Radeon HD 5670 vs Radeon R9 M275X

Intro

Compare that to the Radeon R9 M275X, which has GPU clock speed of 900 MHz, and 2048 MB of GDDR5 memory set to run at 1125 MHz through a 128-bit bus. It also features 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

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

Theoretically speaking, the Radeon R9 M275X should be a bit faster than the Radeon HD 5670 overall. (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 (approximately 132%) better at 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 using high levels of AA 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: Bandwidth is the largest amount of information (measured in MB per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. 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 number of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total texture units of the card 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 in one second.

Pixel Rate: Pixel rate is the most pixels that 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 number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.