Radeon HD 5670 vs Radeon R7 260X

Intro

Compare those specs to the Radeon R7 260X, which comes with a GPU core clock speed of 1100 MHz, and 2048 MB of GDDR5 memory running at 1625 MHz through a 128-bit bus. It also is made up of 896 SPUs, 56 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670		61 Watts
Radeon R7 260X		115 Watts
	Difference: 54 Watts (89%)

Memory Bandwidth

In theory, the Radeon R7 260X should be 63% faster than the Radeon HD 5670 overall, due to its greater bandwidth. (explain)

Radeon R7 260X		104000 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 40000 (63%)

Texel Rate

The Radeon R7 260X is a lot (more or less 297%) faster with regards to AF than the Radeon HD 5670. (explain)

Radeon R7 260X		61600 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 46100 (297%)

Pixel Rate

The Radeon R7 260X is much (more or less 184%) more effective at full screen anti-aliasing than the Radeon HD 5670, and will be able to handle higher screen resolutions more effectively. (explain)

Radeon R7 260X		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: Bandwidth is the max amount of data (counted in MB per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 processed per second. This is calculated 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 in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.