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Radeon RX 460 vs Radeon RX 550


Intro

The Radeon RX 460 makes use of a 14 nm design. AMD has set the core speed at 1090 MHz. The GDDR5 memory runs at a frequency of 1750 MHz on this particular model. It features 896 SPUs along with 56 Texture Address Units and 16 Rasterization Operator Units.

Compare those specs to the Radeon RX 550, which comes with a clock frequency of 1100 MHz and a GDDR5 memory frequency of 1750 MHz. It also makes use of a 128-bit memory bus, and uses a 14 nm design. It is comprised of 512 SPUs, 32 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550 50 Watts
Radeon RX 460 75 Watts
Difference: 25 Watts (50%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 550 is 2% quicker than the Radeon RX 460 overall, due to its greater data rate. (explain)

Radeon RX 550 114688 MB/sec
Radeon RX 460 112000 MB/sec
Difference: 2688 (2%)

Texel Rate

The Radeon RX 460 is quite a bit (about 73%) faster with regards to anisotropic filtering than the Radeon RX 550. (explain)

Radeon RX 460 61040 Mtexels/sec
Radeon RX 550 35200 Mtexels/sec
Difference: 25840 (73%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 550 is a better choice, but not by far. (explain)

Radeon RX 550 17600 Mpixels/sec
Radeon RX 460 17440 Mpixels/sec
Difference: 160 (1%)

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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Radeon RX 460

Amazon.com

Radeon RX 550

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 Radeon RX 460 Radeon RX 550
Manufacturer AMD AMD
Year August 2016 April 2017
Code Name Polaris 11 Polaris 12
Memory 4096 MB 2048 MB
Core Speed 1090 MHz 1100 MHz
Memory Speed 7000 MHz 7000 MHz
Power (Max TDP) 75 watts 50 watts
Bandwidth 112000 MB/sec 114688 MB/sec
Texel Rate 61040 Mtexels/sec 35200 Mtexels/sec
Pixel Rate 17440 Mpixels/sec 17600 Mpixels/sec
Unified Shaders 896 512
Texture Mapping Units 56 32
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 14 nm 14 nm
Transistors 3000 million 2200 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 largest amount of information (in units of megabytes per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This figure is calculated 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 processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines 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 fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon RX 460

Amazon.com

Radeon RX 550

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.

Comments

3 Responses to “Radeon RX 460 vs Radeon RX 550”
Panos says:

Hello, can you please tell me which graphics card from amd radeon series rx-460, rx-550 or 560 has the above : resolution at 3840x2160 pixels 60hz, hdr, HDMI v 2.0b HDCP 2.2. I am going to use it on 4k uhdtv hdr mainly for watching movies with mpc-hc

Best graphics cards for under $200 – August 2017 – Hardware Compare - www.hwcompare.com says:

[…] The Radeon RX 550 will be a small bit (about 1%) faster with regards to anti-aliasing than the Radeon RX 460, and should be capable of handling higher resolutions better. (explain) […]

yea says:

where is the rx560??

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