Radeon HD 5750 512MB vs Radeon R7 M260X

Intro

Compare all that to the Radeon R7 M260X, which features a core clock frequency of 825 MHz and a GDDR5 memory speed of 1000 MHz. It also features a 128-bit memory bus, and makes use of a 28 nm design. It is made up of 384 SPUs, 24 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 5750 512MB will be 15% faster than the Radeon R7 M260X in general, because of its higher data rate. (explain)

Radeon HD 5750 512MB		73600 MB/sec
Radeon R7 M260X		64000 MB/sec
	Difference: 9600 (15%)

Texel Rate

The Radeon HD 5750 512MB will be quite a bit (approximately 27%) more effective at texture filtering than the Radeon R7 M260X. (explain)

Radeon HD 5750 512MB		25200 Mtexels/sec
Radeon R7 M260X		19800 Mtexels/sec
	Difference: 5400 (27%)

Pixel Rate

The Radeon HD 5750 512MB should be a lot (about 70%) faster with regards to full screen anti-aliasing than the Radeon R7 M260X, and also should be capable of handling higher screen resolutions better. (explain)

Radeon HD 5750 512MB		11200 Mpixels/sec
Radeon R7 M260X		6600 Mpixels/sec
	Difference: 4600 (70%)

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 (in units of MB per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the video 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 number of pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.