NVIDIA Quadro K420 vs NVIDIA Quadro K620

Compare NVIDIA Quadro K420 1 GB vs NVIDIA Quadro K620 2 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

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Other Benchmarks
Specifications
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NVIDIA Quadro K620

Price

The cheapest price from our partner retailers

$ 88.00

$ 70.99

$ 17.01 slightly less expensive

Benchmark Score

Overall Score

General gaming and workstation score

93 points

306 points

229% significantly better overall score

Flux Core frame rate

Volumetric ray casting test, a computationally expensive method of rendering high-quality scenes

2 FPS

7 FPS

4 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

1 FPS

5 FPS

4 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

1 FPS

4 FPS

3 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

1 FPS

4 FPS

3 FPS significantly higher Clouds frame rate

Free GPU Benchmark

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Other Benchmarks

Geekbench 5 (CUDA) score

CUDA compute benchmark

1350 points

6653 points

392% significantly higher Geekbench 5 (CUDA) score

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

1507 points

6869 points

355% significantly higher Geekbench 5 (OpenCL) score

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

1740 points

6567 points

277% significantly higher Geekbench 5 (Vulkan) score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

1841 points

6697 points

263% significantly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

1838 points

5877 points

219% significantly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

780 MHz

1000 MHz

28% slightly higher core clock speed

Memory

Onboard memory size for textures and vertices

1 GiB

2 GiB

100% significantly more memory

Memory Bus Width

Number of parallel lines to the memory chips

128 Bit

Identical

128 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

28.51 GB/s

28.8 GB/s

1% slightly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

41 W

9% slightly lower TDP

45 W

Pixel Rate

Number of pixels that can be rendered per second

3.50 Gigapixels/s

17.98 Gigapixels/s

413% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

14.02 Gigatexels/s

26.98 Gigatexels/s

92% significantly higher texture rate

Shading Units

Number of processors dedicated to shader processing

192

384

100% significantly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

49% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

Identical

Other details

Rank

Ranking in the hardwareDB database

506th of 586

375th of 586

Release date

The official date of release of this chip

2014 July

Memory Type

The type of memory used by this chip

DDR3

DirectX Support

Maximum version of DirectX supported

11.0

OpenGL Support

Maximum version of OpenGL supported

4.5

Quadro K420 vs Quadro K620 specs and performance

For gaming, the Quadro K620 graphics card is better than the Quadro K420 in our tests.

In our comparison, the Quadro K620 has a slightly higher core clock speed. The core clock speed (or base speed) is the frequency at which the GPU core runs. This metric makes sense when comparing GPUs of a similar architecture or generation.

As stated by the manufacturer, the Quadro K620 has significantly more memory with 2 GiB of memory compared to 1 GiB. Lots of memory is good when playing at high resolutions or with many monitors.

In addition, the Quadro K420 has a slightly lower TDP at 41 W when compared to the Quadro K620 at 45 W. This is not a measure of performance, but rather the amount of heat generated by the chip when running at its highest speed.

In conclusion, all specs and GPU benchmarks considered, will recommend the Quadro K620 over the Quadro K420.