Radeon R9 285 vs Radeon RX 5500

Intro

Compare those specs to the Radeon RX 5500, which comes with GPU core speed of 1670 MHz, and 4096 MB of GDDR6 memory running at 1750 MHz through a 128-bit bus. It also is comprised of 1408 SPUs, 88 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500		150 Watts
Radeon R9 285		190 Watts
	Difference: 40 Watts (27%)

Memory Bandwidth

The Radeon RX 5500, in theory, should perform quite a bit faster than the Radeon R9 285 overall. (explain)

Radeon RX 5500		229376 MB/sec
Radeon R9 285		176000 MB/sec
	Difference: 53376 (30%)

Texel Rate

The Radeon RX 5500 will be a lot (approximately 43%) faster with regards to texture filtering than the Radeon R9 285. (explain)

Radeon RX 5500		146960 Mtexels/sec
Radeon R9 285		102816 Mtexels/sec
	Difference: 44144 (43%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 5500 is a better choice, by a large margin. (explain)

Radeon RX 5500		53440 Mpixels/sec
Radeon R9 285		29376 Mpixels/sec
	Difference: 24064 (82%)

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 (measured in megabytes per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics 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 most pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.