Radeon HD 7750 vs Radeon R9 M395X

Intro

Compare those specs to the Radeon R9 M395X, which comes with a GPU core clock speed of 723 MHz, and 4096 MB of GDDR5 RAM running at 1250 MHz through a 256-bit bus. It also is comprised of 2048 SPUs, 128 TAUs, 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 M395X		125 Watts
	Difference: 70 Watts (127%)

Memory Bandwidth

In theory, the Radeon R9 M395X should perform quite a bit faster than the Radeon HD 7750 overall. (explain)

Radeon R9 M395X		160000 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 88000 (122%)

Texel Rate

The Radeon R9 M395X will be quite a bit (about 262%) better at texture filtering than the Radeon HD 7750. (explain)

Radeon R9 M395X		92544 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 66944 (262%)

Pixel Rate

The Radeon R9 M395X will be quite a bit (approximately 81%) more effective at anti-aliasing than the Radeon HD 7750, and able to handle higher resolutions more effectively. (explain)

Radeon R9 M395X		23136 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 10336 (81%)

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 (in units of megabytes per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 number is calculated by multiplying the total number of texture units by the core 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 in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.