AMD Radeon HD 6390 vs AMD Radeon RX 550

VS

AMD Radeon HD 6390

AMD Radeon RX 550

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6390 and 2GB VRAM Radeon RX 550 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 50W)

AMD Radeon RX 550 's Advantages

Released 5 years and 9 months late

Boost Clock1183MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (112.0GB/s vs 16.00GB/s)

192 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6390

0.352 TFLOPS

Radeon RX 550 +244%

1.211 TFLOPS

Radeon HD 6390

VS

Radeon RX 550

Graphics Card

Jul 2011

Release Date

Apr 2017

Northern Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1100 MHz

-

Boost Clock

1183 MHz

500 MHz

Memory Clock

1750 MHz

Memory

1024MB

Memory Size

2GB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

128bit

16.00GB/s

Bandwidth

112.0GB/s

Render Config

4

Compute Units

8

-

320

Shading Units

512

16

TMUs

32

8

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

18.93 GPixel/s

8.800 GTexel/s

Texture Rate

37.86 GTexel/s

-

FP16 (half)

1211 GFLOPS

352.0 GFLOPS

FP32 (float)

1211 GFLOPS

-

FP64 (double)

75.71 GFLOPS

Board Design

39W

TDP

50W

200 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

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

None

Power Connectors

None

Graphics Processor

Redwood

GPU Name

Lexa

Redwood LE

GPU Variant

Lexa PRO (215-0904018)

TeraScale 2

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

0.627 billion

Transistors

2.2 billion

104 mm²

Die Size

103 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.2

-

5.0

Shader Model

6.4

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