AMD HD 6950M vs ATI Mobility HD 3870 X2

General info

Comparison of graphics card architecture, market segment, value for money and other general parameters.

Place in our rating
Value for money (0-100)
no data
Terascale 2
GPU code name
Blackcomb Pro
Market segment
Launch date
6 January 2011 (10 years ago)
1 September 2008 (12 years ago)
Price now
no data

Technical specs

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores
Core clock speed
580 MHz
660 MHz
Number of transistors
1,700 million
666 million
Manufacturing process technology
40 nm
55 nm
Thermal design power (TDP)
50 Watt
110 Watt
Texture fill rate
Floating-point performance
1,113.6 gflops
2x 422.4 gflops

Compatibility, dimensions and requirements

Information on Radeon HD 6950M and Mobility Radeon HD 3870 X2 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.

Laptop size
MXM-B (3.0)
PCIe 2.0 x16


Parameters of memory installed: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors have no dedicated VRAM and use a shared part of system RAM.

Memory type
Maximum RAM amount
2 GB
512 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
900 MHz
850 MHz
Memory bandwidth
115.2 GB/s
54.4 GB/s
Shared memory

Video outputs and ports

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors
No outputs
No outputs

API support

APIs supported, including particular versions of those APIs.

11.2 (11_0)
10.1 (10_1)
Shader Model

Benchmark performance

Non-gaming benchmark performance comparison. Note that overall benchmark performance is measured in points in 0-100 range.

Overall score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

HD 6950M 7.37 +3.4%
ATI Mobility HD 3870 X2 7.13

3DMark Vantage Performance

3DMark Vantage is an outdated DirectX 10 benchmark using 1280x1024 screen resolution. It taxes the graphics card with two scenes, one depicting a girl escaping some militarized base located within a sea cave, the other displaying a space fleet attack on a defenseless planet. It was discontinued in April 2017, and Time Spy benchmark is now recommended to be used instead.

HD 6950M 10122 +46.8%
ATI Mobility HD 3870 X2 6895

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Both graphics cards satisfy the 79% minimum and 67% recommended requirements of all games known to us.


Competitors of Radeon HD 6950M from NVIDIA

We believe that the nearest equivalent to Radeon HD 6950M from NVIDIA is GeForce GTX 670MX, which is nearly equal in speed and lower by 1 position in our rating.

Here are some closest NVIDIA rivals to Radeon HD 6950M:

Competitors of Mobility Radeon HD 3870 X2 from NVIDIA

We believe that the nearest equivalent to Mobility Radeon HD 3870 X2 from NVIDIA is GeForce GTX 675M, which is nearly equal in speed and higher by 2 positions in our rating.

Here are some closest NVIDIA rivals to Mobility Radeon HD 3870 X2:

Advantages of AMD Radeon HD 6950M

3.4% better performance in benchmarks

Much newer (6 January 2011 vs 1 September 2008)

More pipelines (960 vs 640)

Higher memory bandwidth (115.2 vs 54.4 GB/s)

Finer manufacturing process technology (40 vs 55 nm)

Lower power consumption (50W vs 110W), meaning that the rival with higher TDP might require a better cooler or other thermal solution.

Advantages of ATI Mobility Radeon HD 3870 X2

We are unaware of any advantages of ATI Mobility Radeon HD 3870 X2 over AMD Radeon HD 6950M.

So, which one is the better GPU?

Technical City couldn't decide between AMD Radeon HD 6950M and ATI Mobility Radeon HD 3870 X2. The differences in performance seem too small.

Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

Cast your vote

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.

AMD Radeon HD 6950M
ATI Mobility Radeon HD 3870 X2

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