AMD Radeon Pro W6800X Duo vs ATI Radeon HD 3850 X3

VS

AMD Radeon Pro W6800X Duo

ATI Radeon HD 3850 X3

We compared two Desktop platform GPUs: 32GB VRAM Radeon Pro W6800X Duo and 512MB VRAM Radeon HD 3850 X3 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro W6800X Duo 's Advantages

Boost Clock1967MHz

More VRAM (32GB vs 512GB)

Larger VRAM bandwidth (512.0GB/s vs 54.40GB/s)

3520 additional rendering cores

ATI Radeon HD 3850 X3 's Advantages

Lower TDP (145W vs 400W)

Score

Benchmark

FP32 (float)

Radeon Pro W6800X Duo +3430%

15.11 TFLOPS

Radeon HD 3850 X3

0.428 TFLOPS

Radeon Pro W6800X Duo

VS

Radeon HD 3850 X3

Graphics Card

Aug 2021

Release Date

Unknown

Radeon Pro Mac

Generation

Radeon R600

Desktop

Type

Desktop

Apple MPX

Bus Interface

PCIe 2.0 x16

Clock Speeds

1800 MHz

Base Clock

-

1967 MHz

Boost Clock

-

2000 MHz

Memory Clock

850 MHz

Memory

32GB

Memory Size

512MB

GDDR6

Memory Type

GDDR3

256bit

Memory Bus

256bit

512.0GB/s

Bandwidth

54.40GB/s

Render Config

60

Compute Units

4

-

3840

Shading Units

320

240

TMUs

16

96

ROPs

16

-

60

RT Cores

-

128 KB per Array

L1 Cache

-

4 MB

L2 Cache

256 KB

128 MB

L3 Cache

-

Theoretical Performance

188.8 GPixel/s

Pixel Rate

10.70 GPixel/s

472.1 GTexel/s

Texture Rate

10.70 GTexel/s

30.21 TFLOPS

FP16 (half)

-

15.11 TFLOPS

FP32 (float)

428.2 GFLOPS

944.2 GFLOPS

FP64 (double)

-

Board Design

400W

TDP

145W

800 W

Suggested PSU

300 W

1x HDMI 2.1 4x Thunderbolt

Outputs

4x DVI

None

Power Connectors

1x 8-pin

Graphics Processor

Navi 21

GPU Name

RV670

Navi 21 Pro-XLA

GPU Variant

RV670 PRO (215-0708003)

RDNA 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

7 nm

Process Size

55 nm

26.8 billion

Transistors

0.666 billion

520 mm²

Die Size

192 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

2.1

OpenCL

N/A

1.3

Vulkan

N/A

-

6.7

Shader Model

4.1

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