red1776 said:
Two 5870's in CF would outperform a 5970, a 5970 is a pair of 5850's
*Facepalm* Actually its based on the 5800 series, so you cannot say it is based on one card. It might be clocked to 5850, but this can be changed...
red1776 said:
Two 5870's in CF would outperform a 5970, a 5970 is a pair of 5850's
where's the 5750?
It would be handy to know what improvement I would get running XP.
*Facepalm* Actually its based on the 5800 series, so you cannot say it is based on one card. It might be clocked to 5850, but this can be changed...
That is true. However the 5970 is based on dual 5870 GPU's that have been underclocked. Saying that the 5970 is a pair of 5850 cards is very wrong as the core configuration is different, it is the same as the 5870.
well okay, but I think that's splitting hairs. I could have been more accurate in saying that it performs as two 5850's, but you are taking the same chip and putting "restrictor plates" on them. the 5970 is clocked as a 5850, has the same ROP's,Z-stencil,mem data rate,bandwidth, and performs very close to 2x 5850's (actually gets beat more often than not.) A card such as the Ares is actually a pair of 5870's. am I wrong in thinking that a Cypress pro is a Cypress XT with a 160 SPU cluster and 8 Texture units fused? or does the XT have other architectural differences?
Sorry didn't want to start an argument here. That said there is nothing to argue over. The Radeon HD 5970 features a pair of Radeon HD 5870 (Cypress XT) GPU's which have been down clocked to the Radeon HD 5850 operating frequency. Clock them back up and you have two Radeon HD 5870's, if you have the cooling to do so.
The core configuration of the Radoen HD 5870 and 5970 GPUs is 1600:80:32 while the Radeon HD 5850 is 1440:72:32. Anyway enough about that it is a pointless and off topic argument. Back to Civ 5![]()
Burty117, the rest of Fermi lineup is shocking to you? For example, GTX470 has been available for $250-270 on many occasions, a card that's generally a hair within HD5870 on average and costs $80-100 less.
The inferior performance of ATI cards has nothing to do with the drivers. NV's architecture is superior in DX11 games (more advanced Tessellation engine, gather4 instructions, etc.):
Besides BF:BC2 and Mafia 2, there are practically no DX11 games where 5850 beats a GTX470 or HD5870 beats a GTX480:
Lost Planet 2 - http://www.legionhardware.com/articles_pages/lost_planet_2_gpu_performance_preview,6.html
Metro 2033 - http://www.hardwarecanucks.com/foru...eforce-gtx-470-super-overclock-review-12.html
Just Cause 2 - http://www.xbitlabs.com/articles/video/display/nvidia-geforce-gtx-460_13.html#sect1
AvP - http://www.xbitlabs.com/articles/video/display/nvidia-geforce-gtx-460_11.html#sect1
Then there are BattleForge, STALKER:CoP, Dirt 2, Civ5 and even Starcraft 2 (although not DX11).
While HD5000 series clearly dominates from the performance/watt perspective, ATI no longer has the better card in any price bracket. From a price/performance perspective, GTS450 > 5750, GTX460 768 > 5770, GTX460 1GB > 5850, GTX470 > 5870. The only card with no equals is the 5970.
With HD6000, ATI will come on top once again.