz the problems starts tho, 3DMark05 for example passes but I got even slightly slower score than with 850MHz and I think I saw one glitch for like a millisec. Also ATITool only runs for only like a few secs at this speed. Oh well I'm more than happy with 850MHz with stock bios & volts and without any tweaks. :D
http://img123.imageshack.us/img123/7...k053xj4.th.jpg
Room temp is 22~23C, running with sidepanel removed and a 120mm blowing towards the edge of the right side of the card + dfi chipset so it cools down those rather warm running components on the back of the card and the heatpipes on the other side.
RPG do you get the riva error before you get to 850 at all? Or you keep going until 3d mark can't go. I've never used riva b4. Usually use coolbits. Thanks
Yea RivaTuner wasn't able to pass the internal test starting from 831MHz, but I checked with ATITool for example and it ran fine for 13mins (then I stopped it myself) without errors and just disabled the internal test in RivaTuner through the "Power user" tab and continued and found my max stable speed to be around 850MHz.Quote:
Originally Posted by FLMJIGGY
Here's my latest result btw:
Opteron 165 @ 2.8GHz 1.45v
OCZ Gold VX 2x512MB @ 255MHz 2-2-2-5-1T 3.3v
MSI 7900GTO 512MB @ 700/850MHz stock bios/volt (no tweaks) :)
http://img78.imageshack.us/img78/538...k055dg3.th.jpg
Heh, core temp even reached a mighty 58C :p: now as highest temp during the session with room temp ~22C, I love these stock coolers. :D
Still stable... need to check where core craps out, prolly before 720 tho but I can always hope. :p:
Finally I was lucky with a component I bought, I had 700/1700MHz like a goal I really wanted to reach for 24/7 usage and I did! (without tweaking even lol). That's a heck of a $250 deal spent right there (doesn't sound like a jet engine either :p:). Score is a bit low at least compared to the C2D tho but I haven't formatted for ages now and since I installed this card either. :D
I got a similar score (11995). But, with a 700 core and 760 on the RAM and 2.8 GHz on a dual core AMD Opteron 175. The tRRD was the item most suspect after some testing. It is set to 10 instead of the spec 8. I can only assume that this was adjusted to allow the worst cards to operate at spec. It does lower the memory clock 20 MHz, but even so, this one timing adjustment improved 05 scores about 200 points.
Very nice guys!
Thanks Heavy!
Bad news sorta, yesterday when I was happy having reached 700/850 stable and artifactfree I launch FEAR and notice in the menu I have a very high pitched noise and the noise turns different depending on what I had the mouse pointer pointed at. It also appears between the tests when they are being loaded in 3DMark sometimes. I lowered to default clocks and switched dvi port and installed an older version of a driver and it was gone thx god, now I'm currently at 675/825 but I don't really dare to go higher in case the other dvi port was screwed and same thing would happen to this one, as even lowering to stock speeds didn't remove it. 700/850 when I benched before was both artifactfree and stable tho (but wouldn't clock even 2~3MHz higher than that without severe stability drop) Rivatuner's internal test passes only ~680 on core and up to 830MHz on memory tho. Perhaps I should obey these limits or sth if I don't want a chipmunk-like noise coming from my gfx card. :( Who knows if it was a driver related prob or damanged dvi port tho... wish I knew what caused it.
Any ideas? I've googled about 7900GTX high pitched noise and some thinks it's the voltage regulators and some thinks it's just bad caps causing this noise. Doesn't seem to be a cooling issue in my case tho I got a 120mm fan blowing from side of the card towards those.
Hearing the voltage on these has been dropped. Perhaps that limits OC.
Also heard timings were tighter = less OC.
No one has answered as I guess it's obvious - Flash = NO warranty. That has kept me from trying.
Maybe adding some ceramique to the core will help but I doubt.
X6800＠3575MHz
MSI 7900GTO 720/1610
http://jisaku.u-satellite.org/upload...s/3DMark06.jpg
Guys which bios did u use to flash MSI 7900GTo in to GTX?
The link to bios on first page is dead i found two bios files rev1 and 2 on mvktech.net...anybody tried one of those?
Since the cards are identical i think it should work?
not working link :( can ia have another one thanx in advanceQuote:
Originally Posted by johnnyliu3377
Well when i got the card yesterday there was something wrong with her when i tried and installed display driver PC reboots in the middle of installation...tried it in tree difrent PC`s and all the same ...doesnt matter which driver either the one from MSI Cd or nvidia.com the result is the same reboot when screen refreshes ...
I even Flashed it to GTX and its all the same ...:( to bad it was the last one we had on stock...
Ah well i guess i`l take Asus 1900xt 256mb :slapass:
Use this bios it works fine ;) http://www.mvktech.net/component/opt...aed54e7bed000/Quote:
Originally Posted by Barracuda
good work^_^
Quote:
Originally Posted by Shark-357
perfect :toast:
tnx for the bios!Quote:
Originally Posted by johnnyliu3377
but what does -4 -5 -6 do exactly?
and why do i need the 7900GTO.rom?
i dont have the GTO card yet but i will order one this week :)