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GeForce GTX 950M vs Radeon HD 6950 2GB

Intro

The GeForce GTX 950M makes use of a 28 nm design. nVidia has clocked the core speed at 914 MHz. The DDR3 memory is set to run at a speed of 1000 MHz on this card. It features 640 SPUs as well as 40 Texture Address Units and 16 ROPs.

Compare those specs to the Radeon HD 6950 2GB, which makes use of a 40 nm design. AMD has set the core frequency at 800 MHz. The GDDR5 RAM is set to run at a speed of 1250 MHz on this particular card. It features 1408 SPUs as well as 88 Texture Address Units and 32 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M 55 Watts
Radeon HD 6950 2GB 200 Watts
Difference: 145 Watts (264%)

Memory Bandwidth

As far as performance goes, the Radeon HD 6950 2GB should in theory be quite a bit better than the GeForce GTX 950M in general. (explain)

Radeon HD 6950 2GB 160000 MB/sec
GeForce GTX 950M 32000 MB/sec
Difference: 128000 (400%)

Texel Rate

The Radeon HD 6950 2GB is a lot (more or less 93%) faster with regards to anisotropic filtering than the GeForce GTX 950M. (explain)

Radeon HD 6950 2GB 70400 Mtexels/sec
GeForce GTX 950M 36560 Mtexels/sec
Difference: 33840 (93%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 6950 2GB is a better choice, by a large margin. (explain)

Radeon HD 6950 2GB 25600 Mpixels/sec
GeForce GTX 950M 14624 Mpixels/sec
Difference: 10976 (75%)

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 950M

Amazon.com

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Radeon HD 6950 2GB

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 950M Radeon HD 6950 2GB
Manufacturer nVidia AMD
Year March 12 2015 December 2010
Code Name GM107 Cayman Pro
Memory 2048 MB 2048 MB
Core Speed 914 MHz 800 MHz
Memory Speed 2000 MHz 5000 MHz
Power (Max TDP) 55 watts 200 watts
Bandwidth 32000 MB/sec 160000 MB/sec
Texel Rate 36560 Mtexels/sec 70400 Mtexels/sec
Pixel Rate 14624 Mpixels/sec 25600 Mpixels/sec
Unified Shaders 640 1408
Texture Mapping Units 40 88
Render Output Units 16 32
Bus Type DDR3 GDDR5
Bus Width 128-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: Memory bandwidth is the largest amount of information (in units of megabytes per second) that can be transferred across the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR RAM, it should 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 higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 950M

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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