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GeForce GTX 980 Ti vs Radeon RX Vega 56

Intro

The GeForce GTX 980 Ti features a clock speed of 1000 MHz and a GDDR5 memory speed of 1750 MHz. It also uses a 384-bit bus, and makes use of a 28 nm design. It is comprised of 2816 SPUs, 176 Texture Address Units, and 96 ROPs.

Compare those specs to the Radeon RX Vega 56, which features a core clock speed of 1156 MHz and a HBM2 memory frequency of 1600 MHz. It also features a 2048-bit memory bus, and makes use of a 14 nm design. It is comprised of 3584 SPUs, 224 Texture Address Units, and 64 Raster Operation Units.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon RX Vega 56 21011 points
GeForce GTX 980 Ti 17120 points
Difference: 3891 (23%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX Vega 56 210 Watts
GeForce GTX 980 Ti 250 Watts
Difference: 40 Watts (19%)

Memory Bandwidth

In theory, the Radeon RX Vega 56 should be 25% faster than the GeForce GTX 980 Ti in general, due to its higher data rate. (explain)

Radeon RX Vega 56 419430 MB/sec
GeForce GTX 980 Ti 336000 MB/sec
Difference: 83430 (25%)

Texel Rate

The Radeon RX Vega 56 should be much (about 47%) more effective at texture filtering than the GeForce GTX 980 Ti. (explain)

Radeon RX Vega 56 258944 Mtexels/sec
GeForce GTX 980 Ti 176000 Mtexels/sec
Difference: 82944 (47%)

Pixel Rate

The GeForce GTX 980 Ti should be a lot (more or less 30%) faster with regards to anti-aliasing than the Radeon RX Vega 56, and will be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 980 Ti 96000 Mpixels/sec
Radeon RX Vega 56 73984 Mpixels/sec
Difference: 22016 (30%)

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 980 Ti

Amazon.com

Check prices at:

Radeon RX Vega 56

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 980 Ti Radeon RX Vega 56
Manufacturer nVidia AMD
Year June 2015 September 2017
Code Name GM200 Vega 10 XL
Memory 6144 MB 8192 MB
Core Speed 1000 MHz 1156 MHz
Memory Speed 7000 MHz 1600 MHz
Power (Max TDP) 250 watts 210 watts
Bandwidth 336000 MB/sec 419430 MB/sec
Texel Rate 176000 Mtexels/sec 258944 Mtexels/sec
Pixel Rate 96000 Mpixels/sec 73984 Mpixels/sec
Unified Shaders 2816 3584
Texture Mapping Units 176 224
Render Output Units 96 64
Bus Type GDDR5 HBM2
Bus Width 384-bit 2048-bit
Fab Process 28 nm 14 nm
Transistors 8000 million 12500 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12.0 DirectX 12.0
OpenGL Version OpenGL 4.5 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the largest amount of data (measured in MB per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce GTX 980 Ti

Amazon.com

Check prices at:

Radeon RX Vega 56

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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