Radeon HD 7970 vs Radeon RX 460

Intro

Compare all of that to the Radeon RX 460, which comes with GPU clock speed of 1090 MHz, and 4096 MB of GDDR5 RAM set to run at 1750 MHz through a 128-bit bus. It also is made up of 896 Stream Processors, 56 TAUs, 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 7970		8225 points
Radeon RX 460		5595 points
	Difference: 2630 (47%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460		75 Watts
Radeon HD 7970		250 Watts
	Difference: 175 Watts (233%)

Memory Bandwidth

The Radeon HD 7970, in theory, should perform a lot faster than the Radeon RX 460 in general. (explain)

Radeon HD 7970		264000 MB/sec
Radeon RX 460		112000 MB/sec
	Difference: 152000 (136%)

Texel Rate

The Radeon HD 7970 is much (approximately 94%) more effective at texture filtering than the Radeon RX 460. (explain)

Radeon HD 7970		118400 Mtexels/sec
Radeon RX 460		61040 Mtexels/sec
	Difference: 57360 (94%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 7970 is a better choice, by a large margin. (explain)

Radeon HD 7970		29600 Mpixels/sec
Radeon RX 460		17440 Mpixels/sec
	Difference: 12160 (70%)

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 largest amount of data (in units of MB per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the 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 maximum amount of pixels the graphics card could possibly write 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 - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.