Tesla K20s vs Radeon R5 330 OEM

Primary details

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

Place in the rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
ArchitectureGCN 1.0 (2011−2020)Kepler (2012−2018)
GPU code nameHainanGK110
Market segmentDesktopWorkstation
Release date5 May 2015 (9 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 cores3202496
Core clock speed830 MHz575 MHz
Boost clock speed855 MHzno data
Number of transistors690 million7,080 million
Manufacturing process technology28 nm28 nm
Power consumption (TDP)50 Watt225 Watt
Texture fill rate17.10119.6
Floating-point processing power0.5472 TFLOPS2.87 TFLOPS
ROPs840
TMUs20208

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 3.0 x8PCIe 2.0 x16
Lengthno data267 mm
Width1-slot2-slot
Supplementary power connectorsNoneno data

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 typeDDR3GDDR5
Maximum RAM amount2 GB5 GB
Memory bus width64 Bit320 Bit
Memory clock speed900 MHz1300 MHz
Memory bandwidth14.4 GB/s208.0 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 outputsNo outputs

API compatibility

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

DirectX12 (11_1)12 (11_0)
Shader Model5.15.1
OpenGL4.64.6
OpenCL1.21.2
Vulkan1.2.1311.1.126
CUDA-3.5

Pros & cons summary


Recency 5 May 2015 18 February 2013
Maximum RAM amount 2 GB 5 GB
Power consumption (TDP) 50 Watt 225 Watt

R5 330 OEM has an age advantage of 2 years, and 350% lower power consumption.

Tesla K20s, on the other hand, has a 150% higher maximum VRAM amount.

We couldn't decide between Radeon R5 330 OEM and Tesla K20s. We've got no test results to judge.

Be aware that Radeon R5 330 OEM 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 R5 330 OEM
Radeon R5 330 OEM
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.


3.3 14 votes

Rate Radeon R5 330 OEM 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.