AMD Radeon R9 Nano vs AMD Radeon R9 390 X2

VS

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 Nano and 8GB VRAM Radeon R9 390 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 Nano 's Advantages

Larger VRAM bandwidth (512.0GB/s vs 345.6GB/s)

1536 additional rendering cores

Lower TDP (175W vs 580W)

AMD Radeon R9 390 X2 's Advantages

More VRAM (8GB vs 4GB)

Score

Benchmark

FP32 (float)

Radeon R9 Nano +60%

8.192 TFLOPS

Radeon R9 390 X2

5.12 TFLOPS

Radeon R9 Nano

VS

Radeon R9 390 X2

Graphics Card

Aug 2015

Release Date

Sep 2015

Pirate Islands

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

500 MHz

Memory Clock

1350 MHz

Memory

4GB

Memory Size

8GB

HBM

Memory Type

GDDR5

4096bit

Memory Bus

512bit

512.0GB/s

Bandwidth

345.6GB/s

Render Config

-

SM Count

-

64

Compute Units

40

4096

Shading Units

2560

256

TMUs

160

64

ROPs

64

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

1024 KB

Theoretical Performance

64.00 GPixel/s

Pixel Rate

64.00 GPixel/s

256.0 GTexel/s

Texture Rate

160.0 GTexel/s

8.192 TFLOPS

FP16 (half)

-

8.192 TFLOPS

FP32 (float)

5.120 TFLOPS

512.0 GFLOPS

FP64 (double)

640.0 GFLOPS

Graphics Processor

Fiji

GPU Name

Grenada

Fiji XT CA (215-0862120)

GPU Variant

Grenada PRO (215-0880030)

GCN 3.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

8.9 billion

Transistors

6.2 billion

596 mm²

Die Size

438 mm²

Board Design

175W

TDP

580W

450 W

Suggested PSU

950 W

1x HDMI 1.4a 3x DisplayPort 1.2

Outputs

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

1x 8-pin

Power Connectors

4x 8-pin

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.0

OpenCL

2.0

1.2

Vulkan

1.2

-

CUDA

-

6.3

Shader Model

6.3

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