AMD Radeon R9 390X vs AMD Radeon Pro Duo

VS

AMD Radeon R9 390X

AMD Radeon Pro Duo

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390X and 4GB VRAM Radeon Pro Duo to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 390X 's Advantages

More VRAM (8GB vs 4GB)

Lower TDP (275W vs 350W)

AMD Radeon Pro Duo 's Advantages

Released 10 months late

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

1280 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 390X

5.914 TFLOPS

Radeon Pro Duo +38%

8.192 TFLOPS

Radeon R9 390X

VS

Radeon Pro Duo

Graphics Card

Jun 2015

Release Date

Apr 2016

Pirate Islands

Generation

Radeon Pro

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1500 MHz

Memory Clock

500 MHz

Memory

8GB

Memory Size

4GB

GDDR5

Memory Type

HBM

512bit

Memory Bus

4096bit

384.0GB/s

Bandwidth

512.0GB/s

Render Config

44

Compute Units

64

-

2816

Shading Units

4096

176

TMUs

256

64

ROPs

64

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

2 MB

-

Theoretical Performance

67.20 GPixel/s

Pixel Rate

64.00 GPixel/s

184.8 GTexel/s

Texture Rate

256.0 GTexel/s

-

FP16 (half)

8.192 TFLOPS

5.914 TFLOPS

FP32 (float)

8.192 TFLOPS

739.2 GFLOPS

FP64 (double)

512.0 GFLOPS

Board Design

275W

TDP

350W

600 W

Suggested PSU

750 W

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

Outputs

1x HDMI 1.4a 3x DisplayPort 1.2

1x 6-pin + 1x 8-pin

Power Connectors

3x 8-pin

Graphics Processor

Grenada

GPU Name

Capsaicin

Grenada XT (215-0880004)

GPU Variant

Capsaicin XT

GCN 2.0

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

6.2 billion

Transistors

8.9 billion

438 mm²

Die Size

596 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.0

OpenCL

2.0

1.2

Vulkan

1.2

-

6.3

Shader Model

6.0

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