Radeon HD 7790 vs Radeon RX 5500

Intro

Compare those specifications to the Radeon RX 5500, which comes with a core clock speed of 1670 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 features 1408 SPUs, 88 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7790		85 Watts
Radeon RX 5500		150 Watts
	Difference: 65 Watts (76%)

Memory Bandwidth

Theoretically, the Radeon RX 5500 should perform a lot faster than the Radeon HD 7790 in general. (explain)

Radeon RX 5500		229376 MB/sec
Radeon HD 7790		96000 MB/sec
	Difference: 133376 (139%)

Texel Rate

The Radeon RX 5500 is much (more or less 162%) faster with regards to texture filtering than the Radeon HD 7790. (explain)

Radeon RX 5500		146960 Mtexels/sec
Radeon HD 7790		56000 Mtexels/sec
	Difference: 90960 (162%)

Pixel Rate

The Radeon RX 5500 is quite a bit (more or less 234%) faster with regards to full screen anti-aliasing than the Radeon HD 7790, and should be able to handle higher resolutions without slowing down too much. (explain)

Radeon RX 5500		53440 Mpixels/sec
Radeon HD 7790		16000 Mpixels/sec
	Difference: 37440 (234%)

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 data (counted in megabytes per second) that can be transferred over the external memory interface within a second. It is worked out by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, 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 worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at 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 write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.