GeForce GTX 750 vs Radeon R9 M295X

Intro

Compare those specifications to the Radeon R9 M295X, which comes with GPU clock speed of 750 MHz, and 4096 MB of GDDR5 RAM set to run at 1375 MHz through a 256-bit bus. It also is made up of 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
Radeon R9 M295X		125 Watts
	Difference: 70 Watts (127%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 M295X should be much faster than the GeForce GTX 750 in general. (explain)

Radeon R9 M295X		176000 MB/sec
GeForce GTX 750		80000 MB/sec
	Difference: 96000 (120%)

Texel Rate

The Radeon R9 M295X is much (more or less 194%) better at AF than the GeForce GTX 750. (explain)

Radeon R9 M295X		96000 Mtexels/sec
GeForce GTX 750		32640 Mtexels/sec
	Difference: 63360 (194%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 M295X is the winner, by far. (explain)

Radeon R9 M295X		24000 Mpixels/sec
GeForce GTX 750		16320 Mpixels/sec
	Difference: 7680 (47%)

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 (measured in MB per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the clock 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 output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.