Radeon HD 7870 vs Radeon RX 470 4GB

Intro

Compare all that to the Radeon RX 470 4GB, which features core clock speeds of 926 MHz on the GPU, and 1650 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs as well as 128 Texture Address Units 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.

Zcash Mining Hash Rate

Radeon RX 470 4GB		270 Sol/s
Radeon HD 7870		172 Sol/s
	Difference: 98 (57%)

Ethereum Mining Hash Rate

Radeon RX 470 4GB		27 Mh/s
Radeon HD 7870		16 Mh/s
	Difference: 11 (69%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470 4GB		120 Watts
Radeon HD 7870		175 Watts
	Difference: 55 Watts (46%)

Memory Bandwidth

The Radeon RX 470 4GB should theoretically perform quite a bit faster than the Radeon HD 7870 overall. (explain)

Radeon RX 470 4GB		211200 MB/sec
Radeon HD 7870		153600 MB/sec
	Difference: 57600 (38%)

Texel Rate

The Radeon RX 470 4GB should be much (approximately 48%) better at texture filtering than the Radeon HD 7870. (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
Radeon HD 7870		80000 Mtexels/sec
	Difference: 38528 (48%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 7870 is superior to the Radeon RX 470 4GB, but not by far. (explain)

Radeon HD 7870		32000 Mpixels/sec
Radeon RX 470 4GB		29632 Mpixels/sec
	Difference: 2368 (8%)

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 megabytes per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the video 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 maximum amount of pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. 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 output rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.