GeForce GTX 260 vs GeForce GTX 465

Intro

Compare that to the GeForce GTX 465, which features a clock frequency of 607 MHz and a GDDR5 memory frequency of 802 MHz. It also features a 256-bit bus, and makes use of a 40 nm design. It features 352 SPUs, 44 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 260		182 Watts
GeForce GTX 465		200 Watts
	Difference: 18 Watts (10%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 260 should theoretically be a small bit better than the GeForce GTX 465 overall. (explain)

GeForce GTX 260		111888 MB/sec
GeForce GTX 465		102592 MB/sec
	Difference: 9296 (9%)

Texel Rate

The GeForce GTX 260 is much (about 38%) better at texture filtering than the GeForce GTX 465. (explain)

GeForce GTX 260		36864 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 10156 (38%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 465 is the winner, but not by far. (explain)

GeForce GTX 465		19424 Mpixels/sec
GeForce GTX 260		16128 Mpixels/sec
	Difference: 3296 (20%)

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 largest amount of information (in units of megabytes per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the interface width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher 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 amount of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.