GeForce GTX 750 vs Radeon R9 M290X

Intro

Compare those specifications to the Radeon R9 M290X, which features a core clock speed of 850 MHz and a GDDR5 memory speed of 1200 MHz. It also features a 256-bit memory bus, and uses a 28 nm design. It features 1280 SPUs, 80 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
Radeon R9 M290X		100 Watts
	Difference: 45 Watts (82%)

Memory Bandwidth

Theoretically, the Radeon R9 M290X should perform quite a bit faster than the GeForce GTX 750 in general. (explain)

Radeon R9 M290X		153600 MB/sec
GeForce GTX 750		80000 MB/sec
	Difference: 73600 (92%)

Texel Rate

The Radeon R9 M290X will be a lot (about 108%) more effective at AF than the GeForce GTX 750. (explain)

Radeon R9 M290X		68000 Mtexels/sec
GeForce GTX 750		32640 Mtexels/sec
	Difference: 35360 (108%)

Pixel Rate

The Radeon R9 M290X will be much (about 67%) more effective at AA than the GeForce GTX 750, and should be capable of handling higher screen resolutions better. (explain)

Radeon R9 M290X		27200 Mpixels/sec
GeForce GTX 750		16320 Mpixels/sec
	Difference: 10880 (67%)

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 max amount of data (counted in MB per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

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