AMD Radeon Pro W6800X Duo vs AMD Radeon R9 390

VS

AMD Radeon Pro W6800X Duo

AMD Radeon R9 390

We compared two Desktop platform GPUs: 32GB VRAM Radeon Pro W6800X Duo and 8GB VRAM Radeon R9 390 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 6 years and 2 months late

Boost Clock1967MHz

More VRAM (32GB vs 8GB)

Larger VRAM bandwidth (512.0GB/s vs 384.0GB/s)

1280 additional rendering cores

AMD Radeon R9 390 's Advantages

Lower TDP (275W vs 400W)

Score

Benchmark

FP32 (float)

Radeon Pro W6800X Duo +195%

15.11 TFLOPS

Radeon R9 390

5.12 TFLOPS

Radeon Pro W6800X Duo

VS

Radeon R9 390

Graphics Card

Aug 2021

Release Date

Jun 2015

Radeon Pro Mac

Generation

Pirate Islands

Desktop

Type

Desktop

Apple MPX

Bus Interface

PCIe 3.0 x16

Clock Speeds

1800 MHz

Base Clock

-

1967 MHz

Boost Clock

-

2000 MHz

Memory Clock

1500 MHz

Memory

32GB

Memory Size

8GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

512bit

512.0GB/s

Bandwidth

384.0GB/s

Render Config

60

Compute Units

40

-

3840

Shading Units

2560

240

TMUs

160

96

ROPs

64

-

60

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

1024 KB

128 MB

L3 Cache

-

Theoretical Performance

188.8 GPixel/s

Pixel Rate

64.00 GPixel/s

472.1 GTexel/s

Texture Rate

160.0 GTexel/s

30.21 TFLOPS

FP16 (half)

-

15.11 TFLOPS

FP32 (float)

5.120 TFLOPS

944.2 GFLOPS

FP64 (double)

640.0 GFLOPS

Board Design

400W

TDP

275W

800 W

Suggested PSU

600 W

1x HDMI 2.1 4x Thunderbolt

Outputs

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Navi 21

GPU Name

Grenada

Navi 21 Pro-XLA

GPU Variant

Grenada PRO (215-0880030)

RDNA 2.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

26.8 billion

Transistors

6.2 billion

520 mm²

Die Size

438 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.0

1.3

Vulkan

1.2

-

6.7

Shader Model

6.3

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