[HWcanucks] HD4870 & HD4850 Crossfire & Mixed Crossfire Performance Review - Page 3 - Overclock.net

Licht · 08-08-08

Quote:

Originally Posted by scottath

You could crossfire the 3870 with the 3850 also....

Bad thing to come out of that review.....no 38xx+48xx crossfire...dosent work

I saw sites saying otherwise. I think Grunion tested it actually...

sccr64472 · 08-08-08

Quote:

Originally Posted by VulcanDragon

Well like the article says, the faster card basically has to degrade down to the level of the slower card. So yea, it would not make any sense to do this IMHO, unless maybe you already owned a 4870 and you won a free 4850 somehow.

How sure are you that your information is accurate? I read a thorough explanation of Crossfire awhile back that stated Crossfire can even use cards running at different clock speeds. I remember that specifically because I thought it was nice how you could use max OCs on both cards. I find it hard to swallow that it could allow both cards to run at different clock speeds, but not different shaders, etc.

pauldovi · 08-08-08

Based on those reviews (and many other reviews minus Anandtech), the GTX260 is a better buy than the 4870. No only is it cheaper, it comes with better warranty support than the 4870 and in general its "low FPS" is higher than the 4870's.

003 · 08-09-08

Quote:

Originally Posted by lilsquirtle

so i take it u can crossfire a 4870 and a 4850 together? wow. might switch to ATi soon then

Yeah, but performance is exactly the same as 4850 + 4850 crossfire, so it would be a waste to get a 4850 + a 4870.

If you already have a 4870 and don't want to pay for another, then getting a 4850 might be a reasonable thing to do.

xSeany · 08-09-08

Quote:

Originally Posted by Dman

Ok since you don't get it I'll tell you, everyone is going by price point, and since a single 280 card costs between $450-$550, and a single 4870 costs between $268-$300. The 4870 is only about 15% slower then the 280 but costs about 33% less. Crossfired 4870's cost about $550-$600, while sli 280's will cost you about $900-$1100. So from a price point 2 4870's almost cost the same as 1 and give you a almost a 40% boost in performance.

Not everyone..

Nvidia has already stated they're working on Hybrid SLI... It's not like this will be an ATI advantage. Well, maybe a cheaper solution. But for some; price is not an obligation, maximum performance is.

**grunion** · 08-09-08

Quote:

Originally Posted by xSeany

Not everyone..

Nvidia has already stated they're working on Hybrid SLI... It's not like this will be an ATI advantage. Well, maybe a cheaper solution. But for some; price is not an obligation, maximum performance is.

Do you know what Hybrid SLI involves?

CDMAN · 08-09-08

Hybrid SLI® technology, based on NVIDIA’s industry-leading SLI technology, delivers multi-GPU (graphics processing unit) benefits when an NVIDIA® motherboard GPU is combined with an NVIDIA discrete GPU. Hybrid SLI increases graphics performance with GeForce® Boost and provides intelligent power management with HybridPower™.

http://www.nvidia.com/object/hybrid_sli.html

**grunion** · 08-09-08

Quote:

Originally Posted by CDMAN

Hybrid SLI® technology, based on NVIDIA’s industry-leading SLI technology, delivers multi-GPU (graphics processing unit) benefits when an NVIDIA® motherboard GPU is combined with an NVIDIA discrete GPU. Hybrid SLI increases graphics performance with GeForce® Boost and provides intelligent power management with HybridPower™.

http://www.nvidia.com/object/hybrid_sli.html

Exactly, it has nothing to do with combining 2 different cards.

xSeany · 08-09-08

I must be mixing it up with another word for it. Allow me to search for it... I know it exist, however.

EDIT: ForceWare, bleh. I can't find the original interview I found though, where the nvidia person states you could do something like this in the future.. Then again, I found it a while ago.

*VulcanDragon* · 08-09-08

Quote:

Originally Posted by sccr64472

How sure are you that your information is accurate? I read a thorough explanation of Crossfire awhile back that stated Crossfire can even use cards running at different clock speeds. I remember that specifically because I thought it was nice how you could use max OCs on both cards. I find it hard to swallow that it could allow both cards to run at different clock speeds, but not different shaders, etc.

Just going on the article...their test results seem to back up what they said. A 4870 plus a 4850 performs pretty much exactly as two 4850s does.

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[HWcanucks] HD4870 & HD4850 Crossfire & Mixed Crossfire Performance Review

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