NVIDIA Quadro K620M

NVIDIA Quadro K620M

The Nvidia Quadro K620M is a DirectX 11 and OpenGL 4.5-compatible graphics card for mobile workstations. It is a Maxwell-based GPU built on the GM108 chip with 384 shader cores and manufactured in 28 nm by TSMC. The Quadro K620M is the successor to the significantly slower Quadro K610M. Usually, the GPU comes with 2 GB DDR3 memory clocked at 1000 MHz (2000 MHz effective, 16 GB/s). 

The Quadro series offers certified drivers that are optimized for stability and performance in professional applications like CAD or DCC. OpenGL performance, for example, should be significantly better than with GeForce graphics cards of similar specifications.


Compared to Kepler, Maxwell has been optimized in several details to increase power efficiency. Smaller Streaming Multiprocessors (SMM) with only 128 ALUs (Kepler: 192) and an optimized scheduler should lead to better utilization of the shaders. Nvidia promises that a Maxwell SMM with 128 ALUs can offer 90% of the performance of a Kepler SMX with 192 ALUs. GM108 features 3 SMMs and thus 384 shader cores, 24 TMUs and 8 ROPs (64-bit interface).

Another optimization is the massively enlarged L2 cache. The larger size can reduce some of the memory traffic to allow for a relatively narrow memory interface without significantly hurting performance.

GM108 supports DirectX 11.2 (feature level 11.0 only) as well as DirectX 12.


Due to their identical specifications, the Quadro K620M offers a similar 3D gaming performance as the consumer GeForce 840M. Most games from 2014/2015 will run fluently in low or medium settings. Compared to other Quadro GPUs, the K620M performs almost similar to the older K1100M.


The feature set should include support for up to 4 active displays. High-resolution monitors of up to 3840x2160 pixels can be connected using DisplayPort 1.2 or HDMI 1.4a (HDMI 2.0 not supported). HD-Audio codecs, such as Dolby TrueHD and DTS-HD, can be transmitted via bitstream mode through the HDMI port. However, as most laptops will feature Optimus, the integrated GPU will likely have direct control over the display ports and may limit the feature set available by the Nvidia Kepler cards.

Using CUDA or OpenCL, the cores of the Quadro K620M can be used for general calculations.

GM108 integrates the sixth generation of the PureVideo HD video engine (VP6), offering a better decoding performance for H.264 and MPEG-2 videos. Of course, VP6 supports all features of previous generations (4K support, PIP, video encoding via NVENC API).

Power Consumption

The power consumption of the Quadro K620M should be about 30 W including the board and memory components. Therefore, the GPU is best suited for laptops 13 - 14-inches in size and above. The K620M also supports Optimus to automatically switch between an integrated graphics card and the Nvidia GPU.

Quadro K Series
Quadro K5100M (compare) 1536 @ 771 MHz256 Bit @ 3600 MHz
Quadro K5000M (compare) 1344 @ 706 MHz256 Bit @ 3000 MHz
Quadro K4100M (compare) 1152 @ 706 MHz256 Bit @ 3200 MHz
Quadro K4000M (compare) 960 @ 600 MHz256 Bit @ 2800 MHz
Quadro K3100M (compare) 768 @ 706 MHz256 Bit @ 3200 MHz
Quadro K3000M (compare) 576 @ 654 MHz256 Bit @ 2800 MHz
Quadro K2100M (compare) 576 @ 667 MHz128 Bit @ 3000 MHz
Quadro K1100M (compare) 384 @ 705 MHz128 Bit @ 2800 MHz
Quadro K620M 384 @ 1029 - 1124 (Boost) MHz64 Bit @ 2000 MHz
Quadro K2000M (compare) 384 @ 745 MHz128 Bit @ 1800 MHz
Quadro K1000M (compare) 192 @ 850 MHz128 Bit @ 1800 MHz
Quadro K610M (compare) 192 @ 954 MHz64 Bit @ 2600 MHz
Quadro K510M (compare) 192 @ 846 MHz64 Bit @ 2400 MHz
Quadro K500M (compare) 192 @ 850 MHz64 Bit @ 1800 MHz
Pipelines384 - unified
Core Speed1029 - 1124 (Boost) MHz
Memory Speed2000 MHz
Memory Bus Width64 Bit
Memory TypeDDR3
Max. Amount of Memory2048 MB
Shared Memoryno
DirectXDirectX 11, Shader 5.0
technology28 nm
FeaturesOptimus, PhysX, CUDA, OpenCL, 3D Vision, 3DTV Play
Date of Announcement01.03.2015
Link to Manufacturer Page


3DMark Vantage
P Result 1280x1024 +
P GPU no PhysX 1280x1024 +
3DMark 06 Standard 1280x1024 +
SPECviewperf 11
Siemens NX 1920x1080 +
Tcvis 1920x1080 +
SolidWorks 1920x1080 +
Pro/ENGINEER 1920x1080 +
Maya 1920x1080 +
Lightwave 1920x1080 +
Ensight 1920x1080 +
Catia 1920x1080 +
SPECviewperf 12
Solidworks (sw-03) 1900x1060 +
Siemens NX (snx-02) 1900x1060 +
Showcase (showcase-01) 1900x1060 +
Medical (medical-01) 1900x1060 +
Maya (maya-04) 1900x1060 +
Energy (energy-01) 1900x1060 +
Creo (creo-01) 1900x1060 +
Catia (catia-04) 1900x1060 +
Cinebench R10 Shading 32Bit +
Cinebench R11.5 OpenGL 64Bit +
Cinebench R15
OpenGL 64Bit +
Ref. Match 64Bit +
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

Game Benchmarks

The following benchmarks stem from our benchmarks of review laptops. The performance depends on the used graphics memory, clock rate, processor, system settings, drivers, and operating systems. So the results don't have to be representative for all laptops with this GPU. For detailed information on the benchmark results, click on the fps number.

low 1024x768
35  fps    + Compare
med. 1366x768
23  fps    + Compare
high 1920x1080
10  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
low 1024x768
151  fps    + Compare
med. 1366x768
76  fps    + Compare
high 1920x1080
32  fps    + Compare