AMD Radeon RX 460 vs AMD Radeon R9 390 X2

VS

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 460 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 RX 460 's Advantages

Released 11 months late

Boost Clock1200MHz

Lower TDP (75W vs 580W)

AMD Radeon R9 390 X2 's Advantages

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (345.6GB/s vs 112.0GB/s)

1664 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 460

2.15 TFLOPS

Radeon R9 390 X2 +138%

5.12 TFLOPS

Radeon RX 460

VS

Radeon R9 390 X2

Graphics Card

Aug 2016

Release Date

Sep 2015

Arctic Islands

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1090 MHz

Base Clock

-

1200 MHz

Boost Clock

-

1750 MHz

Memory Clock

1350 MHz

Memory

2GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

512bit

112.0GB/s

Bandwidth

345.6GB/s

Render Config

-

SM Count

-

14

Compute Units

40

896

Shading Units

2560

56

TMUs

160

16

ROPs

64

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

1024 KB

Theoretical Performance

19.20 GPixel/s

Pixel Rate

64.00 GPixel/s

67.20 GTexel/s

Texture Rate

160.0 GTexel/s

2.150 TFLOPS

FP16 (half)

-

2.150 TFLOPS

FP32 (float)

5.120 TFLOPS

134.4 GFLOPS

FP64 (double)

640.0 GFLOPS

Graphics Processor

Baffin

GPU Name

Grenada

Baffin PRO

GPU Variant

Grenada PRO (215-0880030)

GCN 4.0

Architecture

GCN 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

3 billion

Transistors

6.2 billion

123 mm²

Die Size

438 mm²

Board Design

75W

TDP

580W

250 W

Suggested PSU

950 W

1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a

Outputs

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

None

Power Connectors

4x 8-pin

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.0

1.2

Vulkan

1.2

-

CUDA

-

6.4

Shader Model

6.3

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