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GeForce GTX 880M vs Radeon HD 6950 2GB

Intro

The GeForce GTX 880M comes with a core clock speed of 954 MHz and a GDDR5 memory speed of 1000 MHz. It also makes use of a 256-bit memory bus, and makes use of a 28 nm design. It features 1536 SPUs, 128 TAUs, and 32 ROPs.

Compare those specifications to the Radeon HD 6950 2GB, which has GPU core speed of 800 MHz, and 2048 MB of GDDR5 RAM running at 1250 MHz through a 256-bit bus. It also features 1408 Stream Processors, 88 Texture Address Units, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 880M 130 Watts
Radeon HD 6950 2GB 200 Watts
Difference: 70 Watts (54%)

Memory Bandwidth

The Radeon HD 6950 2GB, in theory, should be much faster than the GeForce GTX 880M overall. (explain)

Radeon HD 6950 2GB 160000 MB/sec
GeForce GTX 880M 128000 MB/sec
Difference: 32000 (25%)

Texel Rate

The GeForce GTX 880M will be quite a bit (approximately 73%) faster with regards to anisotropic filtering than the Radeon HD 6950 2GB. (explain)

GeForce GTX 880M 122112 Mtexels/sec
Radeon HD 6950 2GB 70400 Mtexels/sec
Difference: 51712 (73%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 880M is superior to the Radeon HD 6950 2GB, not by a very large margin though. (explain)

GeForce GTX 880M 30528 Mpixels/sec
Radeon HD 6950 2GB 25600 Mpixels/sec
Difference: 4928 (19%)

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 6950 2GB

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 6950 2GB
Manufacturer nVidia AMD
Year March 12 2014 December 2010
Code Name GK104 Cayman Pro
Memory 4096 MB 2048 MB
Core Speed 954 MHz 800 MHz
Memory Speed 4000 MHz 5000 MHz
Power (Max TDP) 130 watts 200 watts
Bandwidth 128000 MB/sec 160000 MB/sec
Texel Rate 122112 Mtexels/sec 70400 Mtexels/sec
Pixel Rate 30528 Mpixels/sec 25600 Mpixels/sec
Unified Shaders 1536 1408
Texture Mapping Units 128 88
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 40 nm
Transistors (Unknown) million 2640 million
Bus PCIe 3.0 x16 PCIe x16
DirectX Version DirectX 12 DirectX 11
OpenGL Version OpenGL 4.5 OpenGL 4.1

Memory Bandwidth: 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 calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher 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 texture map elements (texels) that are processed per second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

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

Display Prices

Hide Prices

GeForce GTX 880M

Amazon.com

Check prices at:

Radeon HD 6950 2GB

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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