The Comparison - PCI Express 1.0a versus 2.0, Crossfire with 2x16 versus 2x8.
The most frequently asked question on forums these days have to do with the new PCI Express 2.0 interface. Is Intel's P35 chipset good enough, or is the X38 the better choice Compare Prices on x38 Motherboards? How much more performance can you expect from an upgrade? Do current graphics cards even really take full advantage of the PCI Express interface?
Recently, we've received some critical reader feedback saying that using an Intel 975 chipset with its "castrated" PCIe interface to test a modern dual-card HD38x0 setup could no longer be considered up-to-date. We've taken this suggestion as an opportunity to switch our lab over to newer hardware, so that all future ATI Crossfire testing will be conducted on motherboards using the X38 chipset. (Thank you so much, kind and critical readers! -Ed.). To determine what benefits this changeover actually brings us, we have run a few specific tests that focus on Crossfire resolutions that actually show a performance improvement. In the best case, we got 20 percent more 3D performance out of our Crossfire setup.
- Crossfire Up To 20 Percent Faster
- The Graphics Chips Compared
- PCI Express Connections With X16, X8 And X4
- Crossfire X8 + X8 Versus X16 + X16
- Going From PCI Express 1.0a To 2.0
- Benchmark Results
- Call Of Duty 4
- Doom 3
- Half Life 2 Episode 2
- Microsoft Flight Simulator X SP1
- World In Conflict
- Conclusion - Switching To PCI Express 2.0 Yields No Improvement