Radeon HD 5750 1GB vs Radeon R9 M275X

Intro

Compare all of that to the Radeon R9 M275X, which features core speeds of 900 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 memory. It features 640 SPUs as well as 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M275X		50 Watts
Radeon HD 5750 1GB		86 Watts
	Difference: 36 Watts (72%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5750 1GB should be a small bit faster than the Radeon R9 M275X overall. (explain)

Radeon HD 5750 1GB		73600 MB/sec
Radeon R9 M275X		72000 MB/sec
	Difference: 1600 (2%)

Texel Rate

The Radeon R9 M275X is a lot (more or less 43%) more effective at texture filtering than the Radeon HD 5750 1GB. (explain)

Radeon R9 M275X		36000 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 10800 (43%)

Pixel Rate

The Radeon R9 M275X is quite a bit (about 29%) more effective at FSAA than the Radeon HD 5750 1GB, and should be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon R9 M275X		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 (measured in megabytes per second) that can be transferred past the external memory interface in a second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total amount of 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 processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units 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 output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.