MSI Radeon 550 LP OC

Radeon 550 2GT LP OC

Graphics Processor

Lexa

Cores

512

TMUs

ROPs

Memory Size

2 GB

Memory Type

GDDR5

Bus Width

64 bit

GPU

I/O

Top

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~~
1203 MHz (+2%)

Memory Clock: 1750 MHz
7 Gbps effective

Memory

Memory Size: 2 GB

Memory Type: GDDR5

Memory Bus: 64 bit

Bandwidth: 56.00 GB/s

Render Config

Shading Units: 512

TMUs: 32

ROPs: 16

Compute Units: 8

L1 Cache: 16 KB (per CU)

L2 Cache: 256 KB

Theoretical Performance

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

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

FP16 (half): ~~1,211 GFLOPS~~
1,232 GFLOPS (1:1)

FP32 (float): ~~1,211 GFLOPS~~
1,232 GFLOPS

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

Board Design

Slot Width: Dual-slot

Length: ~~145 mm~~
170 mm
~~5.7 inches~~
6.7 inches

Width: 69 mm
2.7 inches

Height: 36 mm
1.4 inches

TDP: 50 W

Suggested PSU: 250 W

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

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

Other retail boards based on this design (4)

Name	GPU Clock	Boost Clock	Memory Clock	Other Changes
ASRock Phantom Gaming 550	1100 MHz	1183 MHz	1750 MHz	170 mm/6.7 inches
ASUS PHOENIX 550	1100 MHz	1183 MHz	1500 MHz	192 mm/7.6 inches
MSI Radeon 550 AERO ITX OC	1100 MHz	1203 MHz	1750 MHz	157 mm/6.2 inches, 1x DVI 1x HDMI
MSI Radeon 550 LP OC	1100 MHz	1203 MHz	1750 MHz	170 mm/6.7 inches, 1x DVI 1x HDMI