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Radeon HD 5870 vs Radeon RX 6500 XT

Intro

The Radeon HD 5870 makes use of a 40 nm design. AMD has clocked the core speed at 850 MHz. The GDDR5 memory works at a speed of 1200 MHz on this particular card. It features 1600(320x5) SPUs along with 80 TAUs and 32 Rasterization Operator Units.

Compare those specifications to the Radeon RX 6500 XT, which has a core clock frequency of 2200 MHz and a GDDR6 memory speed of 2250 MHz. It also uses a 64-bit bus, and makes use of a 6 nm design. It features 1024 SPUs, 64 Texture Address Units, and 32 Raster Operation Units.

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

Theoretically speaking, the Radeon HD 5870 should be 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 should be quite a bit (approximately 107%) more effective at AF than the Radeon HD 5870. (explain)

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

Pixel Rate

If running with a high resolution 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 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

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Radeon HD 5870

Amazon.com

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Radeon RX 6500 XT

Amazon.com

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Radeon HD 5870 Radeon RX 6500 XT
Manufacturer AMD AMD
Year September 23, 2009 January 2022
Code Name Cypress XT Navi 24 XT
Memory 1024 MB 4096 MB
Core Speed 850 MHz 2200 MHz
Memory Speed 4800 MHz 4500 GB/s
Power (Max TDP) 188 watts 107 watts
Bandwidth 153600 MB/sec 147456 MB/sec
Texel Rate 68000 Mtexels/sec 140800 Mtexels/sec
Pixel Rate 27200 Mpixels/sec 70400 Mpixels/sec
Unified Shaders 1600(320x5) 1024
Texture Mapping Units 80 64
Render Output Units 32 32
Bus Type GDDR5 GDDR6
Bus Width 256-bit 64-bit
Fab Process 40 nm 6 nm
Transistors 2154 million 5400 million
Bus PCIe 2.1 x16 PCIe 4.0 x16
DirectX Version DirectX 11 DirectX 12
OpenGL Version OpenGL 3.2 OpenGL 4.6

Memory Bandwidth: Bandwidth is the largest amount of data (counted in MB per second) that can be moved across 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, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. 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 ability to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 5870

Amazon.com

Check prices at:

Radeon RX 6500 XT

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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