Radeon HD 6790 vs Radeon RX 5500

Intro

Compare those specifications to the Radeon RX 5500, which uses a 7 nm design. AMD has set the core frequency at 1670 MHz. The GDDR6 RAM is set to run at a frequency of 1750 MHz on this card. It features 1408 SPUs as well as 88 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Performance-wise, the Radeon RX 5500 should in theory be much superior to the Radeon HD 6790 in general. (explain)

Radeon RX 5500		229376 MB/sec
Radeon HD 6790		134400 MB/sec
	Difference: 94976 (71%)

Texel Rate

The Radeon RX 5500 is a lot (about 337%) more effective at texture filtering than the Radeon HD 6790. (explain)

Radeon RX 5500		146960 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 113360 (337%)

Pixel Rate

The Radeon RX 5500 should be much (approximately 298%) faster with regards to anti-aliasing than the Radeon HD 6790, and also capable of handling higher resolutions without losing too much performance. (explain)

Radeon RX 5500		53440 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 40000 (298%)

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 max amount of data (measured in MB per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 once 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 anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total number of 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the card's clock speed. 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 also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.