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 demo was run.

CryTek FarCry 1.33
Regulator 640x480:	FPS	Ranking
ASRock AM2V890-VSTA (K8T890 200/800 A64 5000+)	185.2
Albatron KM51PV-AM2 (GF6150 200/800 A64 5000+)	170.27
MSI K9N SLI Platinum (NF 570 SLI 200/800 A64 5000+)	171.25
Asus M2-CROSSHAIR (NF 590 SLI 200/800 A64 5000+)	175.26
Foxconn 975X7AA-8EKRS2H (975X 200/667 PD 840)	81.43
MSI P4N Diamond (NF4 SLI 200/800 PD 840)	171.25
Biostar TForce P965 Deluxe (P965 200/800 PD 840)	84.69
Biostar TForce P965 Deluxe (P965 200/800 Core 2 Duo)	241.05
Gigabyte GA-965P-DS3 (P965 200/800 Core 2 Duo)	242.58
Foxconn P9657AA-8KS2H (P965 200/800 Core 2 Duo)	242.31
Gigabyte GA-945GM-S2 (945G 200/667 Core 2 Duo Onboard Video)	30.93
Gigabyte GA-945GM-S2 (945G 200/667 Core 2 Duo GeForce 7800GTX)	219.83
Epox 5P945 Pro (945P 200/667 Core 2 Duo)	223.31

There's definitely a slight slowdown because less memory bandwidth is available. It's not too big an issue, and I think that you wouldn't even notice the lower framerate.

ID Software Doom 3 1.3	Source: id Software

Doom 3 takes advantage of the latest videocard technology and pushes the processing power of the CPU to its absolute limit. At its highest setting, Ultra quality, texture sizes pass the 500MB mark which means even tomorrow's videocards will have a hard time running everything. The frame rates in the game itself are locked at 60 fps so anything above that point is wasted. Each test is run three times with the third run being recorded.

ID Software Doom 3 1.3
LQ 640x480:	FPS	Ranking
ASRock AM2V890-VSTA (K8T890 200/800 A64 5000+)	148.4
Albatron KM51PV-AM2 (GF6150 200/800 A64 5000+)	144.5
MSI K9N SLI Platinum (NF 570 SLI 200/800 A64 5000+)	144.3
Asus M2-CROSSHAIR (NF 590 SLI 200/800 A64 5000+)	141.1
Foxconn 975X7AA-8EKRS2H (975X 200/667 PD 840)	104.3
MSI P4N Diamond (NF4 SLI 200/800 PD 840)	144.3
Biostar TForce P965 Deluxe (P965 200/800 PD 840)	96.6
Biostar TForce P965 Deluxe (P965 200/800 Core 2 Duo)	205.7
Gigabyte GA-965P-DS3 (P965 200/800 Core 2 Duo)	206.7
Foxconn P9657AA-8KS2H (P965 200/800 Core 2 Duo)	205.8
Gigabyte GA-945GM-S2 (945G 200/667 Core 2 Duo Onboard Video)	18.7
Gigabyte GA-945GM-S2 (945G 200/667 Core 2 Duo GeForce 7800GTX)	193
Epox 5P945 Pro (945P 200/667 Core 2 Duo)	189.7

Doom 3 likes high bandwidth systems, the Epox 5P945 Pro definitely doesn't have as much as the P965 Express motherboards. Whether you'd notice it or not though, is a difficult question to answer.

ID Software Quake 4 1.3	Source: id Software

Quake 4 is the latest shooter from ID and is based on the Doom 3 engine. Tweaked to for more eye candy, Quake 4 promises to be tougher on videocards and systems than its predecessor was. Quake 4 also does not have a 60 fps limiter like Doom 3, with the Ultra setting, graphic textures can surpass the 500MB mark! Each test is run three times and with the third run being recorded.

ID Software Quake 4 1.3
LQ 640x480	FPS	Ranking
ASRock AM2V890-VSTA (K8T890 200/800 A64 5000+)	154.4
Albatron KM51PV-AM2 (GF6150 200/800 A64 5000+)	152.9
MSI K9N SLI Platinum (NF 570 SLI 200/800 A64 5000+)	150.5
Asus M2-CROSSHAIR (NF 590 SLI 200/800 A64 5000+)	146.4
Foxconn 975X7AA-8EKRS2H (975X 200/667 PD 840)	127.3
MSI P4N Diamond (NF4 SLI 200/800 PD 840)	150.5
Biostar TForce P965 Deluxe (P965 200/800 PD 840)	113.8
Biostar TForce P965 Deluxe (P965 200/800 Core 2 Duo)	202.8
Gigabyte GA-965P-DS3 (P965 200/800 Core 2 Duo)	202.6
Foxconn P9657AA-8KS2H (P965 200/800 Core 2 Duo)	202.4
Gigabyte GA-945GM-S2 (945G 200/667 Core 2 Duo Onboard Video)	34.1
Gigabyte GA-945GM-S2 (945G 200/667 Core 2 Duo GeForce 7800GTX)	192.7
Epox 5P945 Pro (945P 200/667 Core 2 Duo)	190

Things are much closer in the final benchmark of the day Quake 4. Despite having less memory bandwidth the Epox 5P945 Pro is able to keep up pretty well!