Please post 7900GT / GTX overclock results

**Chr0n1c** · 04-19-2006, 08:00 AM

What are the highest mem clocks achieved on a 7900GT?

My card is doing well benching @ 1990Mhz stock vmem. Gonna try the vmem mod tonight.
http://service.futuremark.com/compare?3dm06=253799

**Pyr0** · 04-19-2006, 08:07 AM

wow, i can just about run my 7900gt memory at 1820MHz over 1900 is amazing

it amazes and baffles me how you guys can get such high 3dmark scores with lower clockspeeds

with my card running at 705/1800 i score around 11313 in 05 and 6575 in 06

**Chr0n1c** · 04-19-2006, 08:12 AM

Your 06 score is spot on and looks great man, I have not run anything but 06 and 01.

That SM2.0 score is better than mine! And I have the much higher mem. So good work

I just got lucky with my mem. They are unsinked and on stick volts. Tonight I am gonna redo my volt mods and reseat my heatsink and try for more. Also gonna get off this 24/7 OS lol...

**krullet** · 04-19-2006, 09:46 AM

this is with my 79gtx card, terrible scores but decent klocks, i have done a vmodd, but if i up the volt the cards stars throttling, this is on stock V and stock cooling,

i have to get tha card cooler, until that the vmodd is useless,

**bazx** · 04-19-2006, 10:05 AM

i found that the vdd was not much use to be honest any ho

the more i increased the voltage on the ram the more unstable the card became

you have a nice balance there with the ram higher then the core

**Ebola** · 04-19-2006, 10:23 AM

Originally Posted by Chr0n1c

What are the highest mem clocks achieved on a 7900GT?

My card is doing well benching @ 1990Mhz stock vmem. Gonna try the vmem mod tonight.
http://service.futuremark.com/compare?3dm06=253799

I saw something about 2 GHz done by Sf3D no ?

**Chr0n1c** · 04-19-2006, 11:58 AM

Yea I just saw in another thread someone has 1100Mhz So that is what I will aim for tonight after my mod.

**Highland3r** · 04-19-2006, 12:12 PM

Got the GT modded finally (cheers Persivore)
Currently still playing with voltages etc, mem's benchable (and pretty much 100% clean) at 1010mhz w/ 2.15 vDD and a little airflow.
Only issue is can't seem to get a high core speed AND run a high memory speed. Any GPU speeds over ~ 600mhz seem to cause windows to lock with high memor y speeds, despite fairly clean runs.
Core wise, running under water 650mhz 1.415v is the current calling point (vDD down at 2.02v atm), ran for a good while at 650/860 earlier with no artifacting.

Good enough for a shade over 23k 03, and 11k 05. Results arent awsome, but not bad, and should be pretty much 24/7 stable settings too!

http://service.futuremark.com/compare?2k3=4746847
http://service.futuremark.com/compare?3dm05=1966188

**s e t h** · 04-19-2006, 12:19 PM

9148 > http://service.futuremark.com/compare?3dm06=254846

more to come

1230kw bench

**Dazog** · 04-19-2006, 01:16 PM

Got My second XFX 550 core 7900GT today box says 1.2 revison old one says 1.0

I will have to see if that means newer hardware once I compare them.

I will volt mod the new one to 1.4v and both will be on Water. Will post back when its all up and running.

**bubu..** · 04-19-2006, 01:43 PM

this is my galaxy 7900gt

vmod by zilla

liquid cooling ybris "k5" for gpu ybris "one" for cpu ram vga air

volt core 1,55v
ram 2,30v

this is my first shot 3dmark03 and 06 whit pentium D805

740mhz core 1100mhz ram 3d03=25746

703mhz core 1045mhz ram 3d06=6614

**aiya** · 04-19-2006, 04:17 PM

first time poster, long time reader.

i have a quick question: would a 1.4v voltmodded 7900GT be as fast as a X1900XT/X? it seems like it would be with the results posted here would be as fast. i have a evga 7900GT CO SC but i can get a X1900XT for cheap plus this card will be going into a shuttle based system.

