Radeon HD 7950 3GB vs Radeon RX 5500

Intro

Compare that to the Radeon RX 5500, which has a clock speed of 1670 MHz and a GDDR6 memory speed of 1750 MHz. It also makes use of a 128-bit memory bus, and makes use of a 7 nm design. It is made up of 1408 SPUs, 88 TAUs, 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 3GB		200 Watts
	Difference: 50 Watts (33%)

Memory Bandwidth

The Radeon HD 7950 3GB should theoretically be a bit faster than the Radeon RX 5500 overall. (explain)

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

Texel Rate

The Radeon RX 5500 is much (approximately 64%) more effective at texture filtering than the Radeon HD 7950 3GB. (explain)

Radeon RX 5500		146960 Mtexels/sec
Radeon HD 7950 3GB		89600 Mtexels/sec
	Difference: 57360 (64%)

Pixel Rate

The Radeon RX 5500 will be a lot (about 109%) more effective at AA than the Radeon HD 7950 3GB, and also will be able to handle higher screen resolutions while still performing well. (explain)

Radeon RX 5500		53440 Mpixels/sec
Radeon HD 7950 3GB		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 (counted in megabytes per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher 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 amount of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, 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 video card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the clock speed of the card. 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 quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.