It's how fast the the graphics card is that will decide if the PCIe port becomes a bottleneck or not. The HD4870x2 have twice the power of a single HD4870, and therefore demands alot more of the PCIe port in use. I do infact believe, that the P35's 16x PCIe 1.1 port with lesser speccs and half the bandwidth of a 16x PCIe 2.0, becomes a bottleneck when paired with a HD4870x2.
I can not prove this, since I do not have all the hardware to test this, but every review I have seen so far with a HD4870x2 on a P35 motherboard scores alot worse compared to the reviews using x38/x48/P45. Some tests show little difference, but many of the tests shows severely crippled performance......
I can not prove this, since I do not have all the hardware to test this, but every review I have seen so far with a HD4870x2 on a P35 motherboard scores alot worse compared to the reviews using x38/x48/P45. Some tests show little difference, but many of the tests shows severely crippled performance......
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