NVIDIA GeForce GTX 980 SLI Mobile vs AMD Radeon HD 6550M

General info

Comparison of GeForce GTX 980 SLI Mobile and Radeon HD 6550M architecture, market type and release date.
Place in performance rating
Value for money (0-100)
Terascale 2
Code name
Release date
22 September 2015
26 November 2010
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Technical specs

GeForce GTX 980 SLI Mobile and Radeon HD 6550M's general performance parameters such as number of shaders, GPU core clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of GeForce GTX 980 SLI Mobile and Radeon HD 6550M's performance, but for precise assessment you have to consider its benchmark and gaming test results.
Core clock speed
1126 MHz
600 MHz
Boost Clock
1228 MHz
no data
Transistor count
10400 Million
2,154 million
Manufacturing process technology
28 nm
40 nm
Power consumption (TDP)
330 Watt
26 Watt
Texture fill rate
no data
Floating-point performance
no data
480.0 gflops

Compatibility, dimensions and requirements

Information on GeForce GTX 980 SLI Mobile and Radeon HD 6550M 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
medium sized
no data
SLI options


Parameters of memory installed on GeForce GTX 980 SLI Mobile and Radeon HD 6550M: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors don't have dedicated memory and use a shared part of system RAM.
Memory type
Maximum RAM amount
2x 8 GB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
3500 MHz
800 MHz
Memory bandwidth
no data
28.8 GB/s
Shared memory

Video outputs and ports

Types and number of video connectors present on GeForce GTX 980 SLI Mobile and Radeon HD 6550M. As a rule, this section is relevant only for desktop reference video cards, since for notebook ones the availability of certain video outputs depends on the laptop model.
Display Connectors
no data
No outputs
G-SYNC support

API support

APIs supported by GeForce GTX 980 SLI Mobile and Radeon HD 6550M, sometimes including their particular versions.
DirectX 12_1
11.2 (11_0)
Shader Model
no data
no data
no data

Benchmark performance

Non-gaming benchmarks performance of GeForce GTX 980 SLI Mobile and Radeon HD 6550M. Note that overall benchmark performance is measured in points in 0-100 range.

Overall benchmark performance

GTX 980 SLI Mobile 58.82 +1698.8%
HD 6550M 3.27

3DMark 11 Performance GPU

GTX 980 SLI Mobile 33169 +3240.3%
HD 6550M 993

3DMark Vantage Performance

GTX 980 SLI Mobile 47704 +1178.6%
HD 6550M 3731

Gaming performance

Let's see how good GeForce GTX 980 SLI Mobile and Radeon HD 6550M are for gaming. Particular gaming benchmark results are measured in FPS.

Advantages of NVIDIA GeForce GTX 980 SLI Mobile

1698.8% faster (about 18 times) in synthetic tests
Much newer (22 September 2015 vs 26 November 2010)
Wider memory bus (256 vs 128 bit)
More pipelines (4096 vs 400)
Finer manufacturing process technology (28 vs 40 nm)
CUDA (Compute Unified Device Architecture - an API for video card computing power usage in tasks different from 3D graphics processing. Can be used for physics simulation for instance)
PhysX (hardware acceleration of physical simulation engine named PhysX)
G-SYNC (removes screen tearing by telling the display when to renew the image. Only works with G-SYNC compatible displays)

Advantages of AMD Radeon HD 6550M

Less power hungry (26 vs 330 watts)

So, GTX 980 SLI Mobile or HD 6550M?

Judging by the results of synthetic and gaming tests, Technical City recommends NVIDIA GeForce GTX 980 SLI Mobile.
Should you still have questions on choice between GeForce GTX 980 SLI Mobile and Radeon HD 6550M, ask them in Comments section, and we shall answer.

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