AMD Radeon Pro W6400 vs AMD Radeon HD 6850 X2

VS

AMD Radeon Pro W6400

AMD Radeon HD 6850 X2

We compared two Desktop platform GPUs: 4GB VRAM Radeon Pro W6400 and 2GB VRAM Radeon HD 6850 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro W6400 's Advantages

Released 10 years and 4 months late

Boost Clock2331MHz

More VRAM (4GB vs 2GB)

Lower TDP (50W vs 254W)

AMD Radeon HD 6850 X2 's Advantages

Larger VRAM bandwidth (134.4GB/s vs 112.0GB/s)

192 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon Pro W6400 +133%

3.58 TFLOPS

Radeon HD 6850 X2

1.536 TFLOPS

Radeon Pro W6400

VS

Radeon HD 6850 X2

Graphics Card

Jan 2022

Release Date

Sep 2011

Radeon Pro

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x4

Bus Interface

PCIe 2.0 x16

Clock Speeds

2331 MHz

Base Clock

-

2331 MHz

Boost Clock

-

1750 MHz

Memory Clock

1050 MHz

Memory

4GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

64bit

Memory Bus

256bit

112.0GB/s

Bandwidth

134.4GB/s

Render Config

12

Compute Units

12

-

768

Shading Units

960

48

TMUs

48

32

ROPs

32

-

12

RT Cores

-

128 KB per Array

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

512 KB

8 MB

L3 Cache

-

Theoretical Performance

74.59 GPixel/s

Pixel Rate

25.60 GPixel/s

111.9 GTexel/s

Texture Rate

38.40 GTexel/s

7.161 TFLOPS

FP16 (half)

-

3.580 TFLOPS

FP32 (float)

1.536 TFLOPS

223.8 GFLOPS

FP64 (double)

-

Board Design

50W

TDP

254W

250 W

Suggested PSU

600 W

2x DisplayPort 1.4a

Outputs

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

None

Power Connectors

2x 8-pin

Graphics Processor

Navi 24

GPU Name

Barts

Navi 24 XL-W

GPU Variant

Barts PRO (215-0798006)

RDNA 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

6 nm

Process Size

40 nm

5.4 billion

Transistors

1.7 billion

107 mm²

Die Size

255 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.2

OpenCL

1.2

1.3

Vulkan

N/A

-

6.6

Shader Model

5.0

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