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Radeon HD 6790 vs Radeon RX 5500

Intro

The Radeon HD 6790 features core clock speeds of 840 MHz on the GPU, and 1050 MHz on the 1024 MB of GDDR5 RAM. It features 800 SPUs along with 40 Texture Address Units and 16 Rasterization Operator Units.

Compare those specifications to the Radeon RX 5500, which features a clock speed of 1670 MHz and a GDDR6 memory frequency of 1750 MHz. It also makes use of a 128-bit memory bus, and makes use of a 7 nm design. It is made up of 1408 SPUs, 88 Texture Address Units, and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

The Radeon RX 5500, in theory, should be a lot faster than the Radeon HD 6790 overall. (explain)

Radeon RX 5500 229376 MB/sec
Radeon HD 6790 134400 MB/sec
Difference: 94976 (71%)

Texel Rate

The Radeon RX 5500 is much (more or less 337%) more effective at anisotropic filtering than the Radeon HD 6790. (explain)

Radeon RX 5500 146960 Mtexels/sec
Radeon HD 6790 33600 Mtexels/sec
Difference: 113360 (337%)

Pixel Rate

The Radeon RX 5500 is a lot (approximately 298%) faster with regards to FSAA than the Radeon HD 6790, and also will be able to handle higher resolutions more effectively. (explain)

Radeon RX 5500 53440 Mpixels/sec
Radeon HD 6790 13440 Mpixels/sec
Difference: 40000 (298%)

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 6790

Amazon.com

Check prices at:

Radeon RX 5500

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 6790 Radeon RX 5500
Manufacturer AMD AMD
Year April 2011 October 2019
Code Name Barts LE Navi 14 XT
Memory 1024 MB 4096 MB
Core Speed 840 MHz 1670 MHz
Memory Speed 4200 MHz 3500 GB/s
Power (Max TDP) 150 watts 150 watts
Bandwidth 134400 MB/sec 229376 MB/sec
Texel Rate 33600 Mtexels/sec 146960 Mtexels/sec
Pixel Rate 13440 Mpixels/sec 53440 Mpixels/sec
Unified Shaders 800 1408
Texture Mapping Units 40 88
Render Output Units 16 32
Bus Type GDDR5 GDDR6
Bus Width 256-bit 128-bit
Fab Process 40 nm 7 nm
Transistors 1700 million 6400 million
Bus PCIe 2.1 x16 PCIe 4.0 ×16
DirectX Version DirectX 11 DirectX 12
OpenGL Version OpenGL 4.1 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the maximum amount of information (in units of MB per second) that can be moved over the external memory interface in a second. It is calculated by multiplying the interface width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed 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 graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory in one 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 sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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Radeon HD 6790

Amazon.com

Check prices at:

Radeon RX 5500

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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