Radeon HD 7850 vs Radeon RX 470

Intro

Compare all of that to the Radeon RX 470, which features GPU clock speed of 926 MHz, and 8192 MB of GDDR5 memory running at 1650 MHz through a 256-bit bus. It also is made up of 2048 SPUs, 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.

3DMark Fire Strike Graphics Score

Radeon RX 470		11756 points
Radeon HD 7850		5200 points
	Difference: 6556 (126%)

Zcash Mining Hash Rate

Radeon RX 470		289 Sol/s
Radeon HD 7850		171 Sol/s
	Difference: 118 (69%)

Ethereum Mining Hash Rate

Radeon RX 470		26 Mh/s
Radeon HD 7850		13 Mh/s
	Difference: 13 (100%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470		120 Watts
Radeon HD 7850		130 Watts
	Difference: 10 Watts (8%)

Memory Bandwidth

Theoretically, the Radeon RX 470 should be much faster than the Radeon HD 7850 in general. (explain)

Radeon RX 470		211200 MB/sec
Radeon HD 7850		153600 MB/sec
	Difference: 57600 (38%)

Texel Rate

The Radeon RX 470 will be a lot (approximately 115%) better at texture filtering than the Radeon HD 7850. (explain)

Radeon RX 470		118528 Mtexels/sec
Radeon HD 7850		55040 Mtexels/sec
	Difference: 63488 (115%)

Pixel Rate

The Radeon RX 470 should be a little bit (more or less 8%) better at anti-aliasing than the Radeon HD 7850, and also will be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon RX 470		29632 Mpixels/sec
Radeon HD 7850		27520 Mpixels/sec
	Difference: 2112 (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: Bandwidth is the max amount of information (measured in MB per second) that can be transferred across the external memory interface in a second. It is calculated by multiplying the bus width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 once again. If 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, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.