Radeon HD 6950 2GB vs Radeon RX 460 2GB

Intro

Compare those specs to the Radeon RX 460 2GB, which has a GPU core clock speed of 1090 MHz, and 2048 MB of GDDR5 RAM running at 1750 MHz through a 128-bit bus. It also is made up of 896 Stream Processors, 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 2GB		75 Watts
Radeon HD 6950 2GB		200 Watts
	Difference: 125 Watts (167%)

Memory Bandwidth

Theoretically, the Radeon HD 6950 2GB should perform quite a bit faster than the Radeon RX 460 2GB overall. (explain)

Radeon HD 6950 2GB		160000 MB/sec
Radeon RX 460 2GB		112000 MB/sec
	Difference: 48000 (43%)

Texel Rate

The Radeon HD 6950 2GB will be a bit (more or less 15%) better at AF than the Radeon RX 460 2GB. (explain)

Radeon HD 6950 2GB		70400 Mtexels/sec
Radeon RX 460 2GB		61040 Mtexels/sec
	Difference: 9360 (15%)

Pixel Rate

The Radeon HD 6950 2GB should be much (approximately 47%) faster with regards to AA than the Radeon RX 460 2GB, and also will be capable of handling higher resolutions without losing too much performance. (explain)

Radeon HD 6950 2GB		25600 Mpixels/sec
Radeon RX 460 2GB		17440 Mpixels/sec
	Difference: 8160 (47%)

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 largest amount of information (in units of MB per second) that can be transported past the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.