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Radeon HD 7850 vs Radeon RX 6500 XT

Intro

The Radeon HD 7850 features a clock frequency of 860 MHz and a GDDR5 memory frequency of 1200 MHz. It also uses a 256-bit bus, and uses a 28 nm design. It is comprised of 1024 SPUs, 64 TAUs, and 32 Raster Operation Units.

Compare all that to the Radeon RX 6500 XT, which makes use of a 6 nm design. AMD has clocked the core frequency at 2200 MHz. The GDDR6 RAM runs at a frequency of 2250 MHz on this specific card. It features 1024 SPUs along with 64 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6500 XT 107 Watts
Radeon HD 7850 130 Watts
Difference: 23 Watts (21%)

Memory Bandwidth

As far as performance goes, the Radeon HD 7850 should theoretically be a little bit superior to the Radeon RX 6500 XT overall. (explain)

Radeon HD 7850 153600 MB/sec
Radeon RX 6500 XT 147456 MB/sec
Difference: 6144 (4%)

Texel Rate

The Radeon RX 6500 XT is quite a bit (approximately 156%) more effective at AF than the Radeon HD 7850. (explain)

Radeon RX 6500 XT 140800 Mtexels/sec
Radeon HD 7850 55040 Mtexels/sec
Difference: 85760 (156%)

Pixel Rate

The Radeon RX 6500 XT is quite a bit (approximately 156%) more effective at full screen anti-aliasing than the Radeon HD 7850, and should be able to handle higher resolutions better. (explain)

Radeon RX 6500 XT 70400 Mpixels/sec
Radeon HD 7850 27520 Mpixels/sec
Difference: 42880 (156%)

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 7850

Amazon.com

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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.

Specifications

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Model Radeon HD 7850 Radeon RX 6500 XT
Manufacturer AMD AMD
Year March 2012 January 2022
Code Name Pitcairn Pro Navi 24 XT
Memory 2048 MB 4096 MB
Core Speed 860 MHz 2200 MHz
Memory Speed 4800 MHz 4500 GB/s
Power (Max TDP) 130 watts 107 watts
Bandwidth 153600 MB/sec 147456 MB/sec
Texel Rate 55040 Mtexels/sec 140800 Mtexels/sec
Pixel Rate 27520 Mpixels/sec 70400 Mpixels/sec
Unified Shaders 1024 1024
Texture Mapping Units 64 64
Render Output Units 32 32
Bus Type GDDR5 GDDR6
Bus Width 256-bit 64-bit
Fab Process 28 nm 6 nm
Transistors 2800 million 5400 million
Bus PCIe 3.0 x16 PCIe 4.0 x16
DirectX Version DirectX 11.1 DirectX 12
OpenGL Version OpenGL 4.2 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in MB per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the bus width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, 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 texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core 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 rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 7850

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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