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[hardocp] BF4 AMD Mantle Video Card Performance Review Part 1 - Page 7

post #61 of 149
Quote:
Originally Posted by Moustache View Post


Don't you think it would be nicer to see 4X MSAA for the single gpu? rolleyes.gif

 

It would certainly make it easier to compare scaling between cards. But I have a feeling that they used 2xMSAA on the single card so they could get frame-rates as close to 60 fps as possible. 4xMSAA would've probably tanked frames into the mid-upper 40s.

post #62 of 149
Quote:
Originally Posted by Kinaesthetic View Post

It would certainly make it easier to compare scaling between cards. But I have a feeling that they used 2xMSAA on the single card so they could get frame-rates as close to 60 fps as possible. 4xMSAA would've probably tanked frames into the mid-upper 40s.

They had to save the 780ti from running out of vram.

Maybe with 4xMSAA it would have.
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post #63 of 149
Why is it so hard to figure out AMD did not create Mantle to get a leg up on Nvidia? It has nothing to do with GPU performance. They created it to improve their CPU performance against Intel. That is what they should be testing. This review is useless.
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post #64 of 149
]
Quote:
Originally Posted by Kinaesthetic View Post

It would certainly make it easier to compare scaling between cards. But I have a feeling that they used 2xMSAA on the single card so they could get frame-rates as close to 60 fps as possible. 4xMSAA would've probably tanked frames into the mid-upper 40s.

Yes, they did state that actually. Whether it was right or wrong is subjective but that's the choice they made.
Quote:
Originally Posted by bencher View Post

They had to save the 780ti from running out of vram.

Maybe with 4xMSAA it would have.

I believe they ran the SLI/Xfire test with 4xmsaa so it would have been an issue there as well.
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post #65 of 149
Quote:
Originally Posted by bencher View Post


They had to save the 780ti from running out of vram.

Maybe with 4xMSAA it would have.

 

It clearly didn't run out of VRAM on the 4xMSAA test with Xfire/SLI. The 2xMSAA was purely so that they could have playable performance on a single card, since not a single one of them would've provided close to 60 fps @ 4xMSAA single card.

post #66 of 149
D3D

Mantle

Wow, it looks like AMD's frame pacing is FINALLY caught up to SLI when used with Mantle. I was hoping Mantle could accomplish that. But that's the problem, you NEED mantle to get frame pacing that smooth, when Nvidia SLI is that smooth in almost every game, using just D3D. Either way, I still wont even bother with mutli-GPU from either camp again until they start making multiple cores work together on the same frame instead of alternating frames.
post #67 of 149
Quote:
Originally Posted by sugarhell View Post

Why no minimum fps...

^this. prolly so as not to show how vram is affected.
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post #68 of 149
Quote:
Originally Posted by iamhollywood5 View Post

D3D

Mantle

Wow, it looks like AMD's frame pacing is FINALLY caught up to SLI when used with Mantle. I was hoping Mantle could accomplish that. But that's the problem, you NEED mantle to get frame pacing that smooth, when Nvidia SLI is that smooth in almost every game, using just D3D. Either way, I still wont even bother with mutli-GPU from either camp again until they start making multiple cores work together on the same frame instead of alternating frames.

Amd frame pacing has been equal or better than Nvidia's before mantle. Not sure where you got that from.
Quote:
Originally Posted by Kinaesthetic View Post

It clearly didn't run out of VRAM on the 4xMSAA test with Xfire/SLI. The 2xMSAA was purely so that they could have playable performance on a single card, since not a single one of them would've provided close to 60 fps @ 4xMSAA single card.

Good point. I overlooked that.
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post #69 of 149
Quote:
Originally Posted by bencher View Post

Amd frame pacing has been equal or better than Nvidia's before mantle. Not sure where you got that from.

Either you've been misled or you're in denial. AMD frame pacing is definitely better than it used to be, but it still has significantly more frame time variance than SLI.

Look here: http://www.pcper.com/reviews/Graphics-Cards/Frame-Rating-AMD-Radeon-R9-290X-CrossFire-and-4K-Preview-Testing/Crysis-3



The SLI line is just tighter than the CFX line. Pretty hard to argue with this...
post #70 of 149
Quote:
Originally Posted by iamhollywood5 View Post

D3D Warning: Spoiler! (Click to show)


Mantle

Wow, it looks like AMD's frame pacing is FINALLY caught up to SLI when used with Mantle. I was hoping Mantle could accomplish that. But that's the problem, you NEED mantle to get frame pacing that smooth, when Nvidia SLI is that smooth in almost every game, using just D3D. Either way, I still wont even bother with mutli-GPU from either camp again until they start making multiple cores work together on the same frame instead of alternating frames.

That's single-card, and nVidia isn't that good.

Here's the Crossfire/SLI graph from the review:
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