Radeon HD 5750 1GB vs Radeon R9 M270X

Intro

Compare those specs to the Radeon R9 M270X, which features GPU clock speed of 725 MHz, and 2048 MB of GDDR5 RAM set to run at 1125 MHz through a 128-bit bus. It also features 640 Stream Processors, 40 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 5750 1GB should be 2% quicker than the Radeon R9 M270X overall, because of its higher bandwidth. (explain)

Radeon HD 5750 1GB		73600 MB/sec
Radeon R9 M270X		72000 MB/sec
	Difference: 1600 (2%)

Texel Rate

The Radeon R9 M270X will be a little bit (more or less 15%) faster with regards to texture filtering than the Radeon HD 5750 1GB. (explain)

Radeon R9 M270X		29000 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 3800 (15%)

Pixel Rate

The Radeon R9 M270X will be just a bit (more or less 4%) more effective at full screen anti-aliasing than the Radeon HD 5750 1GB, and capable of handling higher screen resolutions better. (explain)

Radeon R9 M270X		11600 Mpixels/sec
Radeon HD 5750 1GB		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 largest amount of information (counted in MB per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.