Radeon HD 5750 1GB vs Radeon R9 M280X

Intro

Compare those specs to the Radeon R9 M280X, which comes with GPU clock speed of 900 MHz, and 4096 MB of GDDR5 memory running at 1375 MHz through a 128-bit bus. It also is comprised of 896 Stream Processors, 56 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M280X		75 Watts
Radeon HD 5750 1GB		86 Watts
	Difference: 11 Watts (15%)

Memory Bandwidth

The Radeon R9 M280X should theoretically perform just a bit faster than the Radeon HD 5750 1GB in general. (explain)

Radeon R9 M280X		88000 MB/sec
Radeon HD 5750 1GB		73600 MB/sec
	Difference: 14400 (20%)

Texel Rate

The Radeon R9 M280X is quite a bit (about 100%) faster with regards to AF than the Radeon HD 5750 1GB. (explain)

Radeon R9 M280X		50400 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 25200 (100%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 M280X is superior to the Radeon HD 5750 1GB, and very much so. (explain)

Radeon R9 M280X		14400 Mpixels/sec
Radeon HD 5750 1GB		11200 Mpixels/sec
	Difference: 3200 (29%)

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 megabytes per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.