chuckula wrote:2. If the slot is x16 both physically and electrically (meaning the slot is the same physical length as the connector on the card AND there are actually electrical connections to the PCIe hub for all 16 lanes), then PCIe 1.0 won't hurt game performance by a huge amount.
chuckula wrote:3. BUT: If you only have PCIe 1.0, then you are likely dealing with a very old system [the 5 year old Core 2 I replaced last year was already on PCIe 2.0], so adding in a new high-end video card may end up bottlenecking on a slower component like the CPU. A low to mid-range modern GPU (roughly $150 max price) should give you a noticeable boost in 3D games, but don't expect miracles on an old machine.
Yan wrote:Does this answer the question? "x16 running at x16".
jihadjoe wrote:Makes next to no difference, even with the highest-end GPUs.
http://www.pugetsystems.com/labs/articl ... 80pResults
PCIe 1.1 x16 = PCIe 2.0 x8, and as you can see there is little to no difference even compared to PCIe 3.0 x16
More tests, including Titan SLI @ 4k in the link.
Yan wrote:Are these synthetic tests really that useless? Or is what they measure actually unrelated to the video quality I observe?
Real Life Performance Comparison
The rating the Video Card’s are given here represents their peak performance for the type of load generated by the tests and will not necessarily match the real world performance with any specific software application or game.
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