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GeForce GTX 950M vs Radeon HD 6870

Intro

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

Compare those specifications to the Radeon HD 6870, which features GPU core speed of 900 MHz, and 1024 MB of GDDR5 memory set to run at 1050 MHz through a 256-bit bus. It also features 1120 Stream Processors, 56 Texture Address Units, and 32 Raster Operation 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 950M 3330 points
Radeon HD 6870 2870 points
Difference: 460 (16%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950M 55 Watts
Radeon HD 6870 151 Watts
Difference: 96 Watts (175%)

Memory Bandwidth

In theory, the Radeon HD 6870 is 320% quicker than the GeForce GTX 950M overall, because of its greater bandwidth. (explain)

Radeon HD 6870 134400 MB/sec
GeForce GTX 950M 32000 MB/sec
Difference: 102400 (320%)

Texel Rate

The Radeon HD 6870 should be quite a bit (approximately 38%) better at AF than the GeForce GTX 950M. (explain)

Radeon HD 6870 50400 Mtexels/sec
GeForce GTX 950M 36560 Mtexels/sec
Difference: 13840 (38%)

Pixel Rate

The Radeon HD 6870 should be quite a bit (approximately 97%) better at anti-aliasing than the GeForce GTX 950M, and should be capable of handling higher resolutions without losing too much performance. (explain)

Radeon HD 6870 28800 Mpixels/sec
GeForce GTX 950M 14624 Mpixels/sec
Difference: 14176 (97%)

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 6870

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 6870
Manufacturer nVidia AMD
Year March 12 2015 October 2010
Code Name GM107 Barts XT
Memory 2048 MB 1024 MB
Core Speed 914 MHz 900 MHz
Memory Speed 2000 MHz 4200 MHz
Power (Max TDP) 55 watts 151 watts
Bandwidth 32000 MB/sec 134400 MB/sec
Texel Rate 36560 Mtexels/sec 50400 Mtexels/sec
Pixel Rate 14624 Mpixels/sec 28800 Mpixels/sec
Unified Shaders 640 1120
Texture Mapping Units 40 56
Render Output Units 16 32
Bus Type DDR3 GDDR5
Bus Width 128-bit 256-bit
Fab Process 28 nm 40 nm
Transistors (Unknown) million 1700 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 maximum amount of data (measured in megabytes per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as 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 memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GTX 950M

Amazon.com

Check prices at:

Radeon HD 6870

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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