Radeon HD 3850 X2 vs Radeon RX 6600 XT

Intro

Compare those specifications to the Radeon RX 6600 XT, which features core clock speeds of 1968 MHz on the GPU, and 2000 MHz on the 8192 MB of GDDR6 RAM. It features 2048 SPUs along with 128 TAUs and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon RX 6600 XT will be 147% quicker than the Radeon HD 3850 X2 in general, because of its higher data rate. (explain)

Radeon RX 6600 XT		262144 MB/sec
Radeon HD 3850 X2		105984 MB/sec
	Difference: 156160 (147%)

Texel Rate

The Radeon RX 6600 XT should be much (approximately 1078%) better at anisotropic filtering than the Radeon HD 3850 X2. (explain)

Radeon RX 6600 XT		251904 Mtexels/sec
Radeon HD 3850 X2		21376 Mtexels/sec
	Difference: 230528 (1078%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 6600 XT is superior to the Radeon HD 3850 X2, and very much so. (explain)

Radeon RX 6600 XT		125952 Mpixels/sec
Radeon HD 3850 X2		21376 Mpixels/sec
	Difference: 104576 (489%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better 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 in one second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the 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 number of pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.