Radeon HD 5670 vs Radeon RX 460 2GB

Intro

Compare that to the Radeon RX 460 2GB, which comes with GPU core speed of 1090 MHz, and 2048 MB of GDDR5 RAM running at 1750 MHz through a 128-bit bus. It also is comprised of 896 SPUs, 56 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670		61 Watts
Radeon RX 460 2GB		75 Watts
	Difference: 14 Watts (23%)

Memory Bandwidth

Theoretically, the Radeon RX 460 2GB should perform quite a bit faster than the Radeon HD 5670 overall. (explain)

Radeon RX 460 2GB		112000 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 48000 (75%)

Texel Rate

The Radeon RX 460 2GB is much (more or less 294%) more effective at anisotropic filtering than the Radeon HD 5670. (explain)

Radeon RX 460 2GB		61040 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 45540 (294%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 460 2GB is a better choice, by a large margin. (explain)

Radeon RX 460 2GB		17440 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 11240 (181%)

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 transferred over the external memory interface in a second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total texture units of the card by the core 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 applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines 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 fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.