AMD Radeon HD 6390 vs AMD Radeon R9 380X

VS

AMD Radeon HD 6390

AMD Radeon R9 380X

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6390 and 4GB VRAM Radeon R9 380X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6390 's Advantages

Lower TDP (39W vs 190W)

AMD Radeon R9 380X 's Advantages

Released 4 years and 4 months late

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (182.4GB/s vs 16.00GB/s)

1728 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6390

0.352 TFLOPS

Radeon R9 380X +1028%

3.973 TFLOPS

Radeon HD 6390

VS

Radeon R9 380X

Graphics Card

Jul 2011

Release Date

Nov 2015

Northern Islands

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

500 MHz

Memory Clock

1425 MHz

Memory

1024MB

Memory Size

4GB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

256bit

16.00GB/s

Bandwidth

182.4GB/s

Render Config

4

Compute Units

32

-

320

Shading Units

2048

16

TMUs

128

8

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

31.04 GPixel/s

8.800 GTexel/s

Texture Rate

124.2 GTexel/s

-

FP16 (half)

3.973 TFLOPS

352.0 GFLOPS

FP32 (float)

3.973 TFLOPS

-

FP64 (double)

248.3 GFLOPS

Board Design

39W

TDP

190W

200 W

Suggested PSU

450 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

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

None

Power Connectors

2x 6-pin

Graphics Processor

Redwood

GPU Name

Antigua

Redwood LE

GPU Variant

Antigua XT (215-0877016)

TeraScale 2

Architecture

GCN 3.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.627 billion

Transistors

5 billion

104 mm²

Die Size

366 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.0

N/A

Vulkan

1.2

-

5.0

Shader Model

6.3

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