GeForce GTX 465 vs GeForce GTX 560

Intro

Compare those specifications to the GeForce GTX 560, which features a GPU core clock speed of 810 MHz, and 1024 MB of GDDR5 memory running at 1001 MHz through a 256-bit bus. It also features 336 SPUs, 56 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560		150 Watts
GeForce GTX 465		200 Watts
	Difference: 50 Watts (33%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 560 should be much faster than the GeForce GTX 465 in general. (explain)

GeForce GTX 560		128128 MB/sec
GeForce GTX 465		102592 MB/sec
	Difference: 25536 (25%)

Texel Rate

The GeForce GTX 560 should be a lot (more or less 70%) faster with regards to anisotropic filtering than the GeForce GTX 465. (explain)

GeForce GTX 560		45360 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 18652 (70%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 560 is a better choice, by a large margin. (explain)

GeForce GTX 560		25920 Mpixels/sec
GeForce GTX 465		19424 Mpixels/sec
	Difference: 6496 (33%)

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 (measured in MB per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total texture units of the card by the core 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 processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends 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.