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GeForce 8400 GS 512MB vs Radeon RX 560

Intro

The GeForce 8400 GS 512MB features a core clock frequency of 650 MHz and a DDR2 memory speed of 400 MHz. It also makes use of a 64-bit bus, and makes use of a 80 nm design. It is made up of 16 SPUs, 8 Texture Address Units, and 4 Raster Operation Units.

Compare all of that to the Radeon RX 560, which features a clock frequency of 1175 MHz and a GDDR5 memory frequency of 7000 MHz. It also uses a 128-bit memory bus, and makes use of a 14 nm design. It features 1024 SPUs, 64 Texture Address Units, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8400 GS 512MB 40 Watts
Radeon RX 560 80 Watts
Difference: 40 Watts (100%)

Memory Bandwidth

Performance-wise, the Radeon RX 560 should in theory be a lot better than the GeForce 8400 GS 512MB in general. (explain)

Radeon RX 560 114688 MB/sec
GeForce 8400 GS 512MB 6400 MB/sec
Difference: 108288 (1692%)

Texel Rate

The Radeon RX 560 is much (more or less 1346%) faster with regards to anisotropic filtering than the GeForce 8400 GS 512MB. (explain)

Radeon RX 560 75200 Mtexels/sec
GeForce 8400 GS 512MB 5200 Mtexels/sec
Difference: 70000 (1346%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 560 is the winner, by a large margin. (explain)

Radeon RX 560 18800 Mpixels/sec
GeForce 8400 GS 512MB 2600 Mpixels/sec
Difference: 16200 (623%)

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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GeForce 8400 GS 512MB

Amazon.com

Check prices at:

Radeon RX 560

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 GeForce 8400 GS 512MB Radeon RX 560
Manufacturer nVidia AMD
Year June 2007 May 2017
Code Name G86 Baffin
Memory 512 MB 4096 MB
Core Speed 650 MHz 1175 MHz
Memory Speed 800 MHz 28000 MHz
Power (Max TDP) 40 watts 80 watts
Bandwidth 6400 MB/sec 114688 MB/sec
Texel Rate 5200 Mtexels/sec 75200 Mtexels/sec
Pixel Rate 2600 Mpixels/sec 18800 Mpixels/sec
Unified Shaders 16 1024
Texture Mapping Units 8 64
Render Output Units 4 16
Bus Type DDR2 GDDR5
Bus Width 64-bit 128-bit
Fab Process 80 nm 14 nm
Transistors 210 million 3000 million
Bus PCIe x16, PCI PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 12.0
OpenGL Version OpenGL 3.0 OpenGL 4.6

Memory Bandwidth: Bandwidth is the largest amount of data (in units of megabytes per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce 8400 GS 512MB

Amazon.com

Check prices at:

Radeon RX 560

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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