GeForce 8800 GT 1GB vs GeForce GTX 465

Intro

Compare those specifications to the GeForce GTX 465, which features a clock speed of 607 MHz and a GDDR5 memory frequency of 802 MHz. It also makes use of a 256-bit bus, and uses a 40 nm design. It features 352 SPUs, 44 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 1GB		105 Watts
GeForce GTX 465		200 Watts
	Difference: 95 Watts (90%)

Memory Bandwidth

In theory, the GeForce GTX 465 should perform quite a bit faster than the GeForce 8800 GT 1GB overall. (explain)

GeForce GTX 465		102592 MB/sec
GeForce 8800 GT 1GB		57600 MB/sec
	Difference: 44992 (78%)

Texel Rate

The GeForce 8800 GT 1GB is quite a bit (more or less 26%) faster with regards to texture filtering than the GeForce GTX 465. (explain)

GeForce 8800 GT 1GB		33600 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 6892 (26%)

Pixel Rate

The GeForce GTX 465 should be much (about 102%) faster with regards to anti-aliasing than the GeForce 8800 GT 1GB, and also capable of handling higher resolutions more effectively. (explain)

GeForce GTX 465		19424 Mpixels/sec
GeForce 8800 GT 1GB		9600 Mpixels/sec
	Difference: 9824 (102%)

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 largest amount of data (counted in MB per second) that can be transferred past the external memory interface in a second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as 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, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.