NVIDIA Quadro K420 vs NVIDIA Quadro P620

Compare NVIDIA Quadro K420 1 GB vs NVIDIA Quadro P620 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 P620

Price

The cheapest price from our partner retailers

$ 88.00

$ 70.00

$ 18.00 slightly less expensive

Benchmark Score

Overall Score

General gaming and workstation score

93 points

788 points

747% significantly better overall score

Flux Core frame rate

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

2 FPS

17 FPS

15 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

1 FPS

12 FPS

11 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

1 FPS

13 FPS

12 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

1 FPS

10 FPS

9 FPS significantly higher Clouds frame rate

Free GPU Benchmark

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Other Benchmarks

Geekbench 5 (CUDA) score

CUDA compute benchmark

1350 points

11727 points

768% significantly higher Geekbench 5 (CUDA) score

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

1507 points

12475 points

727% significantly higher Geekbench 5 (OpenCL) score

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

1740 points

11923 points

585% significantly higher Geekbench 5 (Vulkan) score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

1841 points

12054 points

554% significantly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

1838 points

11114 points

504% significantly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

780 MHz

1266 MHz

62% significantly 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

80.13 GB/s

181% significantly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

41 W

40 W

2% slightly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

3.50 Gigapixels/s

21.66 Gigapixels/s

518% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

14.02 Gigatexels/s

43.33 Gigatexels/s

209% significantly higher texture rate

Shading Units

Number of processors dedicated to shader processing

192

512

166% significantly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

100% 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

511th of 586

281st of 586

Release date

The official date of release of this chip

2014 July

2018 February

Memory Type

The type of memory used by this chip

DDR3

GDDR5

DirectX Support

Maximum version of DirectX supported

11.0

12.0

OpenGL Support

Maximum version of OpenGL supported

4.5

Quadro K420 vs Quadro P620 benchmarks

For gaming, the Quadro P620 graphics card is better than the Quadro K420 in our tests.

Our database shows that the Quadro P620 has a significantly 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.

Next up, in terms of GPU memory, the Quadro P620 has significantly more memory with 2 GiB of memory compared to 1 GiB. Memory size doesn't directly affect performance, but too little memory will certainly degrade gaming performance.

In addition, the Quadro P620 has a slightly lower TDP at 40 W when compared to the Quadro K420 at 41 W. Heat output doesn't match power consumption directly but, it's a good estimate.

In conclusion, all specs and GPU benchmarks considered, will recommend the Quadro P620 over the Quadro K420.