AMD Radeon Pro W6900X vs AMD Radeon R9 390

VS

We compared two Desktop platform GPUs: 32GB VRAM Radeon Pro W6900X 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 W6900X 's Advantages

Released 6 years and 2 months late

Boost Clock2150MHz

More VRAM (32GB vs 8GB)

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

2560 additional rendering cores

AMD Radeon R9 390 's Advantages

Lower TDP (275W vs 300W)

Score

Benchmark

FP32 (float)

Radeon Pro W6900X +330%

22.02 TFLOPS

Radeon R9 390

5.12 TFLOPS

Radeon Pro W6900X

VS

Radeon R9 390

Graphics Card

Aug 2021

Release Date

Jun 2015

Radeon Pro Mac

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1825 MHz

Base Clock

-

2150 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

-

SM Count

-

80

Compute Units

40

5120

Shading Units

2560

320

TMUs

160

128

ROPs

64

-

Tensor Cores

-

80

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

1024 KB

Theoretical Performance

275.2 GPixel/s

Pixel Rate

64.00 GPixel/s

688.0 GTexel/s

Texture Rate

160.0 GTexel/s

44.03 TFLOPS

FP16 (half)

-

22.02 TFLOPS

FP32 (float)

5.120 TFLOPS

1376 GFLOPS

FP64 (double)

640.0 GFLOPS

Graphics Processor

Navi 21

GPU Name

Grenada

Navi 21 Pro-XTA

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

Board Design

300W

TDP

275W

700 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 Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.0

1.3

Vulkan

1.2

-

CUDA

-

6.5

Shader Model

6.3

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