Sapphire PULSE RX 550 4 GB

11268-01-20G

Graphics Processor

Lexa

Cores

512

TMUs

ROPs

Memory Size

4 GB

Memory Type

GDDR5

Bus Width

128 bit

GPU

Graphics Processor

GPU Name: Lexa

GPU Variant: Lexa PRO
(215-0904018)

Architecture: GCN 4.0

Foundry: GlobalFoundries

Process Size: 14 nm

Transistors: 2,200 million

Density: 21.4M / mm²

Die Size: 103 mm²

Chip Package: FCBGA-769

Graphics Card

Release Date: Apr 20th, 2017

Generation: Polaris
(RX 500)

Predecessor: Arctic Islands

Successor: Vega

Production: End-of-life

Bus Interface: PCIe 3.0 x8

Clock Speeds

Base Clock: 1100 MHz

Boost Clock: ~~1183 MHz~~
1206 MHz (+2%)

Memory Clock: 1750 MHz
7 Gbps effective

Memory

Memory Size: ~~2 GB~~
4 GB

Memory Type: GDDR5

Memory Bus: 128 bit

Bandwidth: 112.0 GB/s

Render Config

Shading Units: 512

TMUs: 32

ROPs: 16

Compute Units: 8

L1 Cache: 16 KB (per CU)

L2 Cache: 512 KB

Theoretical Performance

Pixel Rate: ~~18.93 GPixel/s~~
19.30 GPixel/s

Texture Rate: ~~37.86 GTexel/s~~
38.59 GTexel/s

FP16 (half): ~~1,211 GFLOPS~~
1,235 GFLOPS (1:1)

FP32 (float): ~~1,211 GFLOPS~~
1,235 GFLOPS

FP64 (double): ~~75.71 GFLOPS~~
77.18 GFLOPS (1:16)

Board Design

Slot Width: ~~Dual-slot~~
Single-slot

Length: ~~145 mm~~
158 mm
~~5.7 inches~~
6.2 inches

TDP: 50 W

Suggested PSU: 250 W

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

Power Connectors: None

Board Number: D090-01

Graphics Features

DirectX: 12 (12_0)

OpenGL: 4.6

OpenCL: 2.1

Vulkan: 1.3

Shader Model: 6.7

Lexa GPU Notes

Generation: Arctic Islands
Codename: Polaris 12
Old Codename: Treasure
Graphics/Compute: GFX8 (gfx804)
Display Core Engine: 11.2
Unified Video Decoder: 6.3
Video Compression Engine: 3.4
System DMA: 3.0.0
CLRX: GCN 1.2.0

Latest Drivers:
Windows 7:
64-bit: AMD Software: Adrenalin Edition 22.6.1
64-bit: Radeon™ Pro Software for Enterprise 21.Q1.1

Windows 8.1:
64-bit: Radeon Software: Crimson ReLive Edition 17.4.4 / 17.7.1

Windows 10 / 11:
64-bit: AMD Software: Adrenalin Edition 24.3.1 (23.19.12)
64-bit: AMD Software: PRO Edition 22.Q4

Other retail boards based on this design (40)

