GeForce GTX 275 vs GeForce GTX 750

Intro

Compare all that to the GeForce GTX 750, which features a core clock frequency of 1020 MHz and a GDDR5 memory speed of 1250 MHz. It also features a 128-bit memory bus, and makes use of a 28 nm design. It is comprised of 512 SPUs, 32 Texture Address Units, and 16 Raster Operation Units.

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

Theoretically speaking, the GeForce GTX 275 should 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 will be quite a bit (about 55%) better at texture filtering than the GeForce GTX 750. (explain)

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

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 275 is superior to the GeForce GTX 750, but it probably won't make a huge difference. (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: Bandwidth is the max amount of data (in units of megabytes per second) that can be moved over the external memory interface in one second. It's worked out by multiplying the bus width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the graphics 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 most pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.