AMD Radeon Pro V620 vs AMD Radeon RX 6400

VS

AMD Radeon Pro V620

AMD Radeon RX 6400

We compared two Desktop platform GPUs: 32GB VRAM Radeon Pro V620 and 4GB VRAM Radeon RX 6400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro V620 's Advantages

More VRAM (32GB vs 4GB)

Larger VRAM bandwidth (512.0GB/s vs 128.0GB/s)

3840 additional rendering cores

AMD Radeon RX 6400 's Advantages

Boost Clock has increased by 6% (2321MHz vs 2200MHz)

Lower TDP (53W vs 300W)

Score

Benchmark

FP32 (float)

Radeon Pro V620 +468%

20.28 TFLOPS

Radeon RX 6400

3.565 TFLOPS

Radeon Pro V620

VS

Radeon RX 6400

Graphics Card

Nov 2021

Release Date

Jan 2022

Radeon Pro

Generation

Navi II

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x4

Clock Speeds

1825 MHz

Base Clock

1923 MHz

2200 MHz

Boost Clock

2321 MHz

2000 MHz

Memory Clock

2000 MHz

Memory

32GB

Memory Size

4GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

64bit

512.0GB/s

Bandwidth

128.0GB/s

Render Config

72

Compute Units

12

-

4608

Shading Units

768

288

TMUs

48

128

ROPs

32

-

72

RT Cores

12

128 KB per Array

L1 Cache

128 KB per Array

4 MB

L2 Cache

1024 KB

128 MB

L3 Cache

16 MB

Theoretical Performance

281.6 GPixel/s

Pixel Rate

74.27 GPixel/s

633.6 GTexel/s

Texture Rate

111.4 GTexel/s

40.55 TFLOPS

FP16 (half)

7.130 TFLOPS

20.28 TFLOPS

FP32 (float)

3.565 TFLOPS

1267 GFLOPS

FP64 (double)

222.8 GFLOPS

Board Design

300W

TDP

53W

700 W

Suggested PSU

250 W

No outputs

Outputs

1x HDMI 2.1 1x DisplayPort 1.4a

2x 8-pin

Power Connectors

None

Graphics Processor

Navi 21

GPU Name

Navi 24

Navi 21 XT (215-121000177)

GPU Variant

Navi 24 XL (215-135000046)

RDNA 2.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

6 nm

26.8 billion

Transistors

5.4 billion

520 mm²

Die Size

107 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.2

1.3

Vulkan

1.3

-

6.5

Shader Model

6.7

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