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GeForce GTX 880M vs Radeon HD 7850

Intro

The GeForce GTX 880M features a clock speed of 954 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 256-bit bus, and uses a 28 nm design. It is made up of 1536 SPUs, 128 TAUs, and 32 Raster Operation Units.

Compare those specs to the Radeon HD 7850, which makes use of a 28 nm design. AMD has clocked the core frequency at 860 MHz. The GDDR5 memory runs at a frequency of 1200 MHz on this particular card. It features 1024 SPUs as well as 64 TAUs and 32 Rasterization Operator 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 880M 6360 points
Radeon HD 7850 5200 points
Difference: 1160 (22%)

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Theoretically speaking, the Radeon HD 7850 should be a little bit faster than the GeForce GTX 880M overall. (explain)

Radeon HD 7850 153600 MB/sec
GeForce GTX 880M 128000 MB/sec
Difference: 25600 (20%)

Texel Rate

The GeForce GTX 880M will be much (about 122%) more effective at anisotropic filtering than the Radeon HD 7850. (explain)

GeForce GTX 880M 122112 Mtexels/sec
Radeon HD 7850 55040 Mtexels/sec
Difference: 67072 (122%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 880M is a better choice, but not by far. (explain)

GeForce GTX 880M 30528 Mpixels/sec
Radeon HD 7850 27520 Mpixels/sec
Difference: 3008 (11%)

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 880M

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.

Specifications

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Model GeForce GTX 880M Radeon HD 7850
Manufacturer nVidia AMD
Year March 12 2014 March 2012
Code Name GK104 Pitcairn Pro
Memory 4096 MB 2048 MB
Core Speed 954 MHz 860 MHz
Memory Speed 4000 MHz 4800 MHz
Power (Max TDP) 130 watts 130 watts
Bandwidth 128000 MB/sec 153600 MB/sec
Texel Rate 122112 Mtexels/sec 55040 Mtexels/sec
Pixel Rate 30528 Mpixels/sec 27520 Mpixels/sec
Unified Shaders 1536 1024
Texture Mapping Units 128 64
Render Output Units 32 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: Bandwidth is the max amount of data (in units of MB per second) that can be transferred across the external memory interface in a second. It's calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the 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 figure is calculated by multiplying the amount of ROPs by the the core speed of the card. 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 quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce GTX 880M

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.

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