NVIDIA Quadro K620 vs NVIDIA RTX A4000

Compare NVIDIA Quadro K620 2 GB vs NVIDIA RTX A4000 16 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

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Specifications
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NVIDIA RTX A4000

Price

The cheapest price from our partner retailers

$ 70.99

$ 1314.01 significantly less expensive

$ 1385.00

Benchmark Score

Overall Score

General gaming and workstation score

306 points

7111 points

2223% significantly better overall score

Flux Core frame rate

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

7 FPS

175 FPS

168 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

5 FPS

88 FPS

83 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

4 FPS

119 FPS

115 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

4 FPS

65 FPS

61 FPS significantly higher Clouds frame rate

Free GPU Benchmark

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Other Benchmarks

Blender score

Cycles Render (Samples per minute)

58.07 points

3139.35 points

5306% significantly higher Blender score

Geekbench 5 (CUDA) score

CUDA compute benchmark

6653 points

124547 points

1772% significantly higher Geekbench 5 (CUDA) score

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

6869 points

116149 points

1590% significantly higher Geekbench 5 (OpenCL) score

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

6567 points

83390 points

1169% significantly higher Geekbench 5 (Vulkan) score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

6697 points

122638 points

1731% significantly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

5877 points

127645 points

2071% significantly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

1000 MHz

36% slightly higher core clock speed

735 MHz

Boost Clock Speed

Higher turbo frequency when power conditions are met

1124 MHz

1560 MHz

38% slightly higher boost clock speed

Memory

Onboard memory size for textures and vertices

2 GiB

16 GiB

700% significantly more memory

Memory Bus Width

Number of parallel lines to the memory chips

128 Bit

256 Bit

100% significantly larger memory bus width

Memory Bandwidth

Data transfer speed between GPU core and memory

28.8 GB/s

448 GB/s

1455% significantly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

45 W

211% significantly lower TDP

140 W

Pixel Rate

Number of pixels that can be rendered per second

17.98 Gigapixels/s

149.8 Gigapixels/s

733% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

26.98 Gigatexels/s

299.5 Gigatexels/s

1010% significantly higher texture rate

Shading Units

Number of processors dedicated to shader processing

384

6144

1500% significantly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

192

700% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

499% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

376th of 586

66th of 586

Release date

The official date of release of this chip

2014 July

2021 April

Memory Type

The type of memory used by this chip

DDR3

GDDR6

DirectX Support

Maximum version of DirectX supported

11.0

12.0

OpenGL Support

Maximum version of OpenGL supported

4.5

4.6

Quadro K620 vs RTX A4000 comparison

According to the hardwareDB Benchmark, the RTX A4000 GPU is faster than the Quadro K620 in gaming.

Our database shows that 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. Despite this, the RTX A4000 has a slightly higher boost clock speed: the maximum frequency the chip can reach if power delivery and thermals allow.

Furthermore, the spec sheet for both these GPUs show that the RTX A4000 has significantly more memory with 16 GiB of memory compared to 2 GiB. Memory size doesn't directly affect performance, but too little memory will certainly degrade gaming performance.

In addition, the Quadro K620 has a significantly lower TDP at 45 W when compared to the RTX A4000 at 140 W. TDP (Thermal Design Power) measures total heat output from the chip.

In terms of raw gaming performance in our GPU benchmark, the RTX A4000 is better than the Quadro K620.