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GeForce GTX 980 Ti vs Radeon RX Vega 56

Intro

The GeForce GTX 980 Ti comes with a core clock speed of 1000 MHz and a GDDR5 memory speed of 1750 MHz. It also features a 384-bit bus, and uses a 28 nm design. It features 2816 SPUs, 176 TAUs, and 96 ROPs.

Compare that to the Radeon RX Vega 56, which features a core clock frequency of 1156 MHz and a HBM2 memory speed of 1600 MHz. It also makes use of a 2048-bit bus, and uses a 14 nm design. It is made up 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 17013 points
Difference: 3998 (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

As far as performance goes, the Radeon RX Vega 56 should theoretically be a lot superior to the GeForce GTX 980 Ti overall. (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 quite a bit (more or less 47%) more effective at anisotropic 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 quite a bit (approximately 30%) faster with regards to FSAA than the Radeon RX Vega 56, and should be capable of handling higher screen resolutions while still performing well. (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

Radeon RX Vega 56

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

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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: Bandwidth is the largest amount of information (measured in megabytes per second) that can be transferred across the external memory interface within a second. It's worked out by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 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 anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, 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 most pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. 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, especially the memory bandwidth of the card - 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 980 Ti

Amazon.com

Radeon RX Vega 56

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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