GeForce GTX 465 vs GeForce GTX 570

Intro

Compare all that to the GeForce GTX 570, which comes with a core clock speed of 732 MHz and a GDDR5 memory speed of 950 MHz. It also features a 320-bit memory bus, and uses a 40 nm design. It is made up of 480 SPUs, 60 Texture Address Units, and 40 Raster Operation 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 superior to the GeForce GTX 465 in general. (explain)

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

Texel Rate

The GeForce GTX 570 should be quite a bit (about 64%) better at texture filtering than the GeForce GTX 465. (explain)

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

Pixel Rate

The GeForce GTX 570 is quite a bit (more or less 51%) more effective at full screen anti-aliasing than the GeForce GTX 465, and should be able to handle higher resolutions without losing too much performance. (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 max amount of information (counted in megabytes per second) that can be moved over the external memory interface in a second. The number is worked out by multiplying the bus width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 number of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.