GeForce GTX 465 vs GeForce GTX 570

Intro

Compare those specs to the GeForce GTX 570, which has core clock speeds of 732 MHz on the GPU, and 950 MHz on the 1280 MB of GDDR5 RAM. It features 480 SPUs along with 60 TAUs and 40 Rasterization Operator Units.

Display Graphs

Hide Graphs

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

As far as performance goes, the GeForce GTX 570 should theoretically be a lot better 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 will be much (approximately 64%) more effective at AF than the GeForce GTX 465. (explain)

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

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 570 is the winner, by far. (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: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster 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 amount of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out 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 output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.