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Geforce GTX 680 vs Radeon RX 6600

Intro

The Geforce GTX 680 makes use of a 28 nm design. nVidia has clocked the core frequency at 1006 MHz. The GDDR5 memory runs at a speed of 1502 MHz on this particular model. It features 1536 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

Compare that to the Radeon RX 6600, which has GPU core speed of 1626 MHz, and 8192 MB of GDDR6 RAM running at 1750 MHz through a 128-bit bus. It also is made up of 1792 Stream Processors, 112 TAUs, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600 132 Watts
Geforce GTX 680 195 Watts
Difference: 63 Watts (48%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6600 should perform a bit faster than the Geforce GTX 680 in general. (explain)

Radeon RX 6600 229376 MB/sec
Geforce GTX 680 192256 MB/sec
Difference: 37120 (19%)

Texel Rate

The Radeon RX 6600 will be quite a bit (more or less 41%) better at AF than the Geforce GTX 680. (explain)

Radeon RX 6600 182112 Mtexels/sec
Geforce GTX 680 128768 Mtexels/sec
Difference: 53344 (41%)

Pixel Rate

The Radeon RX 6600 will be a lot (approximately 223%) more effective at AA than the Geforce GTX 680, and also should be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon RX 6600 104064 Mpixels/sec
Geforce GTX 680 32192 Mpixels/sec
Difference: 71872 (223%)

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 GTX 680

Amazon.com

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Radeon RX 6600

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 Geforce GTX 680 Radeon RX 6600
Manufacturer nVidia AMD
Year March 2012 October 2021
Code Name GK104 Navi 23
Memory 2048 MB 8192 MB
Core Speed 1006 MHz 1626 MHz
Memory Speed 6008 MHz 3500 GB/s
Power (Max TDP) 195 watts 132 watts
Bandwidth 192256 MB/sec 229376 MB/sec
Texel Rate 128768 Mtexels/sec 182112 Mtexels/sec
Pixel Rate 32192 Mpixels/sec 104064 Mpixels/sec
Unified Shaders 1536 1792
Texture Mapping Units 128 112
Render Output Units 32 64
Bus Type GDDR5 GDDR6
Bus Width 256-bit 128-bit
Fab Process 28 nm 7 nm
Transistors 3540 million 11060 million
Bus PCIe 3.0 x16 PCIe 4.0 x16
DirectX Version DirectX 11.0 DirectX 12
OpenGL Version OpenGL 4.2 OpenGL 4.6

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be transported across the external memory interface within a second. The number is calculated by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics 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 also depends on lots of 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 GTX 680

Amazon.com

Check prices at:

Radeon RX 6600

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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