Radeon HD 5750 512MB vs Radeon R9 M270X

Intro

Compare those specs to the Radeon R9 M270X, which makes use of a 28 nm design. AMD has set the core frequency at 725 MHz. The GDDR5 RAM runs at a speed of 1125 MHz on this card. It features 640 SPUs as well as 40 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 5750 512MB should perform a small bit faster than the Radeon R9 M270X in general. (explain)

Radeon HD 5750 512MB		73600 MB/sec
Radeon R9 M270X		72000 MB/sec
	Difference: 1600 (2%)

Texel Rate

The Radeon R9 M270X should be a little bit (more or less 15%) more effective at AF than the Radeon HD 5750 512MB. (explain)

Radeon R9 M270X		29000 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 3800 (15%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 M270X is superior to the Radeon HD 5750 512MB, though only just barely. (explain)

Radeon R9 M270X		11600 Mpixels/sec
Radeon HD 5750 512MB		11200 Mpixels/sec
	Difference: 400 (4%)

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 max amount of data (counted in MB per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 applied per second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.