Radeon HD 7950 vs Radeon RX 460

Intro

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

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon HD 7950		7731 points
Radeon RX 460		5595 points
	Difference: 2136 (38%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460		75 Watts
Radeon HD 7950		200 Watts
	Difference: 125 Watts (167%)

Memory Bandwidth

In theory, the Radeon HD 7950 should be 114% quicker than the Radeon RX 460 overall, because of its greater bandwidth. (explain)

Radeon HD 7950		240000 MB/sec
Radeon RX 460		112000 MB/sec
	Difference: 128000 (114%)

Texel Rate

The Radeon HD 7950 is a lot (more or less 47%) faster with regards to anisotropic filtering than the Radeon RX 460. (explain)

Radeon HD 7950		89600 Mtexels/sec
Radeon RX 460		61040 Mtexels/sec
	Difference: 28560 (47%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 7950 is a better choice, by far. (explain)

Radeon HD 7950		25600 Mpixels/sec
Radeon RX 460		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 maximum amount of data (in units of MB per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

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