7900GTX vs 7800GTX512 vmoded

**guess2098** · 03-09-2006, 02:21 AM

7900GTX.....650/1600

well, the timing of ram is been tweaked and hard to overclock too high unless change the timing!!! i saw some companies tweak their 7900gtx not as tight as original to give user some overclock...

My vmoded 7800GTX512
the "original no vmoded" 7800GTX512 is very hard to reach 650 without artifact... also i tweaked the timing of this ram. without vmoded, my seting can only go up to around 1700 (850), very very tight timing, that is why everyone saw my vmoded 7800GTX512 overclock before, the speed of the ram is only overclock to 1950ish

let's see 7900GTX vs 7800GTX512 vmoded
650/800 vs 650/800
3Dmark06 is set as
1680X1050 plus anisotrpic 16x

single card

7900GTX

7800GTX

SLi

7900GTX SLi

7800GTX512 SLi

in fact, i feel only the 90nm core is smaller than 120nm, there are not diffierent under same speed!!!

BUT REMEMBER!!!!
there are only few non-vmoded 7800GTX512 can do 650 without artifact!!!

**eva2000** · 03-09-2006, 02:43 AM

interesting and volts used on 7800GTX ? temps or each card under load/idle ?

**Vapor** · 03-09-2006, 02:48 AM

Hmmmm, why is only the HDR/SM3.0 score dropping more on the 79 than the 78?

Anyway, very insightful Denny, thanks

Also, any chance of the other benchmarks getting compared like this?

**nachthymnen** · 03-09-2006, 03:15 AM

That's an intresting compare

Another reason to hold my GTX 7800 v-modded

**Fixxxer** · 03-09-2006, 03:27 AM

Good work!

In fact 7800GTX and 7900GTX are the same card, and the only difference is that the 7900GTX has a 90nm GPU.

BTW, 7900GTX overclock like hell, more than 7800GTX. For lots of people that's more than a good reason to take two.

**v0dka** · 03-09-2006, 04:15 AM

I must still say I'm a bit dissapointed in the 7900 though

**rapty** · 03-09-2006, 04:28 AM

I am about to buy either a 1900 XTX or 7900 GTX what would be the best choice?

**kakaroto** · 03-09-2006, 03:20 AM

Nice compare denny! So i can conclude that both cards are almost the same (clock per clock)?
The 7900GTX also gives some points away on SM3.0/HDR

**perkam** · 03-09-2006, 04:32 AM

Wow....so its true then.

7900GTX loses out to 7800GTX in BOTH SINGLE CARD AND SLI

Dang....

Perkam

**rapty** · 03-09-2006, 04:39 AM

Yeah but what about when their overclocked to the maximum headroom on stock coolers what then?

**perkam** · 03-09-2006, 04:57 AM

Originally Posted by rapty

Yeah but what about when their overclocked to the maximum headroom on stock coolers what then?

There are some 7900GTX's with 1.2ns ram whereas 1.1 is guaranteed on the 7800GTX512

So "maximum headroom" isn't all that different from 7800

This is definitely not a step up as going from X1800 to X1900 seeing as there were tangible differences there, unlike here.

Perkam

**rapty** · 03-09-2006, 05:04 AM

So I come back to my original question do you think the 1900 XTX vs the 7900 GTX would be better or maybe two 7900 GT's?

**DelaMaris** · 03-09-2006, 05:19 AM

But 7900GTX is on stock clocks, so if we overclock it we get much better score...What score does 1900 XTX get on stock clocks?

**Dynasty** · 03-10-2006, 08:56 AM

Originally Posted by perkam

There are some 7900GTX's with 1.2ns ram whereas 1.1 is guaranteed on the 7800GTX512

So "maximum headroom" isn't all that different from 7800

This is definitely not a step up as going from X1800 to X1900 seeing as there were tangible differences there, unlike here.

Perkam

All 7900gtx should be using :

Samsung 604..BJ11 (1.1ns).

Where did you see an 7900 gtx with BJ12's ?

**milen_bg** · 03-10-2006, 08:58 AM

http://www.monarchcomputer.com/Merch...ct_Code=190779

EVGA --here is writen 1,2 nsek memory for 7900GTX

**CapFTP** · 03-09-2006, 04:42 AM

this is truly amazing.....good job !

**cupra** · 03-09-2006, 04:46 AM

great work guess, dono i guess that we expect more from the 7900gtx,
so its a little dissapointed .

**perkam** · 03-09-2006, 05:08 AM

Two 7900GTs would be ze bomb

Why ?

Your answer lies here: http://www.xtremesystems.org/forums/...ad.php?t=91918

Perkam

**perkam** · 03-09-2006, 06:55 AM

On stock cooler, Max oc should is 550/1500 for 7900GT based on reviews.

Perkam

**DelaMaris** · 03-09-2006, 07:18 AM

EVGA is offering 7900 GT CO SUPERCLOCKED on 550 mhz and mem 1580mhz...

**OPPAINTER** · 03-09-2006, 07:30 AM

These 7900GTX cards are gunna fly

No cold bug and need very little voltage. I was playing with one of mine yesterday for a little bit before I blew out my OS. Just getting started and reached the 900s with the core at 1.7V, didn't get a chance to play with the memory.

OPP