Radeon HD 3690/3830 vs Radeon RX 5500 XT

Intro

Compare those specs to the Radeon RX 5500 XT, which has clock speeds of 1717 MHz on the GPU, and 1750 MHz on the 8192 MB of GDDR6 memory. It features 1408 SPUs as well as 88 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 3690/3830		75 Watts
Radeon RX 5500 XT		130 Watts
	Difference: 55 Watts (73%)

Memory Bandwidth

In theory, the Radeon RX 5500 XT will be 766% quicker than the Radeon HD 3690/3830 overall, due to its higher data rate. (explain)

Radeon RX 5500 XT		229376 MB/sec
Radeon HD 3690/3830		26496 MB/sec
	Difference: 202880 (766%)

Texel Rate

The Radeon RX 5500 XT should be quite a bit (approximately 1314%) faster with regards to AF than the Radeon HD 3690/3830. (explain)

Radeon RX 5500 XT		151096 Mtexels/sec
Radeon HD 3690/3830		10688 Mtexels/sec
	Difference: 140408 (1314%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 5500 XT is the winner, by a large margin. (explain)

Radeon RX 5500 XT		54944 Mpixels/sec
Radeon HD 3690/3830		10688 Mpixels/sec
	Difference: 44256 (414%)

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 maximum amount of information (counted in megabytes per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total texture units 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 applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The number 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 drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.