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Geforce GTX 680 vs Radeon RX 6600

Intro

The Geforce GTX 680 features core speeds of 1006 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 RAM. It features 1536 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

Compare that to the Radeon RX 6600, which features a core clock speed of 1626 MHz and a GDDR6 memory frequency of 1750 MHz. It also uses a 128-bit bus, and makes use of a 7 nm design. It is comprised of 1792 SPUs, 112 Texture Address Units, 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 will be 19% faster than the Geforce GTX 680 overall, due to its greater data rate. (explain)

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

Texel Rate

The Radeon RX 6600 should be much (approximately 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 FSAA than the Geforce GTX 680, and should be able to handle higher resolutions better. (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

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.

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 largest amount of data (measured in megabytes per second) that can be transported across the external memory interface within a second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few 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

Hide Prices

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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