Radeon HD 7750 vs Radeon R9 M295X

Intro

Compare those specifications to the Radeon R9 M295X, which comes with a core clock frequency of 750 MHz and a GDDR5 memory speed of 1375 MHz. It also features a 256-bit memory bus, and uses a 28 nm design. It features 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750		55 Watts
Radeon R9 M295X		125 Watts
	Difference: 70 Watts (127%)

Memory Bandwidth

The Radeon R9 M295X should in theory perform quite a bit faster than the Radeon HD 7750 overall. (explain)

Radeon R9 M295X		176000 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 104000 (144%)

Texel Rate

The Radeon R9 M295X is a lot (more or less 275%) faster with regards to AF than the Radeon HD 7750. (explain)

Radeon R9 M295X		96000 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 70400 (275%)

Pixel Rate

The Radeon R9 M295X will be a lot (approximately 88%) better at AA than the Radeon HD 7750, and also will be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon R9 M295X		24000 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 11200 (88%)

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 data (in units of megabytes per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one 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 the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.