Radeon HD 5870 vs Radeon RX 6500 XT

Intro

Compare all of that to the Radeon RX 6500 XT, which has a core clock speed of 2200 MHz and a GDDR6 memory frequency of 2250 MHz. It also features a 64-bit bus, and uses a 6 nm design. It is comprised of 1024 SPUs, 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 5870		188 Watts
	Difference: 81 Watts (76%)

Memory Bandwidth

The Radeon HD 5870 should theoretically perform a bit faster than the Radeon RX 6500 XT in general. (explain)

Radeon HD 5870		153600 MB/sec
Radeon RX 6500 XT		147456 MB/sec
	Difference: 6144 (4%)

Texel Rate

The Radeon RX 6500 XT will be quite a bit (approximately 107%) faster with regards to anisotropic filtering than the Radeon HD 5870. (explain)

Radeon RX 6500 XT		140800 Mtexels/sec
Radeon HD 5870		68000 Mtexels/sec
	Difference: 72800 (107%)

Pixel Rate

The Radeon RX 6500 XT should be a lot (more or less 159%) better at FSAA than the Radeon HD 5870, and also will be able to handle higher resolutions while still performing well. (explain)

Radeon RX 6500 XT		70400 Mpixels/sec
Radeon HD 5870		27200 Mpixels/sec
	Difference: 43200 (159%)

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 largest amount of data (measured in megabytes per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 amount of texture map elements (texels) that are applied per second. This figure is worked out 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 graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines 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 quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.