GeForce GTX 750 vs Radeon R9 M280X

Intro

Compare all of that to the Radeon R9 M280X, which comes with a clock frequency of 900 MHz and a GDDR5 memory frequency of 1375 MHz. It also uses a 128-bit bus, and makes use of a 28 nm design. It is comprised of 896 SPUs, 56 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
Radeon R9 M280X		75 Watts
	Difference: 20 Watts (36%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 M280X is 10% quicker than the GeForce GTX 750 in general, because of its higher bandwidth. (explain)

Radeon R9 M280X		88000 MB/sec
GeForce GTX 750		80000 MB/sec
	Difference: 8000 (10%)

Texel Rate

The Radeon R9 M280X is much (approximately 54%) faster with regards to texture filtering than the GeForce GTX 750. (explain)

Radeon R9 M280X		50400 Mtexels/sec
GeForce GTX 750		32640 Mtexels/sec
	Difference: 17760 (54%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 750 is a better choice, though not by far. (explain)

GeForce GTX 750		16320 Mpixels/sec
Radeon R9 M280X		14400 Mpixels/sec
	Difference: 1920 (13%)

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 information (counted in megabytes per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, 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 texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, 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 maximum amount of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core 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 quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.