Radeon HD 7950 3GB vs Radeon RX 5500 XT

Intro

Compare all of that to the Radeon RX 5500 XT, which features a clock speed of 1717 MHz and a GDDR6 memory speed of 1750 MHz. It also makes use of a 128-bit memory bus, and uses a 7 nm design. It is comprised of 1408 SPUs, 88 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500 XT		130 Watts
Radeon HD 7950 3GB		200 Watts
	Difference: 70 Watts (54%)

Memory Bandwidth

Performance-wise, the Radeon HD 7950 3GB should in theory be a little bit better than the Radeon RX 5500 XT overall. (explain)

Radeon HD 7950 3GB		240000 MB/sec
Radeon RX 5500 XT		229376 MB/sec
	Difference: 10624 (5%)

Texel Rate

The Radeon RX 5500 XT should be a lot (about 69%) faster with regards to anisotropic filtering than the Radeon HD 7950 3GB. (explain)

Radeon RX 5500 XT		151096 Mtexels/sec
Radeon HD 7950 3GB		89600 Mtexels/sec
	Difference: 61496 (69%)

Pixel Rate

The Radeon RX 5500 XT should be quite a bit (more or less 115%) faster with regards to full screen anti-aliasing than the Radeon HD 7950 3GB, and also able to handle higher resolutions better. (explain)

Radeon RX 5500 XT		54944 Mpixels/sec
Radeon HD 7950 3GB		25600 Mpixels/sec
	Difference: 29344 (115%)

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 MB per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the 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 figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, 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 can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.