ATI Radeon 9550 SE vs Tesla K20c

Primary details

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

Place in the ranking487not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.36no data
Power efficiency2.76no data
ArchitectureKepler (2012−2018)Rage 8 (2002−2007)
GPU code nameGK110RV350
Market segmentWorkstationDesktop
Release date12 November 2012 (12 years ago)1 March 2003 (21 year ago)
Launch price (MSRP)$3,199 no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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 cores2496no data
Core clock speed706 MHz250 MHz
Number of transistors7,080 million60 million
Manufacturing process technology28 nm130 nm
Power consumption (TDP)225 Wattno data
Texture fill rate146.81.000
Floating-point processing power3.524 TFLOPSno data
ROPs404
TMUs2084

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).

InterfacePCIe 2.0 x16AGP 8x
Length267 mmno data
Width2-slot1-slot
Supplementary power connectors1x 6-pin + 1x 8-pinNone

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 typeGDDR5DDR
Maximum RAM amount5 GB64 MB
Memory bus width320 Bit64 Bit
Memory clock speed1300 MHz200 MHz
Memory bandwidth208.0 GB/s3.2 GB/s

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 outputs1x DVI, 1x VGA, 1x S-Video

API compatibility

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

DirectX12 (11_0)9.0 (9_0)
Shader Model5.1no data
OpenGL4.62.0
OpenCL1.2N/A
Vulkan1.1.126N/A
CUDA3.5-

Pros & cons summary


Recency 12 November 2012 1 March 2003
Maximum RAM amount 5 GB 64 MB
Chip lithography 28 nm 130 nm

Tesla K20c has an age advantage of 9 years, a 7900% higher maximum VRAM amount, and a 364.3% more advanced lithography process.

We couldn't decide between Tesla K20c and Radeon 9550 SE. We've got no test results to judge.

Be aware that Tesla K20c is a workstation graphics card while Radeon 9550 SE is a desktop 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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NVIDIA Tesla K20c
Tesla K20c
ATI Radeon 9550 SE
Radeon 9550 SE

Comparisons with similar GPUs

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Community ratings

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


4.7 12 votes

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4.3 6 votes

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Questions & comments

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