**kite7** · 04-19-2006, 06:20 PM

Originally Posted by flytek

9148 > http://service.futuremark.com/compare?3dm06=254846

more to come

1230kw bench

Amazing. What clocks?

**alpha0ne** · 04-19-2006, 08:57 PM

Originally Posted by aiya

first time poster, long time reader.

i have a quick question: would a 1.4v voltmodded 7900GT be as fast as a X1900XT/X? it seems like it would be with the results posted here would be as fast. i have a evga 7900GT CO SC but i can get a X1900XT for cheap plus this card will be going into a shuttle based system.

An overclocked 7900GT can beat a default X1900XT but the X1900XT is a much more powerful card plus 512MB memory

If the card is going into a SFF then DO NOT buy the X1900XT as they run HOT, the 7900GT are a very cool running card with much less V draw so ideally suited for use in SFF

**aiya** · 04-19-2006, 09:35 PM

thanks for the reply! i was thinking that too. looks like i'll be keeping my 7900GT and voltmod it

**snakeskinner** · 04-20-2006, 05:09 AM

Originally Posted by flytek

9148 > http://service.futuremark.com/compare?3dm06=254846

more to come

1230kw bench

Hey man, very amazing scores!!!!

What driver are you using? It says 84.21 on the orb like mine, but mine is approved and yours isn't. Where can I get that driver at? Looks like a great one for benching.

Marlon

**s e t h** · 04-20-2006, 05:38 AM

i think it's cause i'm on xp64 that i don't get whql approved

kite7 - core/mem 715/850 as stated in the title

one card was holding me back though
luckily i got another so mem clocks are gonna go up.

**KoukiFC3S** · 04-20-2006, 06:32 AM

wow those are some great scores.
I am now convinced to pick up a 7900GT.

**snakeskinner** · 04-20-2006, 07:07 AM

Originally Posted by flytek

i think it's cause i'm on xp64 that i don't get whql approved

kite7 - core/mem 715/850 as stated in the title

one card was holding me back though
luckily i got another so mem clocks are gonna go up.

Ok I see, that makes sense.

Its odd that the compare url doesn't show you using co-operative adapters and only shows 252mb of video memory instead of 256mb. The orb does some wierd things sometimes, lol. I don't think I will ever figure out the FSB speed thats listed for some people.

Marlon

**s e t h** · 04-20-2006, 07:07 AM

just remember you will need two cards as i'm running sli

**@07** · 04-20-2006, 05:09 PM

heres mine,

BFG 7900GT
stock : 535/ 800
modded (1.4v): 645/ 800

it seems if i go any higher over 645, when i run 3dmark06, it will freeze ocassionaly for about 15- 20 seconds on the gpu test and my score will be really low.... strange thing is there is no artifacts though ..., my temps are 46 idle, around 60 load with the vf900

**kakaroto** · 04-21-2006, 02:45 AM

Two XFX 7900GT Extreme 520/1500 editions.
Both voltmodded to 1.4v.

Running 650/1720MHz 24/7 no artifacts, temps 33/35C idle - 40C stress.

One card has great RAM (1900MHz stable) but other max out to 1750MHz...

**alpha0ne** · 04-21-2006, 05:22 AM

Originally Posted by kakaroto

Two XFX 7900GT Extreme 520/1500 editions.
Both voltmodded to 1.4v.

Running 650/1720MHz 24/7 no artifacts, temps 33/35C idle - 40C stress.

One card has great RAM (1900MHz stable) but other max out to 1750MHz...

Thats a very good shot kakaroto, it really shows how much more room there is using these cards SLI

Which GPU blocks are you using

**kakaroto** · 04-21-2006, 06:46 AM

Originally Posted by alpha0ne

Thats a very good shot kakaroto, it really shows how much more room there is using these cards SLI

Which GPU blocks are you using

Well there is room, but not plenty. Tygon is good but not that good.

I use two Maze 4 low profiles.

**maxxor** · 04-21-2006, 08:45 AM

this is what i got with my two Evga 7900Gt 1.4v modd and a X2@3.1ghz 10328P in 3Dmark 06 http://service.futuremark.com/compare?3dm06=257680 Cards 684/1900

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