Radeon HD 6850 vs Radeon RX 460 2GB

Intro

Compare all of that to the Radeon RX 460 2GB, which has core speeds of 1090 MHz on the GPU, and 1750 MHz on the 2048 MB of GDDR5 memory. It features 896 SPUs as well as 56 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460 2GB		75 Watts
Radeon HD 6850		127 Watts
	Difference: 52 Watts (69%)

Memory Bandwidth

The Radeon HD 6850, in theory, should perform just a bit faster than the Radeon RX 460 2GB in general. (explain)

Radeon HD 6850		128000 MB/sec
Radeon RX 460 2GB		112000 MB/sec
	Difference: 16000 (14%)

Texel Rate

The Radeon RX 460 2GB should be a lot (about 64%) more effective at anisotropic filtering than the Radeon HD 6850. (explain)

Radeon RX 460 2GB		61040 Mtexels/sec
Radeon HD 6850		37200 Mtexels/sec
	Difference: 23840 (64%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon HD 6850 is a better choice, by far. (explain)

Radeon HD 6850		24800 Mpixels/sec
Radeon RX 460 2GB		17440 Mpixels/sec
	Difference: 7360 (42%)

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 information (counted in MB per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the interface width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.