Radeon HD 4670 512MB vs Radeon R7 M260

Intro

Compare those specs to the Radeon R7 M260, which uses a 28 nm design. AMD has set the core speed at 715 MHz. The DDR3 RAM runs at a frequency of 1000 MHz on this particular card. It features 384 SPUs along with 24 TAUs and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon HD 4670 512MB should theoretically be much superior to the Radeon R7 M260 in general. (explain)

Radeon HD 4670 512MB		32000 MB/sec
Radeon R7 M260		16000 MB/sec
	Difference: 16000 (100%)

Texel Rate

The Radeon HD 4670 512MB should be a lot (more or less 40%) more effective at texture filtering than the Radeon R7 M260. (explain)

Radeon HD 4670 512MB		24000 Mtexels/sec
Radeon R7 M260		17160 Mtexels/sec
	Difference: 6840 (40%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 4670 512MB is the winner, not by a very large margin though. (explain)

Radeon HD 4670 512MB		6000 Mpixels/sec
Radeon R7 M260		5720 Mpixels/sec
	Difference: 280 (5%)

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 (in units of MB per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.