Radeon HD 7870 XT vs Radeon RX 480 4GB

Intro

Compare all that to the Radeon RX 480 4GB, which features GPU clock speed of 1120 MHz, and 4096 MB of GDDR5 RAM running at 1750 MHz through a 256-bit bus. It also features 2304 SPUs, 144 TAUs, and 32 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.

Ethereum Mining Hash Rate

Radeon RX 480 4GB		25 Mh/s
Radeon HD 7870 XT		15 Mh/s
	Difference: 10 (67%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 480 4GB		150 Watts
Radeon HD 7870 XT		185 Watts
	Difference: 35 Watts (23%)

Memory Bandwidth

In theory, the Radeon RX 480 4GB should perform just a bit faster than the Radeon HD 7870 XT overall. (explain)

Radeon RX 480 4GB		229376 MB/sec
Radeon HD 7870 XT		192000 MB/sec
	Difference: 37376 (19%)

Texel Rate

The Radeon RX 480 4GB will be quite a bit (more or less 82%) faster with regards to AF than the Radeon HD 7870 XT. (explain)

Radeon RX 480 4GB		161280 Mtexels/sec
Radeon HD 7870 XT		88800 Mtexels/sec
	Difference: 72480 (82%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 480 4GB is a better choice, by a large margin. (explain)

Radeon RX 480 4GB		35840 Mpixels/sec
Radeon HD 7870 XT		29600 Mpixels/sec
	Difference: 6240 (21%)

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 information (counted in megabytes per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the 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 amount of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka 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 - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.