Radeon HD 7850 vs Radeon RX 5500

Intro

Compare that to the Radeon RX 5500, which features GPU clock speed of 1670 MHz, and 4096 MB of GDDR6 RAM running at 1750 MHz through a 128-bit bus. It also is made up of 1408 SPUs, 88 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7850		130 Watts
Radeon RX 5500		150 Watts
	Difference: 20 Watts (15%)

Memory Bandwidth

In theory, the Radeon RX 5500 should be much faster than the Radeon HD 7850 in general. (explain)

Radeon RX 5500		229376 MB/sec
Radeon HD 7850		153600 MB/sec
	Difference: 75776 (49%)

Texel Rate

The Radeon RX 5500 will be a lot (more or less 167%) better at texture filtering than the Radeon HD 7850. (explain)

Radeon RX 5500		146960 Mtexels/sec
Radeon HD 7850		55040 Mtexels/sec
	Difference: 91920 (167%)

Pixel Rate

The Radeon RX 5500 is a lot (approximately 94%) better at full screen anti-aliasing than the Radeon HD 7850, and also will be capable of handling higher screen resolutions better. (explain)

Radeon RX 5500		53440 Mpixels/sec
Radeon HD 7850		27520 Mpixels/sec
	Difference: 25920 (94%)

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 transferred across the external memory interface within a second. It's worked out by multiplying the bus width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.