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Old 03-26-10, 07:50 PM   #181
Arioch
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Default Re: NVIDIA GF100 Previews

I just upgraded to a Thermaltake Toughpower 1200 PSU but assuming I have plenty of juice to run SLI with my current rig the temps under load scare me. Games like Metro 2033 and Just Cause 2 are killing my poor 295GTX in stereo 3D and aside from having DX11 features available, the frame rate difference between a single 480 and my current card means I need to go SLI or not at all. Bleh...
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Old 03-26-10, 07:52 PM   #182
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Default Re: NVIDIA GF100 Previews

This card is a mixed bag.

Some data on the AA performance improvements from GT200 to Fermi--

Quote:
Originally Posted by Anandtech
When we reviewed the Radeon 5870 back in September we found that AMD’s 8x MSAA performance was virtually unchanged, and 6 months later that still holds true. The performance hit moving from 4x MSAA to 8x MSAA on both Radeon cards is roughly 13%. NVIDIA on the other hand took a stiffer penalty under DX10 for the GTX 285, where there it fell by 25%. But now with NVIDIA’s 8x MSAA performance improvements for Fermi, that gap has been closed. The performance penalty for moving to 8x MSAA over 4x MSAA is only 12%, putting it right up there with the Radeon cards in this respect. With the GTX 480, NVIDIA can now do 8x MSAA for as cheap as AMD has been able to.

And AF remains unchanged on Fermi from GT200 and is technically inferior to 5xxx--

Quote:
Originally Posted by Anandtech
Last but not least, there’s anisotropic filtering quality. With the Radeon 5870 we saw AMD implement true angle-independent AF and we’ve been wondering whether we would see this from NVIDIA. The answer is no: NVIDIA’s AF quality remains unchanged from the GTX200 series. In this case that’s not necessarily a bad thing; NVIDIA already had great AF even if it was angle-dependant. More to the point, we have yet to find a game where the difference between AMD and NVIDIA’s AF modes have been noticeable; so technically AMD’s AF modes are better, but it’s not enough that it makes a practical difference.
http://www.anandtech.com/video/showdoc.aspx?i=3783&p=7
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Old 03-26-10, 07:53 PM   #183
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Default Re: NVIDIA GF100 Previews

Quote:
Originally Posted by Arioch View Post
I just upgraded to a Thermaltake Toughpower 1200 PSU but assuming I have plenty of juice to run SLI with my current rig the temps under load scare me. Games like Metro 2033 and Just Cause 2 are killing my poor 295GTX in stereo 3D and aside from having DX11 features available, the frame rate difference between a single 480 and my current card means I need to go SLI or not at all. Bleh...
It's a shame you can't fit this in your case (you'll need it for SLI)

http://snukes.files.wordpress.com/20...onditioner.jpg

or this

http://www.silvernutmeg.com/imagebank/1188916710.jpg
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Old 03-26-10, 07:54 PM   #184
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Default Re: NVIDIA GF100 Previews

Quote:
Accelerated Jittered Sampling - Improving Anti-Aliased shadows
You guys must recognize this, you play a game, have 8xAA on and everything looks nice and dandy. Then you look at a shadow and notice it's all blocky and messed up. Here's where a new sampling method kicks in, it's called Accelerated Jittered Sampling. Now the geek explanation (and really I had to look this up) is this: Jittered Sampling is a stirred process in which values are sampled equally over a rectilinear subspace. The exact position of the respective sample in each sub rectangle is thereby varied randomly.

Take a look at the first example below (lower left image). You'll notice the weird blocky shadows. This is in 3DMark Vantage with AA levels turned up. So in layman's terms, what does it do then? Well, that banding is removed and replaced by noise. The result are much more smooth non-blocky shadows.

Let's have a peek at a scene again, where now Accelerated Jittered Sampling is applied:



So there you go, to tackle this issue GF100 has Accelerated Jittering Sampling which improves the quality of AA shadows and sure, will likely also bring some additional AA performance.
This is pretty cool...does Ati have this?
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Old 03-26-10, 07:55 PM   #185
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Default Re: NVIDIA GF100 Previews

Guru3d Benched Just Cause 2-

http://www.guru3d.com/article/geforc...-480-review/25

Not sure what I'm going to do and I'm leaning heavily towards just keeping my overclocked HD 5870.
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Old 03-26-10, 08:01 PM   #186
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Default Re: NVIDIA GF100 Previews

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Guru3d Benched Just Cause 2-

http://www.guru3d.com/article/geforc...-480-review/25

Not sure what I'm going to do and I'm leaning heavily towards just keeping my overclocked HD 5870.
Smart move IMHO. These 4x0 cards are 'half assed' and that equals no sale.

I'm not sure why Nvidia felt that they could charge more money for these cards and it's blatantly obvious why they were kept so 'hush hush' for so long.

58xx sales are going to soar now. I'm glad I got mine before they were out of stock (I just got the order confirmation)
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Old 03-26-10, 08:05 PM   #187
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Default Re: NVIDIA GF100 Previews

After reading the reviews I am also glad I managed to pick up the 5870s a couple of months ago when they were below $400. The benchmark results were quite disappointing.
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Old 03-26-10, 08:05 PM   #188
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Default Re: NVIDIA GF100 Previews

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Originally Posted by JasonPC View Post
HardOCP has a very good review

They compare the 5970 to SLI 480s
5870 to 480
5850 to 470

And they push the cards hard with high resolutions and AA.
i never liked H reviews, they have a weird way of doing it, with different AA/AF settings usually.
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Old 03-26-10, 08:07 PM   #189
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Default Re: NVIDIA GF100 Previews

The only game the 480 is really pulling ahead is Metro2033, but ATI is just going over final code to optimize for it. TWIMTBP gave Nvidia early access to the code, ATI just got it last week. There isn't even a profile for it yet for single or multi GPU. So glad I bought my HD5870 at launch. Glad I didn't wait and hold onto hope for Nvidia and this mess.

Also the brute force method of Nvidia is getting really old. More heat, more power, more, more, more just to compete with a very efficiently designed HD5870. They need to start fresh, Fermi wasn't it....
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Old 03-26-10, 08:08 PM   #190
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Default Re: NVIDIA GF100 Previews

Quote:
ATI reaps mucho benefits from the release of their Catalyst 10.3 driver (used in this review). The new driver brings significant performance boosts throughout the Radeon HD 5800 and 5900 series. Performance was enhanced in a lot of game titles. Would ATI not have released Catalyst 10.3 on time, then this review would have looked different. You'll probably notice a review or two out on the web using older drivers.
With that said..i wonder how much nvidia can squeeze out...but still...price/heat is pretty high...on both counts -.-
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Old 03-26-10, 08:14 PM   #191
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Default Re: NVIDIA GF100 Previews

Just put in the order for the Sapphire Radeon HD 5870 1GB Vapor-X



Was going to go Gigabyte as the prices on them are a bit cheaper usually in AUS and the quality has always been impressive...atleast 4 me..but i liked the cooler on the sapphire :P
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Old 03-26-10, 08:16 PM   #192
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Default Re: NVIDIA GF100 Previews

Quote:
Originally Posted by GURU3D Review
One warning, the GTX 480's heapipe based heatsink is exposed on the top side, touching that card during or shortly after gaming is dangerous, as it heats up real bad.
You'd expect to see that kind of warning on a stove, not a video card. It also indicates that this design will dump a lot of heat directly into the case
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