Radeon HD 5670 vs Radeon R9 M385X

Intro

Compare those specifications to the Radeon R9 M385X, which features a clock frequency of 1100 MHz and a GDDR5 memory frequency of 1500 MHz. It also uses a 128-bit memory bus, and makes use of a 28 nm design. It is made up of 896 SPUs, 56 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R9 M385X should perform quite a bit faster than the Radeon HD 5670 overall. (explain)

Radeon R9 M385X		96000 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 32000 (50%)

Texel Rate

The Radeon R9 M385X is much (approximately 297%) faster with regards to texture filtering than the Radeon HD 5670. (explain)

Radeon R9 M385X		61600 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 46100 (297%)

Pixel Rate

The Radeon R9 M385X should be quite a bit (approximately 184%) more effective at FSAA than the Radeon HD 5670, and also will be able to handle higher resolutions better. (explain)

Radeon R9 M385X		17600 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 11400 (184%)

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 maximum amount of data (measured in megabytes per second) that can be moved over the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better 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 amount of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.