NVIDIA GeForce 7800 GTX 512: More Than Just More Memory
by Derek Wilson on November 14, 2005 9:00 AM EST- Posted in
- GPUs
Introduction
This card should have gotten a different name. With hugely increased clock speeds, more memory, a beefy heatsink (the one used on the Quadro FX 4500), and a new board layout, the GeForce 7800 GTX 512 is one very powerful card. Oh yeah, and it's got more RAM too.
Earlier this month we started seeing ATI's new Radeon X1800 XT show up for sale. Today, ATI's high end part gets some revamped competition from NVIDIA's new offering. And even though we don't like the name, the 7800 GTX 512 is an excellent performer. Will the increased core and memory clock speed be enough for NVIDIA to topple ATI's high end monster? Will the additional memory make a tangible difference? The answers may not be as straight forward as they could be, but we were certainly excited to get our testing done and find out.
Before we get into the thick of it, it is important to note that ATI released drivers last week that greatly improve OpenGL performance with 4xAA. One of the suprises we will see from this new ATI creation is that the X1800 XT actually bests the current 7800 GTX in Doom 3 when 4xAA is enabled. This driver is a welcome development from ATI (whose OpenGL drivers have been somewhat lacking for quite some time), but with the new 7800 GTX 512 coming up to bat, it may be too little too late.
In any case, this is the second card in as many weeks that NVIDIA has brought out in response to new ATI parts. We found the 6800 GS to be quite a good fit for it's price point, and the 7800 GTX 512 is no slouch either. But with our price engine showing a $700 barrier to entry at the time of publication, we aren't quite as excited about price/performance ratio potential. Of course, the Radeon X1800 XT is still running between 600 and 700 at the moment, so the competition is still in the same ball park price wise.
Let's take a look at what we actually get for all that cash before we decide whether it's worth it or not.
This card should have gotten a different name. With hugely increased clock speeds, more memory, a beefy heatsink (the one used on the Quadro FX 4500), and a new board layout, the GeForce 7800 GTX 512 is one very powerful card. Oh yeah, and it's got more RAM too.
Earlier this month we started seeing ATI's new Radeon X1800 XT show up for sale. Today, ATI's high end part gets some revamped competition from NVIDIA's new offering. And even though we don't like the name, the 7800 GTX 512 is an excellent performer. Will the increased core and memory clock speed be enough for NVIDIA to topple ATI's high end monster? Will the additional memory make a tangible difference? The answers may not be as straight forward as they could be, but we were certainly excited to get our testing done and find out.
Before we get into the thick of it, it is important to note that ATI released drivers last week that greatly improve OpenGL performance with 4xAA. One of the suprises we will see from this new ATI creation is that the X1800 XT actually bests the current 7800 GTX in Doom 3 when 4xAA is enabled. This driver is a welcome development from ATI (whose OpenGL drivers have been somewhat lacking for quite some time), but with the new 7800 GTX 512 coming up to bat, it may be too little too late.
In any case, this is the second card in as many weeks that NVIDIA has brought out in response to new ATI parts. We found the 6800 GS to be quite a good fit for it's price point, and the 7800 GTX 512 is no slouch either. But with our price engine showing a $700 barrier to entry at the time of publication, we aren't quite as excited about price/performance ratio potential. Of course, the Radeon X1800 XT is still running between 600 and 700 at the moment, so the competition is still in the same ball park price wise.
Let's take a look at what we actually get for all that cash before we decide whether it's worth it or not.
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steelmartin - Monday, November 14, 2005 - link
I guess if you buy this card you´re doing so partly because you´re interested in running games in the hiqhest quality settings. But afaik it can´t do OpenEXR HDR and AA like in Far Cry, so I think this card is somewhat of a contradiction. Surely it depends on how the appliction uses HDR, like Valve showed with HDR and AA for everyone in Lost Coast. But I would say, not a very futureproof card then, as everyone predicts HDR will be big in games, and I guess a lot of them will use OpenEXR. Still, it will top the charts, for what that´s worth.And about the extra memory, how about taking the card for a spin with Call of Duty 2? Seems that game takes advantage of 512 MiB.
/m
DerekWilson - Monday, November 14, 2005 - link
The advantage ATI offers is MSAA with floating point HDR. We've already seen a game (Black and White 2) that employs AA and HDR by using Supersample FSAA, and as you pointed out Valves Source engine avoids full float render targets and still gets good results.The performance hit is larger with SSAA, but it is certainly possible to have HDR and AA without the ability to do MSAA on floating point/multiple render targets. And the sheer brute strenth the 7800 GTX 512 has can easily be spent on SSAA as shown (again) by Black and White 2.
quasarsky - Monday, November 14, 2005 - link
i'm an ati fan but this is ridicoulous. ati just gets crushed and crushed. even the regular 7800 gtx gets crushed. but i knew something like this would happen if the 7800 was cranked up to a clockspeed close to the x1800xt. those extra 8 pipes and the extra memory bandwidth just lead to the same thing: crushing all opponents lol. man. is ati the new intel? i hope not :(. but thats how its looking currently :'(.ha ha i guess my x800xt aiw isn't looking so hot right now :-D.
George Powell - Monday, November 14, 2005 - link
But quite useless for most people who don't run games at statospheric resolutions.I would really like to see this running at 2560x1600 on the Apple 30".
Ozenmacher - Monday, November 14, 2005 - link
That is some pretty amazing performance. It makes my ATi X800Xl look rather pathetic...sighsKaPolski - Monday, November 14, 2005 - link
GoGo geforce 3 ti500 Woohoo!!!!! trust me it spanks the 7800 gtx 512 down to a carefully squeezed lemon :DXenoterranos - Monday, November 14, 2005 - link
w00t! I traded my matching-numbers first-run GeForce 3 (Before they were TI'd) in for a 5900. im not upgrading till socket M2 comes a-rolling into the bargain bin.LoneWolf15 - Monday, November 14, 2005 - link
It's called "marketing". Don't succumb to it.It it a fast card? Heck yeah. Is it necessary? Far from it. I have an ATI X800XL as well, and I don't plan on switching until I have to. Game developers will continue to make games compatible with our cards for some time to come, and the only thing we'll be missing is Shader Model 3.0. So far, what I have seen of it hasn't been a big enough improvement to encourage me to go out and plunk cash down on a new card. And seeing as my gaming is now measured in hours per week (as opposed to hours per day, like when I worked in a computer store) I couldn't justify spending that kind of bread on something that isn't constantly in use.
I think the 7800GTX 512 is a neat looking toy. But that's just it: it's a toy. I'd rather cover two car payments or two-thirds of a mortgage payment, things I NEED to spend money on
Pythias - Monday, November 14, 2005 - link
I agree. I also think the $600 dollar pricetag on the x1800xt is a bit much as well.
phusg - Monday, November 14, 2005 - link
LOL. Weary != wary and in fact reads as the opposite to what I think you mean in this sentence!