Radeon HD 7950 vs Radeon RX 5500

Intro

Compare those specs to the Radeon RX 5500, which features GPU clock 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 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500		150 Watts
Radeon HD 7950		200 Watts
	Difference: 50 Watts (33%)

Memory Bandwidth

The Radeon HD 7950, in theory, should be a small bit faster than the Radeon RX 5500 overall. (explain)

Radeon HD 7950		240000 MB/sec
Radeon RX 5500		229376 MB/sec
	Difference: 10624 (5%)

Texel Rate

The Radeon RX 5500 is a lot (more or less 64%) better at AF than the Radeon HD 7950. (explain)

Radeon RX 5500		146960 Mtexels/sec
Radeon HD 7950		89600 Mtexels/sec
	Difference: 57360 (64%)

Pixel Rate

The Radeon RX 5500 should be quite a bit (approximately 109%) better at AA than the Radeon HD 7950, and will be capable of handling higher screen resolutions better. (explain)

Radeon RX 5500		53440 Mpixels/sec
Radeon HD 7950		25600 Mpixels/sec
	Difference: 27840 (109%)

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 megabytes per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied 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 better this number, the better the 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 graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.