GeForce GTX 465 vs GeForce GTX 960

Intro

Compare all of that to the GeForce GTX 960, which uses a 28 nm design. nVidia has set the core frequency at 1127 MHz. The GDDR5 memory works at a speed of 1750 MHz on this model. It features 1024 SPUs as well as 64 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 960		120 Watts
GeForce GTX 465		200 Watts
	Difference: 80 Watts (67%)

Memory Bandwidth

In theory, the GeForce GTX 960 should be 9% faster than the GeForce GTX 465 overall, due to its greater bandwidth. (explain)

GeForce GTX 960		112000 MB/sec
GeForce GTX 465		102592 MB/sec
	Difference: 9408 (9%)

Texel Rate

The GeForce GTX 960 will be quite a bit (approximately 170%) more effective at texture filtering than the GeForce GTX 465. (explain)

GeForce GTX 960		72128 Mtexels/sec
GeForce GTX 465		26708 Mtexels/sec
	Difference: 45420 (170%)

Pixel Rate

The GeForce GTX 960 should be much (about 86%) faster with regards to anti-aliasing than the GeForce GTX 465, and also should be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 960		36064 Mpixels/sec
GeForce GTX 465		19424 Mpixels/sec
	Difference: 16640 (86%)

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 transported past the external memory interface in one second. It's worked out 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 bandwidth is, 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 can be processed in one second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.