AMD Radeon RX 6900 XTX vs AMD Radeon Pro V420

VS

AMD Radeon RX 6900 XTX

AMD Radeon Pro V420

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XTX and 32GB VRAM AMD Radeon Pro V420 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6900 XTX 's Advantages

Boost Clock has increased by 43% (2435MHz vs 1700MHz)

1024 additional rendering cores

AMD Radeon Pro V420 's Advantages

More VRAM (32GB vs 16GB)

Larger VRAM bandwidth (819.2GB/s vs 576.0GB/s)

Lower TDP (300W vs 330W)

Score

Benchmark

FP32 (float)

Radeon RX 6900 XTX +78%

24.93 TFLOPS

AMD Radeon Pro V420

13.93 TFLOPS

Radeon RX 6900 XTX

VS

AMD Radeon Pro V420

Graphics Card

Unknown

Release Date

Unknown

Navi II

Generation

Radeon Pro Vega

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

2075 MHz

Base Clock

800 MHz

2435 MHz

Boost Clock

1700 MHz

2250 MHz

Memory Clock

800 MHz

Memory

16GB

Memory Size

32GB

GDDR6

Memory Type

HBM2

256bit

Memory Bus

4096bit

576.0GB/s

Bandwidth

819.2GB/s

Render Config

80

Compute Units

64

-

5120

Shading Units

4096

320

TMUs

256

128

ROPs

64

-

80

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

4 MB

128 MB

L3 Cache

-

Theoretical Performance

311.7 GPixel/s

Pixel Rate

108.8 GPixel/s

779.2 GTexel/s

Texture Rate

435.2 GTexel/s

49.87 TFLOPS

FP16 (half)

27.85 TFLOPS

24.93 TFLOPS

FP32 (float)

13.93 TFLOPS

1.558 TFLOPS

FP64 (double)

6.963 TFLOPS

Board Design

330W

TDP

300W

700 W

Suggested PSU

700 W

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

Outputs

6x mini-DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Navi 21

GPU Name

Vega 20

Navi 21 XTXH (215-121000247)

GPU Variant

Vega 20 GLXT WS (215-0914026)

RDNA 2.0

Architecture

GCN 5.1

TSMC

Foundry

TSMC

7 nm

Process Size

7 nm

26.8 billion

Transistors

13.23 billion

520 mm²

Die Size

331 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_1)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.3

Vulkan

1.3

-

6.5

Shader Model

6.7

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