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GeForce GTX 980M vs Radeon HD 6870

Intro

The GeForce GTX 980M comes with a GPU clock speed of 1038 MHz, and the 4096 MB of GDDR5 memory is set to run at 1000 MHz through a 256-bit bus. It also features 1536 Stream Processors, 96 TAUs, and 64 Raster Operation Units.

Compare all of that to the Radeon HD 6870, which comes with a GPU core clock speed of 900 MHz, and 1024 MB of GDDR5 RAM running at 1050 MHz through a 256-bit bus. It also features 1120 Stream Processors, 56 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.

3DMark Fire Strike Graphics Score

GeForce GTX 980M 9476 points
Radeon HD 6870 2870 points
Difference: 6606 (230%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980M 100 Watts
Radeon HD 6870 151 Watts
Difference: 51 Watts (51%)

Memory Bandwidth

The Radeon HD 6870 should theoretically perform a small bit faster than the GeForce GTX 980M in general. (explain)

Radeon HD 6870 134400 MB/sec
GeForce GTX 980M 128000 MB/sec
Difference: 6400 (5%)

Texel Rate

The GeForce GTX 980M will be a lot (more or less 98%) better at anisotropic filtering than the Radeon HD 6870. (explain)

GeForce GTX 980M 99648 Mtexels/sec
Radeon HD 6870 50400 Mtexels/sec
Difference: 49248 (98%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 980M is the winner, and very much so. (explain)

GeForce GTX 980M 66432 Mpixels/sec
Radeon HD 6870 28800 Mpixels/sec
Difference: 37632 (131%)

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 980M

Amazon.com

Check prices at:

Radeon HD 6870

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 980M Radeon HD 6870
Manufacturer nVidia AMD
Year October 7 2014 October 2010
Code Name GM204 Barts XT
Memory 4096 MB 1024 MB
Core Speed 1038 MHz 900 MHz
Memory Speed 4000 MHz 4200 MHz
Power (Max TDP) 100 watts 151 watts
Bandwidth 128000 MB/sec 134400 MB/sec
Texel Rate 99648 Mtexels/sec 50400 Mtexels/sec
Pixel Rate 66432 Mpixels/sec 28800 Mpixels/sec
Unified Shaders 1536 1120
Texture Mapping Units 96 56
Render Output Units 64 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 40 nm
Transistors (Unknown) million 1700 million
Bus PCIe 3.0 x16 PCIe x16
DirectX Version DirectX 12 DirectX 11
OpenGL Version OpenGL 4.5 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in MB per second) that can be transferred past the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total amount of texture units of the card by the core 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 applied per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce GTX 980M

Amazon.com

Check prices at:

Radeon HD 6870

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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