Radeon HD 7870 XT vs Radeon RX 470 4GB

Intro

Compare those specs to the Radeon RX 470 4GB, which comes with a GPU core clock speed of 926 MHz, and 4096 MB of GDDR5 memory running at 1650 MHz through a 256-bit bus. It also is comprised of 2048 SPUs, 128 TAUs, and 32 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.

Ethereum Mining Hash Rate

Radeon RX 470 4GB		27 Mh/s
Radeon HD 7870 XT		15 Mh/s
	Difference: 12 (80%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470 4GB		120 Watts
Radeon HD 7870 XT		185 Watts
	Difference: 65 Watts (54%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 470 4GB is 10% faster than the Radeon HD 7870 XT overall, because of its greater data rate. (explain)

Radeon RX 470 4GB		211200 MB/sec
Radeon HD 7870 XT		192000 MB/sec
	Difference: 19200 (10%)

Texel Rate

The Radeon RX 470 4GB will be a lot (approximately 33%) better at texture filtering than the Radeon HD 7870 XT. (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
Radeon HD 7870 XT		88800 Mtexels/sec
	Difference: 29728 (33%)

Pixel Rate

The Radeon RX 470 4GB should be a small bit (more or less 0%) more effective at full screen anti-aliasing than the Radeon HD 7870 XT, and will be able to handle higher screen resolutions better. (explain)

Radeon RX 470 4GB		29632 Mpixels/sec
Radeon HD 7870 XT		29600 Mpixels/sec
	Difference: 32 (0%)

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 (counted in MB per second) that can be transported past the external memory interface in one second. It's worked out by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster 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 are applied per second. This number is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the 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 clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.