AMD Radeon R9 390 vs AMD Radeon Pro W6800X

VS

AMD Radeon R9 390

AMD Radeon Pro W6800X

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 and 32GB VRAM Radeon Pro W6800X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro W6800X 's Advantages

Released 6 years and 2 months late

Boost Clock2087MHz

More VRAM (32GB vs 8GB)

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

1280 additional rendering cores

Lower TDP (200W vs 275W)

Score

Benchmark

FP32 (float)

Radeon R9 390

5.12 TFLOPS

Radeon Pro W6800X +213%

16.03 TFLOPS

Radeon R9 390

VS

Radeon Pro W6800X

Graphics Card

Jun 2015

Release Date

Aug 2021

Pirate Islands

Generation

Radeon Pro Mac

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

Apple MPX

Clock Speeds

-

Base Clock

1800 MHz

-

Boost Clock

2087 MHz

1500 MHz

Memory Clock

2000 MHz

Memory

8GB

Memory Size

32GB

GDDR5

Memory Type

GDDR6

512bit

Memory Bus

256bit

384.0GB/s

Bandwidth

512.0GB/s

Render Config

40

Compute Units

60

-

2560

Shading Units

3840

160

TMUs

240

64

ROPs

96

-

RT Cores

60

16 KB (per CU)

L1 Cache

128 KB per Array

1024 KB

L2 Cache

4 MB

-

L3 Cache

128 MB

Theoretical Performance

64.00 GPixel/s

Pixel Rate

200.4 GPixel/s

160.0 GTexel/s

Texture Rate

500.9 GTexel/s

-

FP16 (half)

32.06 TFLOPS

5.120 TFLOPS

FP32 (float)

16.03 TFLOPS

640.0 GFLOPS

FP64 (double)

1002 GFLOPS

Board Design

275W

TDP

200W

600 W

Suggested PSU

550 W

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

Outputs

1x HDMI 2.1 4x Thunderbolt

1x 6-pin + 1x 8-pin

Power Connectors

Apple MPX

Graphics Processor

Grenada

GPU Name

Navi 21

Grenada PRO (215-0880030)

GPU Variant

Navi 21 Pro-XLA

GCN 2.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

6.2 billion

Transistors

26.8 billion

438 mm²

Die Size

520 mm²

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.0

OpenCL

2.1

1.2

Vulkan

1.3

-

6.3

Shader Model

6.7

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