Tesla K20s vs Radeon HD 8450G

Primary details

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

Place in the ranking1121not rated
Place by popularitynot in top-100not in top-100
Power efficiency1.75no data
ArchitectureTeraScale 3 (2010−2013)Kepler (2012−2018)
GPU code nameScrapperGK110
Market segmentDesktopWorkstation
Release date23 May 2013 (11 years ago)18 February 2013 (11 years ago)
Launch price (MSRP)no data$3,199

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 cores1922496
Core clock speed533 MHz575 MHz
Boost clock speed720 MHzno data
Number of transistors1,303 million7,080 million
Manufacturing process technology32 nm28 nm
Power consumption (TDP)35 Watt225 Watt
Texture fill rate8.640119.6
Floating-point processing power0.2765 TFLOPS2.87 TFLOPS
ROPs440
TMUs12208

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 2.0 x16
Lengthno data267 mm
WidthIGP2-slot

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 SharedGDDR5
Maximum RAM amountSystem Shared5 GB
Memory bus widthSystem Shared320 Bit
Memory clock speedSystem Shared1300 MHz
Memory bandwidthno data208.0 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 outputsNo outputs

API compatibility

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

DirectX11.2 (11_0)12 (11_0)
Shader Model5.05.1
OpenGL4.44.6
OpenCL1.21.2
VulkanN/A1.1.126
CUDA-3.5

Pros & cons summary


Recency 23 May 2013 18 February 2013
Chip lithography 32 nm 28 nm
Power consumption (TDP) 35 Watt 225 Watt

HD 8450G has an age advantage of 3 months, and 542.9% lower power consumption.

Tesla K20s, on the other hand, has a 14.3% more advanced lithography process.

We couldn't decide between Radeon HD 8450G and Tesla K20s. We've got no test results to judge.

Be aware that Radeon HD 8450G is a desktop card while Tesla K20s is a workstation one.


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

Vote for your favorite

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


AMD Radeon HD 8450G
Radeon HD 8450G
NVIDIA Tesla K20s
Tesla K20s

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.


4.3 18 votes

Rate Radeon HD 8450G on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
5 1 vote

Rate Tesla K20s on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.