AMD Radeon Pro W6800X Duo vs AMD Radeon HD 6850

VS

AMD Radeon Pro W6800X Duo

AMD Radeon HD 6850

We compared two Desktop platform GPUs: 32GB VRAM Radeon Pro W6800X Duo and 1024MB VRAM Radeon HD 6850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro W6800X Duo 's Advantages

Released 10 years and 10 months late

Boost Clock1967MHz

More VRAM (32GB vs 1024GB)

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

2880 additional rendering cores

AMD Radeon HD 6850 's Advantages

Lower TDP (127W vs 400W)

Score

Benchmark

FP32 (float)

Radeon Pro W6800X Duo +915%

15.11 TFLOPS

Radeon HD 6850

1.488 TFLOPS

Radeon Pro W6800X Duo

VS

Radeon HD 6850

Graphics Card

Aug 2021

Release Date

Oct 2010

Radeon Pro Mac

Generation

Northern Islands

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

1000 MHz

Memory

32GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

256bit

512.0GB/s

Bandwidth

128.0GB/s

Render Config

60

Compute Units

12

-

3840

Shading Units

960

240

TMUs

48

96

ROPs

32

-

60

RT Cores

-

128 KB per Array

L1 Cache

8 KB (per CU)

4 MB

L2 Cache

512 KB

128 MB

L3 Cache

-

Theoretical Performance

188.8 GPixel/s

Pixel Rate

24.80 GPixel/s

472.1 GTexel/s

Texture Rate

37.20 GTexel/s

30.21 TFLOPS

FP16 (half)

-

15.11 TFLOPS

FP32 (float)

1488 GFLOPS

944.2 GFLOPS

FP64 (double)

-

Board Design

400W

TDP

127W

800 W

Suggested PSU

300 W

1x HDMI 2.1 4x Thunderbolt

Outputs

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

None

Power Connectors

1x 6-pin

Graphics Processor

Navi 21

GPU Name

Barts

Navi 21 Pro-XLA

GPU Variant

Barts PRO (215-0798006)

RDNA 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

7 nm

Process Size

40 nm

26.8 billion

Transistors

1.7 billion

520 mm²

Die Size

255 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

1.3

Vulkan

N/A

-

6.7

Shader Model

5.0

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