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GeForce GTX 870M vs Radeon RX 550

Intro

The GeForce GTX 870M makes use of a 28 nm design. nVidia has clocked the core frequency at 941 MHz. The GDDR5 RAM is set to run at a speed of 1000 MHz on this particular model. It features 1344 SPUs as well as 112 Texture Address Units and 24 Rasterization Operator Units.

Compare all of that to the Radeon RX 550, which comes with a GPU core clock speed of 1100 MHz, and 2048 MB of GDDR5 memory set to run at 1750 MHz through a 128-bit bus. It also features 512 SPUs, 32 Texture Address Units, 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

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

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

Texel Rate

The GeForce GTX 870M is quite a bit (about 199%) better at texture filtering 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 should be much (approximately 28%) better at AA than the Radeon RX 550, and capable of handling higher screen resolutions without slowing down too much. (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 max amount of data (in units of MB per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. In the case of DDR memory, the result 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 AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total number of texture units by the core 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum 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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