Enjoy crisp, clear images with this PNY Technologies GTX 730 PCI Express 2.0 graphics card that features NVIDIA PureVideo HD technology and 1GB DDR3 memory for optimal performance. HDMI output provides reliable high-definition connectivity.
I have an IBM X3650 Model 7979, which only has PCIe x8 slots. Most of those are actually only four lanes, providing 10W-- and are half-height slots as well. The two that fully eight lane slots can accomodate only single-slot cards. This brings me to why no other PCIe x8 graphics cards would work-- there were many that claimed to be single-slot width but had monstrous heatsinks that pushed well into the next slot's space-- and on a server whose riser card is such that the riser's case, and the computer's actual case, would need to be cut to accomodate the heatsink, or if the other slot were used, the heatsink would have to push through the planar!
How's the performance? It's pretty darn fantastic. Completely blows away the PCIe x1 HD6450 that I got tired of living with (I picked it because at the time it seemed decent, and it had 2GB on it). 3DMark returned some decent scores, and even in the Firestrike demo, I actually get frames per second-- not seconds per frame.
Remember, most of these very small form-factor cards are only PCIe x1. The best chipsets are going to be severely hampered by such a narrow bus connection. If you've got a system that has PCIe x16 slots, chances are, they're also going to have room to install a full-height, full-length, double-width card. This card is for someone with an old server system who just doesn't have the time to really sit down and build a brand-new system out of hand-picked components.
Pros: Genuinely single-slot width. Cons: None so far