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GeForce GTX 870M vs Radeon RX 550

Intro

The GeForce GTX 870M features a core clock frequency of 941 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 192-bit memory bus, and makes use of a 28 nm design. It features 1344 SPUs, 112 Texture Address Units, and 24 ROPs.

Compare those specs to the Radeon RX 550, which comes with GPU core speed of 1100 MHz, and 2048 MB of GDDR5 RAM set to run at 1750 MHz through a 128-bit bus. It also features 512 SPUs, 32 TAUs, and 16 Raster Operation 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

GeForce GTX 870M 4770 points
Radeon RX 550 3507 points
Difference: 1263 (36%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550 50 Watts
GeForce GTX 870M 110 Watts
Difference: 60 Watts (120%)

Memory Bandwidth

In theory, the Radeon RX 550 will be 19% faster than the GeForce GTX 870M overall, because of its higher bandwidth. (explain)

Radeon RX 550 114688 MB/sec
GeForce GTX 870M 96000 MB/sec
Difference: 18688 (19%)

Texel Rate

The GeForce GTX 870M will be much (approximately 199%) faster with regards to AF than the Radeon RX 550. (explain)

GeForce GTX 870M 105392 Mtexels/sec
Radeon RX 550 35200 Mtexels/sec
Difference: 70192 (199%)

Pixel Rate

The GeForce GTX 870M is quite a bit (more or less 28%) more effective at FSAA than the Radeon RX 550, and also capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 870M 22584 Mpixels/sec
Radeon RX 550 17600 Mpixels/sec
Difference: 4984 (28%)

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 870M

Amazon.com

Check prices at:

Radeon RX 550

Amazon.com

Check prices at:

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 870M Radeon RX 550
Manufacturer nVidia AMD
Year March 12 2014 April 2017
Code Name GK104 Polaris 12
Memory 3072 MB 2048 MB
Core Speed 941 MHz 1100 MHz
Memory Speed 4000 MHz 7000 MHz
Power (Max TDP) 110 watts 50 watts
Bandwidth 96000 MB/sec 114688 MB/sec
Texel Rate 105392 Mtexels/sec 35200 Mtexels/sec
Pixel Rate 22584 Mpixels/sec 17600 Mpixels/sec
Unified Shaders 1344 512
Texture Mapping Units 112 32
Render Output Units 24 16
Bus Type GDDR5 GDDR5
Bus Width 192-bit 128-bit
Fab Process 28 nm 14 nm
Transistors (Unknown) million 2200 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 12.0
OpenGL Version OpenGL 4.5 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one 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 graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce GTX 870M

Amazon.com

Check prices at:

Radeon RX 550

Amazon.com

Check prices at:

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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