[QUOTE="Krelian-co"]
[QUOTE="ronvalencia"] Your "underclocked 7770" for X1 is BS.ronvalencia
trying to care about your opinion, but i really couldn't, sorry :(
1. X1, 7850, PS4 has 2 primitives per cycle. 7770 has 1 primitive per cycle. This factor is important for DX11 titles.
2. 7850's 800mhz 32 ROPS would be underutilized as shown by 7950(non-BE)'s 800Mhz 32 ROPS results.
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I'll post another 768 stream processor GCN, i.e. AMD FirePro W5000 SKU.
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Notice FirePro W5000's 102 GB/s video memory bandwidth almost matches VGLeaks' eSRAM memory bandwidth.
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Some gaming benchmarks for AMD FirePro W5000.
http://www.tomshardware.co.uk/workstation-graphics-card-gaming,review-32643-9.html
7850 = 45.
W5000 = 33.
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7870 GE's 52.3 fps / 20 CUs = 2.615 x 10 CUs = 26.15 fps which roughly matches 7770's 25.9 fps result. My scale down theory and actual results works
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FirePro W5000's 12 CUs (825 Mhz) scales down from Radeon HD 7850's 16 CUs (860 Mhz).
7850's 45.3 fps / 16 CUs (860Mhz) = 2.831 x 8 CUs = 22.65 fps which roughly matches 7750's 21.5 fps result. 7750 is clocked at 800Mhz. Again, my scale down theory and actual results works.
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If we use the 7850 and 7750 as the two points for the "line of best fit", FirePro W5000 falls into the expected slot for scaled 12 CUs @ ~800 Mhz.
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If you scale 7750's 21.1 FPS result to 12 CUs you get 31.65 FPS which is close to W5000's 33 FPS result.
If you scale 7750's 21.1 FPS result to 16 CUs you get 42.2 FPS which is close to 7850's 45 FPS result. You got 60Mhz difference between 7750 and 7850.
If you scale 7750's 21.1 FPS result to 18 CUs you get 47.47 FPS which is between 7850's and 7870's FPS results.
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The gap between 31.65 FPS and 47.47 FPS is about 33 percent i.e. 31.65 FPS has about 66 percent of 47.47 FPS performance.
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The gap between 47.47 FPS and 31.65 FPS is about 49.9 percent i.e. 47.47 FPS has 49.9 percent extra performance over 31.65 FPS.
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Both 31.65 FPS and 47.47 FPS plays the same game with the same settings.
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So this means a game the PS4 can run at a locked 30fps will run at sub-15fps on the Xbox One...or get downgraded graphically. Thanks.
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