Radeon HD 5670 vs Radeon R9 M275X

Intro

Compare those specifications to the Radeon R9 M275X, which has a clock speed of 900 MHz and a GDDR5 memory speed of 1125 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It is comprised of 640 SPUs, 40 Texture Address Units, 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 5670		61 Watts
	Difference: 11 Watts (22%)

Memory Bandwidth

The Radeon R9 M275X, in theory, should perform a small bit faster than the Radeon HD 5670 in general. (explain)

Radeon R9 M275X		72000 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 8000 (13%)

Texel Rate

The Radeon R9 M275X should be much (about 132%) faster with regards to AF than the Radeon HD 5670. (explain)

Radeon R9 M275X		36000 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 20500 (132%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 M275X is superior to the Radeon HD 5670, by far. (explain)

Radeon R9 M275X		14400 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 8200 (132%)

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 data (measured in MB per second) that can be transferred past the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better 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 texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs 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 is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.