GeForce GTX 275 vs GeForce GTX 960

Intro

Compare all that to the GeForce GTX 960, which comes with a GPU core clock speed of 1127 MHz, and 2048 MB of GDDR5 memory set to run at 1750 MHz through a 128-bit bus. It also is comprised of 1024 SPUs, 64 TAUs, 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 275		219 Watts
	Difference: 99 Watts (83%)

Memory Bandwidth

In theory, the GeForce GTX 275 is 13% quicker than the GeForce GTX 960 overall, because of its greater bandwidth. (explain)

GeForce GTX 275		127008 MB/sec
GeForce GTX 960		112000 MB/sec
	Difference: 15008 (13%)

Texel Rate

The GeForce GTX 960 is a lot (about 42%) more effective at AF than the GeForce GTX 275. (explain)

GeForce GTX 960		72128 Mtexels/sec
GeForce GTX 275		50640 Mtexels/sec
	Difference: 21488 (42%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 960 is a better choice, by a large margin. (explain)

GeForce GTX 960		36064 Mpixels/sec
GeForce GTX 275		17724 Mpixels/sec
	Difference: 18340 (103%)

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 maximum amount of information (measured in megabytes per second) that can be moved over the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory speed. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the video 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 amount of pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output 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 reach the maximum fill rate.