GeForce GTX 750 Ti vs Radeon R9 M275X

Intro

Compare those specifications to the Radeon R9 M275X, which comes with a clock speed of 900 MHz and a GDDR5 memory frequency of 1125 MHz. It also uses a 128-bit bus, and makes use of a 28 nm design. It is made up of 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M275X		50 Watts
GeForce GTX 750 Ti		60 Watts
	Difference: 10 Watts (20%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 750 Ti should be a bit faster than the Radeon R9 M275X overall. (explain)

GeForce GTX 750 Ti		86400 MB/sec
Radeon R9 M275X		72000 MB/sec
	Difference: 14400 (20%)

Texel Rate

The GeForce GTX 750 Ti is a little bit (about 13%) more effective at anisotropic filtering than the Radeon R9 M275X. (explain)

GeForce GTX 750 Ti		40800 Mtexels/sec
Radeon R9 M275X		36000 Mtexels/sec
	Difference: 4800 (13%)

Pixel Rate

The GeForce GTX 750 Ti should be a small bit (approximately 13%) more effective at FSAA than the Radeon R9 M275X, and capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 750 Ti		16320 Mpixels/sec
Radeon R9 M275X		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: Memory bandwidth is the max amount of data (in units of MB per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at 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 that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.