Crytek FarCry 1.33	Source: Ubisoft

Real-time editing, bump mapping, static lights, network system, integrated physics system, shaders, shadows, and a dynamic music system are just some of the state of-the-art features that the CryENGINE offers. The game was set to Ultra quality and the Ubisoft's Regulator and Training demos were run.

CryTek FarCry 1.33:
UQ Regulator 1024x768:	FPS	Ranking
Diamond Viper Radeon HD 2900XT	120.73
Diamond Viper Radeon HD 2900XT CrossFire	108.09
MSI RX2600XT Diamond	114.32
Asus EAX1900XTX 2DHTV/512M/A	115.87
Asus EAX1950PRO/HTDP/256M/A	117.69
MSI NX8800GTX-T2D768E	124.21
Foxconn FV-N88SMCD2-ONOC	126.13
MSI NX8800GTS-T2D320E-HD-OC	115.3
GeForce 8600GTS SLI	123.48
Foxconn 8600GTS-256	116.48
MSI NX8600GTS-T2D256E-OC	117.73
Albatron 8600GT-256	105.18
MSI NX8500GT-TD256E	57.56
MSI NX7950GX2-T2D1GE	118.75
MSI NX7900GTX-T2D512E	122.88
MSI NX7900GS-T2D512E-OC	113.26
Gigabyte GV-NX76T256D-RH	110.03
Biostar Sigma-Gate GeForce 7600GS	102.56
Gigabyte GV-NX85T256H (dual GFX cards in SLI)	98.47
UQ Training 1024x768:	FPS	Ranking
Diamond Viper Radeon HD 2900XT	131.19
Diamond Viper Radeon HD 2900XT CrossFire	124.66
MSI RX2600XT Diamond	128.65
Asus EAX1900XTX 2DHTV/512M/A	131.43
Asus EAX1950PRO/HTDP/256M/A	130.58
MSI NX8800GTX-T2D768E	137.25
Foxconn FV-N88SMCD2-ONOC	137.81
MSI NX8800GTS-T2D320E-HD-OC	127.59
GeForce 8600GTS SLI	136.92
Foxconn 8600GTS-256	130.69
MSI NX8600GTS-T2D256E-OC	131.94
Albatron 8600GT-256	112.64
MSI NX8500GT-TD256E	70.27
MSI NX7950GX2-T2D1GE	129.18
MSI NX7900GTX-T2D512E	134.36
MSI NX7900GS-T2D512E-OC	124.41
Gigabyte GV-NX76T256D-RH	119.26
Biostar Sigma-Gate GeForce 7600GS	108.29
Gigabyte GV-NX85T256H (dual GFX cards in SLI)	115.68
UQ Regulator 1600x1200:	FPS	Ranking
Diamond Viper Radeon HD 2900XT	117.29
Diamond Viper Radeon HD 2900XT CrossFire	107.75
MSI RX2600XT Diamond	67.44
Asus EAX1900XTX 2DHTV/512M/A	108.28
Asus EAX1950PRO/HTDP/256M/A	94.26
MSI NX8800GTX-T2D768E	122.19
Foxconn FV-N88SMCD2-ONOC	119.11
MSI NX8800GTS-T2D320E-HD-OC	112.11
GeForce 8600GTS SLI	109.53
Foxconn 8600GTS-256	70.3
MSI NX8600GTS-T2D256E-OC	71.38
Albatron 8600GT-256	58.37
MSI NX8500GT-TD256E	29.96
MSI NX7950GX2-T2D1GE	117.08
MSI NX7900GTX-T2D512E	112.5
MSI NX7900GS-T2D512E-OC	97.63
Gigabyte GV-NX76T256D-RH	66.06
Biostar Sigma-Gate GeForce 7600GS	56.36
Gigabyte GV-NX85T256H (dual GFX cards in SLI)	44.73
UQ Training 1600x1200:	FPS	Ranking
Diamond Viper Radeon HD 2900XT	130.11
Diamond Viper Radeon HD 2900XT CrossFire	125.26
MSI RX2600XT Diamond	78.37
Asus EAX1900XTX 2DHTV/512M/A	120.36
Asus EAX1950PRO/HTDP/256M/A	106.7
MSI NX8800GTX-T2D768E	136.02
Foxconn FV-N88SMCD2-ONOC	131.12
MSI NX8800GTS-T2D320E-HD-OC	124.26
GeForce 8600GTS SLI	121.42
Foxconn 8600GTS-256	84.36
MSI NX8600GTS-T2D256E-OC	85.68
Albatron 8600GT-256	64.42
MSI NX8500GT-TD256E	32.18
MSI NX7950GX2-T2D1GE	129.1
MSI NX7900GTX-T2D512E	120.3
MSI NX7900GS-T2D512E-OC	103.38
Gigabyte GV-NX76T256D-RH	71.5
Biostar Sigma-Gate GeForce 7600GS	60.04
Gigabyte GV-NX85T256H (dual GFX cards in SLI)	56.38

At lower resolutions the dual SLI GeForce 8500GT combo performs pretty well, but at 1600x1200 two 8500GTs are more in GeForce 8600GT range instead of at 8600GTS levels.