Radeon HD 5750 1GB vs Radeon R9 M295X

Intro

Compare that to the Radeon R9 M295X, which has core speeds of 750 MHz on the GPU, and 1375 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs as well as 128 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB		86 Watts
Radeon R9 M295X		125 Watts
	Difference: 39 Watts (45%)

Memory Bandwidth

The Radeon R9 M295X, in theory, should be a lot faster than the Radeon HD 5750 1GB overall. (explain)

Radeon R9 M295X		176000 MB/sec
Radeon HD 5750 1GB		73600 MB/sec
	Difference: 102400 (139%)

Texel Rate

The Radeon R9 M295X should be quite a bit (about 281%) more effective at AF than the Radeon HD 5750 1GB. (explain)

Radeon R9 M295X		96000 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 70800 (281%)

Pixel Rate

The Radeon R9 M295X is much (approximately 114%) better at AA than the Radeon HD 5750 1GB, and should be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon R9 M295X		24000 Mpixels/sec
Radeon HD 5750 1GB		11200 Mpixels/sec
	Difference: 12800 (114%)

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 largest amount of information (counted in MB per second) that can be moved past the external memory interface in one second. It's calculated by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to 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 potential to reach the maximum fill rate.