Matrox G550 PCIe vs Tesla K20X

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
ArchitectureKepler (2012−2018)G500 (2001−2005)
GPU code nameGK110Condor
Market segmentWorkstationDesktop
Release date12 November 2012 (11 years ago)13 July 2005 (19 years ago)
Launch price (MSRP)$7,699 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 cores2688no data
Core clock speed732 MHz125 MHz
Number of transistors7,080 million10 million
Manufacturing process technology28 nm180 nm
Power consumption (TDP)235 Wattno data
Texture fill rate164.00.25
Floating-point processing power3.935 TFLOPSno data
ROPs482
TMUs2242

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 x16PCIe 1.0 x1
Length267 mm112 mm
Width2-slot1-slot
Supplementary power connectors1x 6-pin + 1x 8-pinno 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 typeGDDR5DDR
Maximum RAM amount6 GB32 MB
Memory bus width384 Bit64 Bit
Memory clock speed1300 MHz166 MHz
Memory bandwidth249.6 GB/s2.656 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 outputs2x DVI

API compatibility

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

DirectX12 (11_0)8.0
Shader Model5.1no data
OpenGL4.61.5
OpenCL1.2N/A
Vulkan1.1.126N/A
CUDA3.5-

Pros & cons summary


Recency 12 November 2012 13 July 2005
Maximum RAM amount 6 GB 32 MB
Chip lithography 28 nm 180 nm

Tesla K20X has an age advantage of 7 years, a 19100% higher maximum VRAM amount, and a 542.9% more advanced lithography process.

We couldn't decide between Tesla K20X and Matrox G550 PCIe. We've got no test results to judge.

Be aware that Tesla K20X is a workstation graphics card while Matrox G550 PCIe 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 K20X
Tesla K20X
Matrox G550 PCIe
G550 PCIe

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