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GeForce GTX 1660 Ti vs Radeon RX Vega 64

Intro

The GeForce GTX 1660 Ti comes with a GPU core speed of 1500 MHz, and the 6144 MB of GDDR6 RAM is set to run at 12000 MHz through a 192-bit bus. It also is made up of 1536 Stream Processors, 96 Texture Address Units, and 48 ROPs.

Compare those specifications to the Radeon RX Vega 64, which has clock speeds of 1247 MHz on the GPU, and 1890 MHz on the 8192 MB of HBM2 RAM. It features 4096 SPUs as well as 256 Texture Address Units and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1660 Ti 120 Watts
Radeon RX Vega 64 295 Watts
Difference: 175 Watts (146%)

Memory Bandwidth

Theoretically, the Radeon RX Vega 64 should be much faster than the GeForce GTX 1660 Ti in general. (explain)

Radeon RX Vega 64 495411 MB/sec
GeForce GTX 1660 Ti 294912 MB/sec
Difference: 200499 (68%)

Texel Rate

The Radeon RX Vega 64 is quite a bit (about 122%) more effective at texture filtering than the GeForce GTX 1660 Ti. (explain)

Radeon RX Vega 64 319232 Mtexels/sec
GeForce GTX 1660 Ti 144000 Mtexels/sec
Difference: 175232 (122%)

Pixel Rate

The Radeon RX Vega 64 will be just a bit (approximately 11%) more effective at AA than the GeForce GTX 1660 Ti, and capable of handling higher resolutions without slowing down too much. (explain)

Radeon RX Vega 64 79808 Mpixels/sec
GeForce GTX 1660 Ti 72000 Mpixels/sec
Difference: 7808 (11%)

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

Display Prices

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GeForce GTX 1660 Ti

Amazon.com

Radeon RX Vega 64

Amazon.com

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

Display Specifications

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Model GeForce GTX 1660 Ti Radeon RX Vega 64
Manufacturer nVidia AMD
Year February 2019 August 2017
Code Name TU116-400-A1 Vega 10 XT
Memory 6144 MB 8192 MB
Core Speed 1500 MHz 1247 MHz
Memory Speed 12000 GB/s 1890 MHz
Power (Max TDP) 120 watts 295 watts
Bandwidth 294912 MB/sec 495411 MB/sec
Texel Rate 144000 Mtexels/sec 319232 Mtexels/sec
Pixel Rate 72000 Mpixels/sec 79808 Mpixels/sec
Unified Shaders 1536 4096
Texture Mapping Units 96 256
Render Output Units 48 64
Bus Type GDDR6 HBM2
Bus Width 192-bit 2048-bit
Fab Process 12 nm 14 nm
Transistors 6600 million 12500 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12.0 DirectX 12.0
OpenGL Version OpenGL 4.6 OpenGL 4.5

Memory Bandwidth: Bandwidth is the largest amount of information (in units of MB per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, 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 can be processed in one second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 1660 Ti

Amazon.com

Radeon RX Vega 64

Amazon.com

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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