GeForce GTX 465 vs GeForce GTX 570

Intro

Compare those specifications to the GeForce GTX 570, which uses a 40 nm design. nVidia has set the core frequency at 732 MHz. The GDDR5 RAM runs at a speed of 950 MHz on this particular model. It features 480 SPUs along with 60 TAUs and 40 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 465		200 Watts
GeForce GTX 570		219 Watts
	Difference: 19 Watts (10%)

Memory Bandwidth

The GeForce GTX 570 should in theory be a lot faster than the GeForce GTX 465 overall. (explain)

GeForce GTX 570		152000 MB/sec
GeForce GTX 465		102592 MB/sec
	Difference: 49408 (48%)

Texel Rate

The GeForce GTX 570 should be a lot (approximately 64%) better at anisotropic filtering than the GeForce GTX 465. (explain)

GeForce GTX 570		43920 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 17212 (64%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 570 is a better choice, and very much so. (explain)

GeForce GTX 570		29280 Mpixels/sec
GeForce GTX 465		19424 Mpixels/sec
	Difference: 9856 (51%)

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: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be transferred across the external memory interface in one second. It is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it should 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 high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling 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 the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core 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 many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.