Radeon HD 6770 1GB vs Radeon RX 460

Intro

Compare those specifications to the Radeon RX 460, which comes with core clock speeds of 1090 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 RAM. It features 896 SPUs along with 56 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460		75 Watts
Radeon HD 6770 1GB		108 Watts
	Difference: 33 Watts (44%)

Memory Bandwidth

As far as performance goes, the Radeon RX 460 should in theory be much superior to the Radeon HD 6770 1GB in general. (explain)

Radeon RX 460		112000 MB/sec
Radeon HD 6770 1GB		67200 MB/sec
	Difference: 44800 (67%)

Texel Rate

The Radeon RX 460 will be much (more or less 70%) more effective at texture filtering than the Radeon HD 6770 1GB. (explain)

Radeon RX 460		61040 Mtexels/sec
Radeon HD 6770 1GB		36000 Mtexels/sec
	Difference: 25040 (70%)

Pixel Rate

The Radeon RX 460 is quite a bit (more or less 21%) more effective at AA than the Radeon HD 6770 1GB, and capable of handling higher screen resolutions more effectively. (explain)

Radeon RX 460		17440 Mpixels/sec
Radeon HD 6770 1GB		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: Bandwidth is the max amount of information (counted in megabytes per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the interface width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 once 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, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.