Radeon HD 6850 vs Radeon RX 6500 XT

Intro

Compare those specifications to the Radeon RX 6500 XT, which has a GPU core clock speed of 2200 MHz, and 4096 MB of GDDR6 memory running at 2250 MHz through a 64-bit bus. It also features 1024 Stream Processors, 64 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6500 XT		107 Watts
Radeon HD 6850		127 Watts
	Difference: 20 Watts (19%)

Memory Bandwidth

As far as performance goes, the Radeon RX 6500 XT should theoretically be a bit superior to the Radeon HD 6850 in general. (explain)

Radeon RX 6500 XT		147456 MB/sec
Radeon HD 6850		128000 MB/sec
	Difference: 19456 (15%)

Texel Rate

The Radeon RX 6500 XT should be a lot (about 278%) faster with regards to texture filtering than the Radeon HD 6850. (explain)

Radeon RX 6500 XT		140800 Mtexels/sec
Radeon HD 6850		37200 Mtexels/sec
	Difference: 103600 (278%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX 6500 XT is the winner, and very much so. (explain)

Radeon RX 6500 XT		70400 Mpixels/sec
Radeon HD 6850		24800 Mpixels/sec
	Difference: 45600 (184%)

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 (in units of megabytes per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core 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 fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.