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GeForce GTX 780 Ti vs Radeon RX Vega 56

Intro

The GeForce GTX 780 Ti uses a 28 nm design. nVidia has clocked the core frequency at 875 MHz. The GDDR5 RAM works at a frequency of 1750 MHz on this particular card. It features 2880 SPUs as well as 240 Texture Address Units and 48 Rasterization Operator Units.

Compare those specs to the Radeon RX Vega 56, which uses a 14 nm design. AMD has set the core frequency at 1156 MHz. The HBM2 RAM runs at a frequency of 1600 MHz on this particular card. It features 3584 SPUs as well as 224 Texture Address Units and 64 Rasterization Operator 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 780 Ti 10900 points
Difference: 10111 (93%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX Vega 56 210 Watts
GeForce GTX 780 Ti 250 Watts
Difference: 40 Watts (19%)

Memory Bandwidth

Theoretically speaking, the Radeon RX Vega 56 should be 25% faster than the GeForce GTX 780 Ti in general, because of its greater bandwidth. (explain)

Radeon RX Vega 56 419430 MB/sec
GeForce GTX 780 Ti 336000 MB/sec
Difference: 83430 (25%)

Texel Rate

The Radeon RX Vega 56 should be quite a bit (about 23%) faster with regards to anisotropic filtering than the GeForce GTX 780 Ti. (explain)

Radeon RX Vega 56 258944 Mtexels/sec
GeForce GTX 780 Ti 210000 Mtexels/sec
Difference: 48944 (23%)

Pixel Rate

The Radeon RX Vega 56 is a lot (more or less 76%) better at full screen anti-aliasing than the GeForce GTX 780 Ti, and also able to handle higher screen resolutions without losing too much performance. (explain)

Radeon RX Vega 56 73984 Mpixels/sec
GeForce GTX 780 Ti 42000 Mpixels/sec
Difference: 31984 (76%)

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 780 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 780 Ti Radeon RX Vega 56
Manufacturer nVidia AMD
Year November 2013 September 2017
Code Name GK110 Vega 10 XL
Memory 3072 MB 8192 MB
Core Speed 875 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 210000 Mtexels/sec 258944 Mtexels/sec
Pixel Rate 42000 Mpixels/sec 73984 Mpixels/sec
Unified Shaders 2880 3584
Texture Mapping Units 240 224
Render Output Units 48 64
Bus Type GDDR5 HBM2
Bus Width 384-bit 2048-bit
Fab Process 28 nm 14 nm
Transistors 7080 million 12500 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 12.0
OpenGL Version OpenGL 4.4 OpenGL 4.5

Memory Bandwidth: Bandwidth is the max amount of data (in units of megabytes per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the 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 texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - 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 780 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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