AMD Radeon Pro W6900X vs AMD Radeon RX 6600

VS

AMD Radeon Pro W6900X

AMD Radeon RX 6600

We compared two Desktop platform GPUs: 32GB VRAM Radeon Pro W6900X and 8GB VRAM Radeon RX 6600 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro W6900X 's Advantages

More VRAM (32GB vs 8GB)

Larger VRAM bandwidth (512.0GB/s vs 224.0GB/s)

3328 additional rendering cores

AMD Radeon RX 6600 's Advantages

Boost Clock has increased by 16% (2491MHz vs 2150MHz)

Lower TDP (132W vs 300W)

Score

Benchmark

FP32 (float)

Radeon Pro W6900X +146%

22.02 TFLOPS

Radeon RX 6600

8.928 TFLOPS

Radeon Pro W6900X

VS

Radeon RX 6600

Graphics Card

Aug 2021

Release Date

Oct 2021

Radeon Pro Mac

Generation

Navi II

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

1825 MHz

Base Clock

1626 MHz

2150 MHz

Boost Clock

2491 MHz

2000 MHz

Memory Clock

1750 MHz

Memory

32GB

Memory Size

8GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

128bit

512.0GB/s

Bandwidth

224.0GB/s

Render Config

80

Compute Units

28

-

5120

Shading Units

1792

320

TMUs

112

128

ROPs

64

-

80

RT Cores

28

128 KB per Array

L1 Cache

128 KB per Array

4 MB

L2 Cache

2 MB

128 MB

L3 Cache

32 MB

Theoretical Performance

275.2 GPixel/s

Pixel Rate

159.4 GPixel/s

688.0 GTexel/s

Texture Rate

279.0 GTexel/s

44.03 TFLOPS

FP16 (half)

17.86 TFLOPS

22.02 TFLOPS

FP32 (float)

8.928 TFLOPS

1376 GFLOPS

FP64 (double)

558.0 GFLOPS

Board Design

300W

TDP

132W

700 W

Suggested PSU

300 W

1x HDMI 2.1 4x Thunderbolt

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

None

Power Connectors

1x 8-pin

Graphics Processor

Navi 21

GPU Name

Navi 23

Navi 21 Pro-XTA

GPU Variant

Navi 23 XL (215-130000016)

RDNA 2.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

7 nm

26.8 billion

Transistors

11.06 billion

520 mm²

Die Size

237 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.3

Vulkan

1.3

-

6.5

Shader Model

6.5

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