GeForce GTX 460 2GB vs GeForce GTX 465

Intro

Compare all that to the GeForce GTX 465, which features core clock speeds of 607 MHz on the GPU, and 802 MHz on the 1024 MB of GDDR5 RAM. It features 352 SPUs along with 44 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 2GB		160 Watts
GeForce GTX 465		200 Watts
	Difference: 40 Watts (25%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 460 2GB is 12% faster than the GeForce GTX 465 in general, due to its higher bandwidth. (explain)

GeForce GTX 460 2GB		115200 MB/sec
GeForce GTX 465		102592 MB/sec
	Difference: 12608 (12%)

Texel Rate

The GeForce GTX 460 2GB will be quite a bit (about 42%) more effective at texture filtering than the GeForce GTX 465. (explain)

GeForce GTX 460 2GB		37800 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 11092 (42%)

Pixel Rate

The GeForce GTX 460 2GB should be a small bit (approximately 11%) faster with regards to anti-aliasing than the GeForce GTX 465, and also will be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 460 2GB		21600 Mpixels/sec
GeForce GTX 465		19424 Mpixels/sec
	Difference: 2176 (11%)

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 max amount of data (counted in MB per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.