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GeForce GTX 980M vs Radeon HD 7850

Intro

The GeForce GTX 980M uses a 28 nm design. nVidia has clocked the core speed at 1038 MHz. The GDDR5 memory runs at a speed of 1000 MHz on this particular model. It features 1536 SPUs along with 96 TAUs and 64 Rasterization Operator Units.

Compare all of that to the Radeon HD 7850, which uses a 28 nm design. AMD has clocked the core frequency at 860 MHz. The GDDR5 RAM is set to run at a frequency of 1200 MHz on this specific model. It features 1024 SPUs along with 64 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 7850 5200 points
Difference: 4276 (82%)

Zcash Mining Hash Rate

Radeon HD 7850 171 Sol/s
GeForce GTX 980M 155 Sol/s
Difference: 16 (10%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980M 100 Watts
Radeon HD 7850 130 Watts
Difference: 30 Watts (30%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 7850 should be 20% quicker than the GeForce GTX 980M overall, because of its greater bandwidth. (explain)

Radeon HD 7850 153600 MB/sec
GeForce GTX 980M 128000 MB/sec
Difference: 25600 (20%)

Texel Rate

The GeForce GTX 980M should be quite a bit (about 81%) more effective at anisotropic filtering than the Radeon HD 7850. (explain)

GeForce GTX 980M 99648 Mtexels/sec
Radeon HD 7850 55040 Mtexels/sec
Difference: 44608 (81%)

Pixel Rate

The GeForce GTX 980M should be quite a bit (more or less 141%) more effective at full screen anti-aliasing than the Radeon HD 7850, and also able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 980M 66432 Mpixels/sec
Radeon HD 7850 27520 Mpixels/sec
Difference: 38912 (141%)

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 7850

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 7850
Manufacturer nVidia AMD
Year October 7 2014 March 2012
Code Name GM204 Pitcairn Pro
Memory 4096 MB 2048 MB
Core Speed 1038 MHz 860 MHz
Memory Speed 4000 MHz 4800 MHz
Power (Max TDP) 100 watts 130 watts
Bandwidth 128000 MB/sec 153600 MB/sec
Texel Rate 99648 Mtexels/sec 55040 Mtexels/sec
Pixel Rate 66432 Mpixels/sec 27520 Mpixels/sec
Unified Shaders 1536 1024
Texture Mapping Units 96 64
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 max amount of data (measured in megabytes per second) that can be moved past the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. 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 texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total texture units by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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GeForce GTX 980M

Amazon.com

Check prices at:

Radeon HD 7850

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.

Comments

One Response to “GeForce GTX 980M vs Radeon HD 7850”
Zige says:

Radeon HD 7850 have DirectX 12 version not 11.1!

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