RTX A40 vs Radeon HD 6550D

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Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking1092not rated
Place by popularitynot in top-100not in top-100
Power efficiency1.15no data
ArchitectureTeraScale 2 (2009−2015)Ampere (2020−2024)
GPU code nameSumoGA102
Market segmentDesktopWorkstation
Release date20 June 2011 (13 years ago)5 October 2020 (4 years ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores40010752
Core clock speed600 MHz1305 MHz
Boost clock speedno data1755 MHz
Number of transistors1,178 million28,300 million
Manufacturing process technology32 nm8 nm
Power consumption (TDP)65 Watt300 Watt
Texture fill rate12.00589.7
Floating-point processing power0.48 TFLOPS37.74 TFLOPS
ROPs8112
TMUs20336
Tensor Coresno data336
Ray Tracing Coresno data84

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

InterfaceIGPPCIe 4.0 x16
Lengthno data267 mm
WidthIGP2-slot
Supplementary power connectorsno data8-pin EPS

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeSystem SharedGDDR6
Maximum RAM amountSystem Shared48 GB
Memory bus widthSystem Shared384 Bit
Memory clock speedSystem Shared1812 MHz
Memory bandwidthno data695.8 GB/s
Shared memory+-

Connectivity and outputs

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 ConnectorsNo outputs3x DisplayPort

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX11.2 (11_0)12 Ultimate (12_2)
Shader Model5.06.5
OpenGL4.44.6
OpenCL1.22.0
VulkanN/A1.2
CUDA-8.6

Pros & cons summary


Recency 20 June 2011 5 October 2020
Chip lithography 32 nm 8 nm
Power consumption (TDP) 65 Watt 300 Watt

HD 6550D has 361.5% lower power consumption.

RTX A40, on the other hand, has an age advantage of 9 years, and a 300% more advanced lithography process.

We couldn't decide between Radeon HD 6550D and RTX A40. We've got no test results to judge.

Be aware that Radeon HD 6550D is a desktop card while RTX A40 is a workstation one.


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

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AMD Radeon HD 6550D
Radeon HD 6550D
NVIDIA RTX A40
RTX A40

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


3 91 vote

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1.4 394 votes

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Questions & comments

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