the first review is about the 7800gs AGP, recently featured here on AT NVIDIA's AGP Only GeForce 7800 GS the second review was a AT exclusive, published November 22nd, 2005 AT Exclusive Preview: The GeForce 7800 GS Hits the Scene i found this interesting because the 7800gs PCIe reference out performed it's AGP counterpart with slower clocked memory speeds. AT benched the AGP version with it's default clock speeds 375/1200mhz, while the PCIe reference was clocked at 375/1000mhz.
BF2 no AA
1600x1200..AGP 43.3 fps PCIe 44.8 fps
1920x1440..AGP 33 PCIe 39.1
F.E.A.R no AA
1600x1200..AGP 29 PCIe 33
1920x1440..AGP 21 PCIe 25
Quake 4 no AA
1600x1200..AGP 65.8 PCIe 73.9
1920x1440..AGP 48.6 PCIe 56.4
the lowest resolution chosen for the AGP version was 1280x960 for PCIe 1280x1024 was chosen, in which case the PCIe reference got better frame rates at 1280x1024 than the AGP did at 1280x960. those were the only three common benchmarks between the two reviews, in each case the PCIe reference was slighty faster. could the HSI (High Speed Interconnect), which is capable of connecting AGP and PCI Express busses together be hampering the 7800gs AGP performance?
BF2 no AA
1600x1200..AGP 43.3 fps PCIe 44.8 fps
1920x1440..AGP 33 PCIe 39.1
F.E.A.R no AA
1600x1200..AGP 29 PCIe 33
1920x1440..AGP 21 PCIe 25
Quake 4 no AA
1600x1200..AGP 65.8 PCIe 73.9
1920x1440..AGP 48.6 PCIe 56.4
the lowest resolution chosen for the AGP version was 1280x960 for PCIe 1280x1024 was chosen, in which case the PCIe reference got better frame rates at 1280x1024 than the AGP did at 1280x960. those were the only three common benchmarks between the two reviews, in each case the PCIe reference was slighty faster. could the HSI (High Speed Interconnect), which is capable of connecting AGP and PCI Express busses together be hampering the 7800gs AGP performance?
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