AMD Radeon R9 390X vs AMD Radeon R9 390

VS

AMD Radeon R9 390X

AMD Radeon R9 390

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390X 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 R9 390X 's Advantages

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 390X +15%

5.914 TFLOPS

Radeon R9 390

5.12 TFLOPS

3DMark Time Spy

Radeon R9 390X +7%

4245

Radeon R9 390

3950

Radeon R9 390X

VS

Radeon R9 390

Graphics Card

Jun 2015

Release Date

Jun 2015

Pirate Islands

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1500 MHz

Memory Clock

1500 MHz

Memory

8GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

512bit

Memory Bus

512bit

384.0GB/s

Bandwidth

384.0GB/s

Render Config

44

Compute Units

40

-

2816

Shading Units

2560

176

TMUs

160

64

ROPs

64

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

1024 KB

-

Theoretical Performance

67.20 GPixel/s

Pixel Rate

64.00 GPixel/s

184.8 GTexel/s

Texture Rate

160.0 GTexel/s

-

5.914 TFLOPS

FP32 (float)

5.120 TFLOPS

739.2 GFLOPS

FP64 (double)

640.0 GFLOPS

Board Design

275W

TDP

275W

600 W

Suggested PSU

600 W

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

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Grenada

GPU Name

Grenada

Grenada XT (215-0880004)

GPU Variant

Grenada PRO (215-0880030)

GCN 2.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

6.2 billion

Transistors

6.2 billion

438 mm²

Die Size

438 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

6.3

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