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GeForce GTX 980M vs Radeon HD 7870

Intro

The GeForce GTX 980M has a core clock frequency of 1038 MHz and a GDDR5 memory frequency of 1000 MHz. It also features a 256-bit memory bus, and uses a 28 nm design. It is made up of 1536 SPUs, 96 TAUs, and 64 Raster Operation Units.

Compare all of that to the Radeon HD 7870, which has core speeds of 1000 MHz on the GPU, and 1200 MHz on the 2048 MB of GDDR5 memory. It features 1280 SPUs as well as 80 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 7870 6230 points
Difference: 3246 (52%)

Zcash Mining Hash Rate

Radeon HD 7870 172 Sol/s
GeForce GTX 980M 155 Sol/s
Difference: 17 (11%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980M 100 Watts
Radeon HD 7870 175 Watts
Difference: 75 Watts (75%)

Memory Bandwidth

The Radeon HD 7870 should theoretically perform just a bit faster than the GeForce GTX 980M in general. (explain)

Radeon HD 7870 153600 MB/sec
GeForce GTX 980M 128000 MB/sec
Difference: 25600 (20%)

Texel Rate

The GeForce GTX 980M should be much (approximately 25%) faster with regards to texture filtering than the Radeon HD 7870. (explain)

GeForce GTX 980M 99648 Mtexels/sec
Radeon HD 7870 80000 Mtexels/sec
Difference: 19648 (25%)

Pixel Rate

The GeForce GTX 980M will be quite a bit (approximately 108%) better at FSAA than the Radeon HD 7870, and also should be able to handle higher screen resolutions more effectively. (explain)

GeForce GTX 980M 66432 Mpixels/sec
Radeon HD 7870 32000 Mpixels/sec
Difference: 34432 (108%)

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

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Radeon HD 7870

Amazon.com

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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 7870
Manufacturer nVidia AMD
Year October 7 2014 March 2012
Code Name GM204 Pitcairn XT
Memory 4096 MB 2048 MB
Core Speed 1038 MHz 1000 MHz
Memory Speed 4000 MHz 4800 MHz
Power (Max TDP) 100 watts 175 watts
Bandwidth 128000 MB/sec 153600 MB/sec
Texel Rate 99648 Mtexels/sec 80000 Mtexels/sec
Pixel Rate 66432 Mpixels/sec 32000 Mpixels/sec
Unified Shaders 1536 1280
Texture Mapping Units 96 80
Render Output Units 64 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million 2800 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 11.1
OpenGL Version OpenGL 4.5 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be transported across the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the 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 7870

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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