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Radeon RX 470 vs Radeon RX 480 4GB


Intro

The Radeon RX 470 comes with a GPU core clock speed of 926 MHz, and the 8192 MB of GDDR5 memory runs at 1650 MHz through a 256-bit bus. It also features 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

Compare those specifications to the Radeon RX 480 4GB, which has a core clock speed of 1120 MHz and a GDDR5 memory frequency of 1750 MHz. It also uses a 256-bit bus, and makes use of a 14 nm design. It features 2304 SPUs, 144 TAUs, and 32 ROPs.

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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.

Zcash Mining Hash Rate

Radeon RX 470 289 Sol/s
Radeon RX 480 4GB 267 Sol/s
Difference: 22 (8%)

Ethereum Mining Hash Rate

Radeon RX 470 26 Mh/s
Radeon RX 480 4GB 25 Mh/s
Difference: 1 (4%)

Monero Mining Hash Rate

Radeon RX 480 4GB 800 h/s
Radeon RX 470 750 h/s
Difference: 50 (7%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470 120 Watts
Radeon RX 480 4GB 150 Watts
Difference: 30 Watts (25%)

Memory Bandwidth

The Radeon RX 480 4GB should in theory perform just a bit faster than the Radeon RX 470 overall. (explain)

Radeon RX 480 4GB 229376 MB/sec
Radeon RX 470 211200 MB/sec
Difference: 18176 (9%)

Texel Rate

The Radeon RX 480 4GB should be quite a bit (more or less 36%) faster with regards to anisotropic filtering than the Radeon RX 470. (explain)

Radeon RX 480 4GB 161280 Mtexels/sec
Radeon RX 470 118528 Mtexels/sec
Difference: 42752 (36%)

Pixel Rate

The Radeon RX 480 4GB should be a lot (more or less 21%) better at FSAA than the Radeon RX 470, and should be capable of handling higher resolutions without losing too much performance. (explain)

Radeon RX 480 4GB 35840 Mpixels/sec
Radeon RX 470 29632 Mpixels/sec
Difference: 6208 (21%)

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

Radeon RX 470

Radeon RX 480 4GB

Specifications

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Model Radeon RX 470 Radeon RX 480 4GB
Manufacturer AMD AMD
Year August 2016 June 2016
Code Name Polaris 10 Polaris 10
Memory 8192 MB 4096 MB
Core Speed 926 MHz 1120 MHz
Memory Speed 6600 MHz 7000 MHz
Power (Max TDP) 120 watts 150 watts
Bandwidth 211200 MB/sec 229376 MB/sec
Texel Rate 118528 Mtexels/sec 161280 Mtexels/sec
Pixel Rate 29632 Mpixels/sec 35840 Mpixels/sec
Unified Shaders 2048 2304
Texture Mapping Units 128 144
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 14 nm 14 nm
Transistors 5700 million 5700 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 max amount of data (in units of MB per second) that can be transported across the external memory interface within a second. It is calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, the result should 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, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Radeon RX 470

Radeon RX 480 4GB

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