Radeon HD 7850 vs Radeon RX 580

Intro

Compare those specifications to the Radeon RX 580, which uses a 14 nm design. AMD has set the core speed at 1257 MHz. The GDDR5 RAM is set to run at a speed of 2000 MHz on this model. It features 2304 SPUs along with 144 TAUs and 32 Rasterization Operator 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.

3DMark Fire Strike Graphics Score

Radeon RX 580		13630 points
Radeon HD 7850		5200 points
	Difference: 8430 (162%)

Zcash Mining Hash Rate

Radeon RX 580		315 Sol/s
Radeon HD 7850		171 Sol/s
	Difference: 144 (84%)

Ethereum Mining Hash Rate

Radeon RX 580		28 Mh/s
Radeon HD 7850		13 Mh/s
	Difference: 15 (115%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7850		130 Watts
Radeon RX 580		185 Watts
	Difference: 55 Watts (42%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 580 should be a lot faster than the Radeon HD 7850 in general. (explain)

Radeon RX 580		262144 MB/sec
Radeon HD 7850		153600 MB/sec
	Difference: 108544 (71%)

Texel Rate

The Radeon RX 580 will be much (more or less 229%) better at texture filtering than the Radeon HD 7850. (explain)

Radeon RX 580		181008 Mtexels/sec
Radeon HD 7850		55040 Mtexels/sec
	Difference: 125968 (229%)

Pixel Rate

The Radeon RX 580 should be a lot (more or less 46%) better at anti-aliasing than the Radeon HD 7850, and also should be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon RX 580		40224 Mpixels/sec
Radeon HD 7850		27520 Mpixels/sec
	Difference: 12704 (46%)

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 max amount of data (in units of megabytes per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR memory, it should be multiplied by 2 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 AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number 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 clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units 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 rate also depends 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.