Radeon HD 7950 vs Radeon RX 460

Intro

Compare all of that to the Radeon RX 460, which features a GPU core clock speed of 1090 MHz, and 4096 MB of GDDR5 RAM running at 1750 MHz through a 128-bit bus. It also is made up of 896 SPUs, 56 TAUs, and 16 Raster Operation Units.

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

As far as performance goes, the Radeon HD 7950 should theoretically be quite a bit superior to the Radeon RX 460 in general. (explain)

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

Texel Rate

The Radeon HD 7950 should be a lot (about 47%) more effective at AF than the Radeon RX 460. (explain)

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

Pixel Rate

The Radeon HD 7950 will be much (about 47%) faster with regards to FSAA than the Radeon RX 460, and will be able to handle higher resolutions while still performing well. (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 largest amount of data (in units of MB per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's 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 applied per second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the card will be at handling 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 record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.