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Geforce GTX 770 vs Radeon RX 470

Intro

The Geforce GTX 770 makes use of a 28 nm design. nVidia has set the core speed at 1046 MHz. The GDDR5 memory is set to run at a speed of 1753 MHz on this specific card. It features 1536 SPUs as well as 128 TAUs and 32 Rasterization Operator Units.

Compare those specs to the Radeon RX 470, which comes with a clock speed of 926 MHz and a GDDR5 memory speed of 1650 MHz. It also features a 256-bit bus, and uses a 14 nm design. It is comprised of 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470 120 Watts
Geforce GTX 770 230 Watts
Difference: 110 Watts (92%)

Memory Bandwidth

The Geforce GTX 770 should in theory be a small bit faster than the Radeon RX 470 overall. (explain)

Geforce GTX 770 224384 MB/sec
Radeon RX 470 211200 MB/sec
Difference: 13184 (6%)

Texel Rate

The Geforce GTX 770 will be just a bit (approximately 13%) faster with regards to texture filtering than the Radeon RX 470. (explain)

Geforce GTX 770 133888 Mtexels/sec
Radeon RX 470 118528 Mtexels/sec
Difference: 15360 (13%)

Pixel Rate

If running with a high screen resolution is important to you, then the Geforce GTX 770 is superior to the Radeon RX 470, but only just. (explain)

Geforce GTX 770 33472 Mpixels/sec
Radeon RX 470 29632 Mpixels/sec
Difference: 3840 (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

Geforce GTX 770

Radeon RX 470

Specifications

Display Specifications

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Model Geforce GTX 770 Radeon RX 470
Manufacturer nVidia AMD
Year May 2013 August 2016
Code Name GK104 Polaris 10
Memory 2048 MB 8192 MB
Core Speed 1046 MHz 926 MHz
Memory Speed 7012 MHz 6600 MHz
Power (Max TDP) 230 watts 120 watts
Bandwidth 224384 MB/sec 211200 MB/sec
Texel Rate 133888 Mtexels/sec 118528 Mtexels/sec
Pixel Rate 33472 Mpixels/sec 29632 Mpixels/sec
Unified Shaders 1536 2048
Texture Mapping Units 128 128
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 14 nm
Transistors 3540 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 MB per second) that can be moved past the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster 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 per second. This is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the video 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 number of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Geforce GTX 770

Radeon RX 470

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