GeForce GTX 460 vs GeForce GTX 465

Intro

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

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460		150 Watts
GeForce GTX 465		200 Watts
	Difference: 50 Watts (33%)

Memory Bandwidth

Performance-wise, the GeForce GTX 465 should theoretically be a little bit better than the GeForce GTX 460 in general. (explain)

GeForce GTX 465		102592 MB/sec
GeForce GTX 460		86400 MB/sec
	Difference: 16192 (19%)

Texel Rate

The GeForce GTX 460 will be much (more or less 42%) more effective at AF than the GeForce GTX 465. (explain)

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

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 465 is the winner, but not by far. (explain)

GeForce GTX 465		19424 Mpixels/sec
GeForce GTX 460		16200 Mpixels/sec
	Difference: 3224 (20%)

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 information (in units of megabytes per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.