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Geforce GTX 780 vs Radeon RX 590

Intro

The Geforce GTX 780 features a core clock frequency of 863 MHz and a GDDR5 memory frequency of 1502 MHz. It also uses a 384-bit bus, and uses a 28 nm design. It is made up of 2304 SPUs, 192 TAUs, and 48 ROPs.

Compare all that to the Radeon RX 590, which comes with core speeds of 1469 MHz on the GPU, and 2000 MHz on the 8192 MB of GDDR5 memory. It features 2304 SPUs along with 144 Texture Address Units and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 590 175 Watts
Geforce GTX 780 250 Watts
Difference: 75 Watts (43%)

Memory Bandwidth

The Geforce GTX 780 should in theory be just a bit faster than the Radeon RX 590 in general. (explain)

Geforce GTX 780 288384 MB/sec
Radeon RX 590 262144 MB/sec
Difference: 26240 (10%)

Texel Rate

The Radeon RX 590 is much (approximately 28%) faster with regards to texture filtering than the Geforce GTX 780. (explain)

Radeon RX 590 211536 Mtexels/sec
Geforce GTX 780 165696 Mtexels/sec
Difference: 45840 (28%)

Pixel Rate

The Radeon RX 590 should be a small bit (more or less 13%) faster with regards to FSAA than the Geforce GTX 780, and capable of handling higher screen resolutions better. (explain)

Radeon RX 590 47008 Mpixels/sec
Geforce GTX 780 41424 Mpixels/sec
Difference: 5584 (13%)

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

Amazon.com

Radeon RX 590

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 Radeon RX 590
Manufacturer nVidia AMD
Year May 2013 November 2018
Code Name GK110 Polaris 30
Memory 3072 MB 8192 MB
Core Speed 863 MHz 1469 MHz
Memory Speed 6008 MHz 8000 MHz
Power (Max TDP) 250 watts 175 watts
Bandwidth 288384 MB/sec 262144 MB/sec
Texel Rate 165696 Mtexels/sec 211536 Mtexels/sec
Pixel Rate 41424 Mpixels/sec 47008 Mpixels/sec
Unified Shaders 2304 2304
Texture Mapping Units 192 144
Render Output Units 48 32
Bus Type GDDR5 GDDR5
Bus Width 384-bit 256-bit
Fab Process 28 nm 12 nm
Transistors 7080 million 5700 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 12.0
OpenGL Version OpenGL 4.3 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of information (in units of megabytes per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher 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 are applied in one second. This is calculated by multiplying the total texture units of the card by the core 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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Geforce GTX 780

Amazon.com

Radeon RX 590

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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