Comparing Chipset Features
Table 1 compares the major features of the GeForce 6 and GeForce PCX GPUs. Note that clock speeds for memory and GPU are not provided because many card vendors overclock the GPU or use faster memory.
Table 1 GeForce 6/GeForce PCX GPUs for PCI-Express
GPU |
DirectX Support |
Pixel Pipelines |
Memory Type |
Memory Bus |
SLI |
Mfg Process |
6800 Ultra |
9.0c |
16 |
GDDR-3 |
256-bit |
Yes |
.13 micron |
6800 GT |
9.0c |
16 |
GDDR-3 |
256-bit |
Yes |
.13 micron |
6800 |
9.0c |
12 |
GDDR-1 |
256-bit |
No |
.13 micron |
6600GT |
9.0c |
8 |
GDDR-3 |
128-bit |
Yes |
.11 micron |
6600 |
9.0c |
8 |
GDDR-1 |
128-bit |
No |
.11 micron |
PCX 5900 |
9.0 |
8 |
GDDR-1 |
256-bit |
No |
.13 micron |
PCX 5750 |
9.0 |
4 |
GDDR-1 |
128-bit |
No |
.13 micron |
PCX 5300 |
9.0 |
4 |
GDDR-1 |
64-bit |
No |
.13 micron |
Although the PCX 5xxx series GPUs are based on nVIDIA's best graphics chips of 2003, they are far outstripped in performance by the GeForce 6 series, as indicated by a variety of benchmark tests.