GeForce 8800 Ultra vs GeForce GTX 465

Intro

Compare those specifications to the GeForce GTX 465, which has a core clock frequency of 607 MHz and a GDDR5 memory frequency of 802 MHz. It also features a 256-bit bus, and uses a 40 nm design. It features 352 SPUs, 44 TAUs, and 32 Raster Operation Units.

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

The GeForce 8800 Ultra, in theory, should perform just a bit faster than the GeForce GTX 465 overall. (explain)

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

Texel Rate

The GeForce 8800 Ultra will be a lot (about 47%) more effective at AF than the GeForce GTX 465. (explain)

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

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 465 is a better choice, by a large margin. (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: Bandwidth is the maximum amount of data (counted in MB per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs 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 many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.