Radeon HD 7850 vs Radeon RX 590

Intro

Compare those specifications to the Radeon RX 590, which comes with core speeds of 1469 MHz on the GPU, and 2000 MHz on the 8192 MB of GDDR5 memory. It features 2304 SPUs along with 144 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7850		130 Watts
Radeon RX 590		175 Watts
	Difference: 45 Watts (35%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 590 is 71% faster than the Radeon HD 7850 in general, due to its greater bandwidth. (explain)

Radeon RX 590		262144 MB/sec
Radeon HD 7850		153600 MB/sec
	Difference: 108544 (71%)

Texel Rate

The Radeon RX 590 is a lot (about 284%) faster with regards to anisotropic filtering than the Radeon HD 7850. (explain)

Radeon RX 590		211536 Mtexels/sec
Radeon HD 7850		55040 Mtexels/sec
	Difference: 156496 (284%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 590 is a better choice, by far. (explain)

Radeon RX 590		47008 Mpixels/sec
Radeon HD 7850		27520 Mpixels/sec
	Difference: 19488 (71%)

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 maximum amount of data (counted in MB per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster 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 applied per second. This is worked out by multiplying the total amount of texture units 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 applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could 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 ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.