AMD Radeon HD 8400 vs NVIDIA Tesla K20m
Comparison of Radeon HD 8400 and Tesla K20m architecture, market type and release date.
Place in performance rating
23 May 2013
5 January 2013
Launch price (MSRP)
Radeon HD 8400 and Tesla K20m's general performance parameters such as number of shaders, GPU core clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of Radeon HD 8400 and Tesla K20m's performance, but for precise assessment you have to consider its benchmark and gaming test results.
Core clock speed
Manufacturing process technology
Power consumption (TDP)
Texture fill rate
146.8 GTexel / s
Compatibility, dimensions and requirements
Information on Radeon HD 8400 and Tesla K20m compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). 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.
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
Parameters of memory installed on Radeon HD 8400 and Tesla K20m: 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.
Maximum RAM amount
Memory bus width
Memory clock speed
208.0 GB / s
Video outputs and ports
Types and number of video connectors present on Radeon HD 8400 and Tesla K20m.
APIs supported by Radeon HD 8400 and Tesla K20m, sometimes including their particular versions.
DirectX 11.1, Shader 5.0
Rendering quality tests
GFXBench render quality
GFXBench high precision render quality
Advantages of AMD Radeon HD 8400
Somewhat newer (23 May 2013 vs 5 January 2013)
Advantages of NVIDIA Tesla K20m
More pipelines (2496 vs 128)
So, HD 8400 or Tesla K20m?
Technical City couldn't decide between AMD Radeon HD 8400 and NVIDIA Tesla K20m. We've got no test results to judge.
Be aware that Radeon HD 8400 is a notebook card while Tesla K20m is a workstation one.
Should you still have questions on choice between Radeon HD 8400 and Tesla K20m, ask them in Comments section, and we shall answer.