Radeon HD 6770 vs Radeon RX 460 2GB

Intro

Compare those specs to the Radeon RX 460 2GB, which comes with a clock speed of 1090 MHz and a GDDR5 memory speed of 1750 MHz. It also features a 128-bit memory bus, and makes use of a 14 nm design. It is made up of 896 SPUs, 56 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460 2GB		75 Watts
Radeon HD 6770		108 Watts
	Difference: 33 Watts (44%)

Memory Bandwidth

The Radeon RX 460 2GB, in theory, should be quite a bit faster than the Radeon HD 6770 in general. (explain)

Radeon RX 460 2GB		112000 MB/sec
Radeon HD 6770		67200 MB/sec
	Difference: 44800 (67%)

Texel Rate

The Radeon RX 460 2GB will be a lot (approximately 70%) better at texture filtering than the Radeon HD 6770. (explain)

Radeon RX 460 2GB		61040 Mtexels/sec
Radeon HD 6770		36000 Mtexels/sec
	Difference: 25040 (70%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX 460 2GB is a better choice, and very much so. (explain)

Radeon RX 460 2GB		17440 Mpixels/sec
Radeon HD 6770		14400 Mpixels/sec
	Difference: 3040 (21%)

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 information (measured in MB per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. 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, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.