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GeForce GTX 660 vs Radeon RX 5700

Intro

The GeForce GTX 660 has a GPU clock speed of 980 MHz, and the 2048 MB of GDDR5 RAM is set to run at 1502 MHz through a 192-bit bus. It also features 960 Stream Processors, 80 TAUs, and 24 ROPs.

Compare those specs to the Radeon RX 5700, which uses a 7 nm design. AMD has set the core frequency at 1465 MHz. The GDDR6 memory is set to run at a speed of 1750 MHz on this card. It features 2304 SPUs as well as 144 TAUs and 64 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 140 Watts
Radeon RX 5700 180 Watts
Difference: 40 Watts (29%)

Memory Bandwidth

In theory, the Radeon RX 5700 is 218% quicker than the GeForce GTX 660 in general, due to its greater bandwidth. (explain)

Radeon RX 5700 458752 MB/sec
GeForce GTX 660 144192 MB/sec
Difference: 314560 (218%)

Texel Rate

The Radeon RX 5700 is much (approximately 169%) better at anisotropic filtering than the GeForce GTX 660. (explain)

Radeon RX 5700 210960 Mtexels/sec
GeForce GTX 660 78400 Mtexels/sec
Difference: 132560 (169%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX 5700 is the winner, by far. (explain)

Radeon RX 5700 93760 Mpixels/sec
GeForce GTX 660 23520 Mpixels/sec
Difference: 70240 (299%)

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 660

Amazon.com

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Radeon RX 5700

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 660 Radeon RX 5700
Manufacturer nVidia AMD
Year September 2012 July 2019
Code Name GK106 Navi 10
Memory 2048 MB 8096 MB
Core Speed 980 MHz 1465 MHz
Memory Speed 6008 MHz 3500 GB/s
Power (Max TDP) 140 watts 180 watts
Bandwidth 144192 MB/sec 458752 MB/sec
Texel Rate 78400 Mtexels/sec 210960 Mtexels/sec
Pixel Rate 23520 Mpixels/sec 93760 Mpixels/sec
Unified Shaders 960 2304
Texture Mapping Units 80 144
Render Output Units 24 64
Bus Type GDDR5 GDDR6
Bus Width 192-bit 256-bit
Fab Process 28 nm 7 nm
Transistors 2540 million 10300 million
Bus PCIe 3.0 x16 PCIe 4.0 ×16
DirectX Version DirectX 11.0 DirectX 12
OpenGL Version OpenGL 4.3 OpenGL 4.6

Memory Bandwidth: Bandwidth is the max amount of information (in units of megabytes per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core clock speed. 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, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GTX 660

Amazon.com

Check prices at:

Radeon RX 5700

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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