AMD is going to play the price/performance card against GeFo

[Andreas G]

When we presented you with a slide saying the RV770 core sports 800 shaders and not 480 like most people believed, it was met with a certain amount of skepticism, which is very understandable as many of the larger news sites have been reporting 480 shaders, although without presenting any proof for it. We know now that the rumor of 480 shader processors was planted by AMD and that RV770 indeed has 800 shader processors. We also know that AMD is aware that the RV770 as a single core is not enough to match the GT200 core from NVIDIA. Not surprisingly, AMD is going to play its trump of price/performance, but that doesn't mean that there's no raw performance to play with.

RV670 and the Radeon HD 3800 series offered a decent price/performance ratio, but it was rather weak compared to NVIDIA's best cards. RV770 is a mainstream chip, but unlike RV670, RV770 is going to play in the upper mainstream and performance segments and is a much more worthy opponent to NVIDIA's high-end GPUs. The slide below also shows AMD comparing the performance of Radeon HD 4870 and GeForce GTX 260 measured in FLOPS;

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After NVIDIA's decision to cut prices, Radeon HD 4870 and GeForce GTX 260 will be more evenly priced. However, you will still be able to get two Radeon HD 4850 for the price of one GeForce GTX 260 and looking at the recent CrossFire results posted over at Chinese forum Chiphell, 4850 CrossFire scores better.

System:
CPU: Intel Core 2 Extreme QX9650 4.00GHz (400x10)
RAM: DDR2 1066 5-5-5-15
Graphics: HD??50 CrossFire 625/2000MHz

Click to enlarge

Same system, but single GeForce GTX 280:

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The last picture was sent to us and we've located it at a couple of places, but not the original post by VictorWang. We see no reason to doubt it though.

[hsew]

[Delph1]

[hsew]

poor nVidia's in for a beating...Unless their new shader architecture pulls off the same thing intel pulled off when it transitioned from netburst to conroe

[Delph1]

It's basically the same shaders as in G8x/G9x, but they've managed to fix something they should've fixed a long time ago. Unfortunately it doesn't seem like it adds as much as some slides have claimed.

//Andreas
_________________
"I'm sort of a postmodern vegetarian, I eat meat ironically"
"You are our Swedish superhero "

Forget everything, knowledge is your enemy, it's only going to make you second-guess yourself."

[hsew]

Fixed something? what did they fix?

[aca]

What are u talkin about delph1. You mean GS performance?

[Delph1]

Simplified, rumor has it that one of the (three) shader components was only working a third of the time in the G8x/G9x series.
Now all three shader components are supposed to work at full capacity, which is suppose to give G200 a pure boost in shader performance.

I haven't seen anything like that yet though.

//Andreas
_________________
"I'm sort of a postmodern vegetarian, I eat meat ironically"
"You are our Swedish superhero "

Forget everything, knowledge is your enemy, it's only going to make you second-guess yourself."