GeForce 8800 Ultra vs GeForce GTX 465

Intro

Compare those specifications to the GeForce GTX 465, which comes with core clock speeds of 607 MHz on the GPU, and 802 MHz on the 1024 MB of GDDR5 RAM. It features 352 SPUs as well as 44 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 Ultra		171 Watts
GeForce GTX 465		200 Watts
	Difference: 29 Watts (17%)

Memory Bandwidth

In theory, the GeForce 8800 Ultra is 1% quicker than the GeForce GTX 465 in general, because of its higher bandwidth. (explain)

GeForce 8800 Ultra		103680 MB/sec
GeForce GTX 465		102592 MB/sec
	Difference: 1088 (1%)

Texel Rate

The GeForce 8800 Ultra should be a lot (about 47%) better at anisotropic filtering than the GeForce GTX 465. (explain)

GeForce 8800 Ultra		39168 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 12460 (47%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 465 is a better choice, and very much so. (explain)

GeForce GTX 465		19424 Mpixels/sec
GeForce 8800 Ultra		14688 Mpixels/sec
	Difference: 4736 (32%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.