GeForce GTX 750 vs Radeon R9 M270X

Intro

Compare that to the Radeon R9 M270X, which features GPU clock speed of 725 MHz, and 2048 MB of GDDR5 memory set to run at 1125 MHz through a 128-bit bus. It also features 640 Stream Processors, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the GeForce GTX 750 should theoretically be just a bit better than the Radeon R9 M270X in general. (explain)

GeForce GTX 750		80000 MB/sec
Radeon R9 M270X		72000 MB/sec
	Difference: 8000 (11%)

Texel Rate

The GeForce GTX 750 will be just a bit (approximately 13%) faster with regards to anisotropic filtering than the Radeon R9 M270X. (explain)

GeForce GTX 750		32640 Mtexels/sec
Radeon R9 M270X		29000 Mtexels/sec
	Difference: 3640 (13%)

Pixel Rate

The GeForce GTX 750 is much (approximately 41%) faster with regards to AA than the Radeon R9 M270X, and also capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 750		16320 Mpixels/sec
Radeon R9 M270X		11600 Mpixels/sec
	Difference: 4720 (41%)

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 largest amount of information (counted in MB per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. 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 of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.