AMD Radeon R9 390 X2 vs AMD Radeon RX 460 1024SP

VS

AMD Radeon R9 390 X2

AMD Radeon RX 460 1024SP

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 X2 and 2GB VRAM Radeon RX 460 1024SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 390 X2 's Advantages

More VRAM (8GB vs 2GB)

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

1536 additional rendering cores

AMD Radeon RX 460 1024SP 's Advantages

Released 1 years and 4 months late

Boost Clock1200MHz

Lower TDP (75W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 390 X2 +108%

5.12 TFLOPS

Radeon RX 460 1024SP

2.458 TFLOPS

Radeon R9 390 X2

VS

Radeon RX 460 1024SP

Graphics Card

Sep 2015

Release Date

Jan 2017

Pirate Islands

Generation

Arctic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1090 MHz

-

Boost Clock

1200 MHz

1350 MHz

Memory Clock

1750 MHz

Memory

8GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

512bit

Memory Bus

128bit

345.6GB/s

Bandwidth

112.0GB/s

Render Config

40

Compute Units

16

-

2560

Shading Units

1024

160

TMUs

64

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

1024 KB

-

Theoretical Performance

64.00 GPixel/s

Pixel Rate

19.20 GPixel/s

160.0 GTexel/s

Texture Rate

76.80 GTexel/s

-

FP16 (half)

2.458 TFLOPS

5.120 TFLOPS

FP32 (float)

2.458 TFLOPS

640.0 GFLOPS

FP64 (double)

153.6 GFLOPS

Board Design

580W

TDP

75W

950 W

Suggested PSU

250 W

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

Outputs

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

4x 8-pin

Power Connectors

None

Graphics Processor

Grenada

GPU Name

Baffin

Grenada PRO (215-0880030)

GPU Variant

Baffin XT

GCN 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

6.2 billion

Transistors

3 billion

438 mm²

Die Size

123 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.0

OpenCL

2.1

1.2

Vulkan

1.2

-

6.3

Shader Model

6.4

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