GeForce GTX 275 vs GeForce GTX 750

Intro

Compare those specs to the GeForce GTX 750, which has a core clock frequency of 1020 MHz and a GDDR5 memory frequency of 1250 MHz. It also makes use of a 128-bit bus, and makes use of a 28 nm design. It features 512 SPUs, 32 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
GeForce GTX 275		219 Watts
	Difference: 164 Watts (298%)

Memory Bandwidth

The GeForce GTX 275 should in theory perform a lot faster than the GeForce GTX 750 in general. (explain)

GeForce GTX 275		127008 MB/sec
GeForce GTX 750		80000 MB/sec
	Difference: 47008 (59%)

Texel Rate

The GeForce GTX 275 should be quite a bit (more or less 55%) faster with regards to AF than the GeForce GTX 750. (explain)

GeForce GTX 275		50640 Mtexels/sec
GeForce GTX 750		32640 Mtexels/sec
	Difference: 18000 (55%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 275 is the winner, not by a very large margin though. (explain)

GeForce GTX 275		17724 Mpixels/sec
GeForce GTX 750		16320 Mpixels/sec
	Difference: 1404 (9%)

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 data (in units of MB per second) that can be transported past the external memory interface in one second. It is worked out by multiplying the bus width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure is worked out 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 card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.