Name	GPU Clock	Boost Clock	Memory Clock	Other Changes
ASRock Phantom Gaming RX 550	1100 MHz	1183 MHz	1500 MHz	170 mm/6.7 inches
ASRock Phantom Gaming RX 550 4 GB	1100 MHz	1183 MHz	1500 MHz	4 GB, 170 mm/6.7 inches
ASUS RX 550 Single Fan	1100 MHz	1183 MHz	1750 MHz
ASUS RX 550 Single Fan 4 GB	1100 MHz	1183 MHz	1750 MHz	4 GB
BIOSTAR RX 550	1100 MHz	1183 MHz	1750 MHz
ColorFire RX 550 Armor	1100 MHz	1183 MHz	1750 MHz
ColorFire RX 550 Armor 4 GB	1100 MHz	1183 MHz	1750 MHz	4 GB
ColorFire RX 550 Defender	1100 MHz	1183 MHz	1750 MHz	4 GB
Dataland RX 550 Dual Cool	1100 MHz	1190 MHz	1750 MHz	211 mm/8.3 inches
Dataland RX 550 Dual Cool 4 GB	1100 MHz	1183 MHz	1500 MHz	4 GB, 211 mm/8.3 inches
Dataland RX 550 Super	1100 MHz	1190 MHz	1750 MHz	150 mm/5.9 inches
Dell RX 550 OEM 4 GB	1100 MHz	1219 MHz	1500 MHz	4 GB, Single-slot, 1x DisplayPort 2x mini-DisplayPort
GIGABYTE RX 550	1100 MHz	1183 MHz	1750 MHz	170 mm/6.7 inches
GIGABYTE RX 550 GAMING OC	1100 MHz	1206 MHz	1750 MHz	191 mm/7.5 inches
HIS RX 550 GREEN iCooler OC	1100 MHz	1203 MHz	1750 MHz
HIS RX 550 GREEN iCooler OC 4 GB	1100 MHz	1203 MHz	1750 MHz	4 GB
HIS RX 550 GREEN Slim-iCooler OC	1100 MHz	1203 MHz	1750 MHz	Single-slot
HIS RX 550 GREEN Slim-iCooler OC 4 GB	1100 MHz	1203 MHz	1750 MHz	4 GB, Single-slot
KUROUTOSHIKOU RX 550	1100 MHz	1183 MHz	1750 MHz	225 mm/8.9 inches
KUROUTOSHIKOU RX 550 Short	1100 MHz	1190 MHz	1750 MHz
MAXSUN RX 550 Transformer	1100 MHz	1183 MHz	1750 MHz	182 mm/7.2 inches
MAXSUN RX 550 Transformer M.2	1100 MHz	1183 MHz	1750 MHz
MAXSUN RX 550 Transformer M.3	1100 MHz	1183 MHz	1750 MHz
MSI RX 550 AERO ITX	1100 MHz	1183 MHz	1750 MHz	155 mm/6.1 inches
MSI RX 550 AERO ITX 4 GB	1100 MHz	1183 MHz	1750 MHz	4 GB
MSI RX 550 AERO ITX OC	1100 MHz	1183 MHz	1750 MHz
MSI RX 550 AERO ITX OC 4 GB	1100 MHz	1203 MHz	1750 MHz	4 GB
MSI RX 550 Low Profile OC	1100 MHz	1203 MHz	1750 MHz	170 mm/6.7 inches
PowerColor Red Dragon RX 550	1100 MHz	1190 MHz	1750 MHz	225 mm/8.9 inches
PowerColor Red Dragon RX 550 4 GB	1100 MHz	1190 MHz	1750 MHz
PowerColor Red Dragon RX 550 V2	1100 MHz	1190 MHz	1750 MHz
Sapphire PULSE RX 550	1100 MHz	1206 MHz	1750 MHz	158 mm/6.2 inches, Single-slot
Sapphire PULSE RX 550 4 GB	1100 MHz	1206 MHz	1750 MHz	4 GB, 158 mm/6.2 inches, Single-slot
Sapphire RX 550 Low Profile 4 GB	1100 MHz	1206 MHz	1750 MHz	4 GB, 180 mm/7.1 inches
XFX RX 550 Core Edition	1100 MHz	1203 MHz	1750 MHz	170 mm/6.7 inches
XFX RX 550 Low Profile OC	1100 MHz	1203 MHz	1750 MHz	178 mm/7 inches
XFX RX 550 Low Profile OC 4 GB	1100 MHz	1203 MHz	1750 MHz	4 GB, 178 mm/7 inches
XFX RX 550 OC 4 GB	1100 MHz	1203 MHz	1750 MHz	4 GB, 170 mm/6.7 inches
XFX RX 550 Single Slot OC	1100 MHz	1203 MHz	1750 MHz	170 mm/6.7 inches, Single-slot
XFX RX 550 Single Slot OC 4 GB	1100 MHz	1203 MHz	1750 MHz	4 GB, 170 mm/6.7 inches, Single-slot