Radeon HD 6790 vs Radeon RX 5500

Intro

Compare those specifications to the Radeon RX 5500, which features GPU core speed of 1670 MHz, and 4096 MB of GDDR6 memory set to run at 1750 MHz through a 128-bit bus. It also features 1408 Stream Processors, 88 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Theoretically speaking, the Radeon RX 5500 should be much faster than 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 will be a lot (approximately 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 is quite a bit (approximately 298%) more effective at AA than the Radeon HD 6790, and also able to handle higher resolutions better. (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: Bandwidth is the maximum amount of data (in units of megabytes per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's 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 number of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one 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 number is worked out by multiplying the amount of Raster Operations Pipelines 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 rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.