Radeon HD 5750 512MB vs Radeon R9 M295X

Intro

Compare those specs to the Radeon R9 M295X, which has GPU core speed of 750 MHz, and 4096 MB of GDDR5 memory set to run at 1375 MHz through a 256-bit bus. It also is comprised of 2048 Stream Processors, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB		86 Watts
Radeon R9 M295X		125 Watts
	Difference: 39 Watts (45%)

Memory Bandwidth

Theoretically, the Radeon R9 M295X should be a lot faster than the Radeon HD 5750 512MB in general. (explain)

Radeon R9 M295X		176000 MB/sec
Radeon HD 5750 512MB		73600 MB/sec
	Difference: 102400 (139%)

Texel Rate

The Radeon R9 M295X will be a lot (approximately 281%) better at AF than the Radeon HD 5750 512MB. (explain)

Radeon R9 M295X		96000 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 70800 (281%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 M295X is the winner, by far. (explain)

Radeon R9 M295X		24000 Mpixels/sec
Radeon HD 5750 512MB		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: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total amount 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill 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 get to the max fill rate.