GeForce GTX 465 vs GeForce GTX 590

Intro

Compare that to the GeForce GTX 590, which features clock speeds of 607 MHz on the GPU, and 855 MHz on the 1536 MB of GDDR5 memory. It features 512 SPUs as well as 64 Texture Address Units and 48 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 465		200 Watts
GeForce GTX 590		365 Watts
	Difference: 165 Watts (83%)

Memory Bandwidth

The GeForce GTX 590, in theory, should be much faster than the GeForce GTX 465 overall. (explain)

GeForce GTX 590		328320 MB/sec
GeForce GTX 465		102592 MB/sec
	Difference: 225728 (220%)

Texel Rate

The GeForce GTX 590 should be a lot (approximately 191%) better at AF than the GeForce GTX 465. (explain)

GeForce GTX 590		77696 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 50988 (191%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 590 is superior to the GeForce GTX 465, by far. (explain)

GeForce GTX 590		58272 Mpixels/sec
GeForce GTX 465		19424 Mpixels/sec
	Difference: 38848 (200%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in MB per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR memory, 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 AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory per 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 - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.