Radeon HD 5750 1GB vs Radeon R9 M280X

Intro

Compare those specs to the Radeon R9 M280X, which uses a 28 nm design. AMD has clocked the core frequency at 900 MHz. The GDDR5 RAM is set to run at a frequency of 1375 MHz on this model. It features 896 SPUs as well as 56 TAUs and 16 Rasterization Operator Units.

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 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 a lot (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

The Radeon R9 M280X is quite a bit (more or less 29%) better at FSAA than the Radeon HD 5750 1GB, and also should be capable of handling higher screen resolutions without losing too much performance. (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: Bandwidth is the max amount of data (counted in MB per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at handling 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 graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines 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 output rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.