Sapphire PULSE RX 550 640SP 4 GB

11268-15

Graphics Processor

Baffin

Cores

640

TMUs

ROPs

Memory Size

4 GB

Memory Type

GDDR5

Bus Width

128 bit

GPU

Graphics Processor

GPU Name: Baffin

GPU Variant: Baffin LE

Architecture: GCN 4.0

Foundry: GlobalFoundries

Process Size: 14 nm

Transistors: 3,000 million

Density: 24.4M / mm²

Die Size: 123 mm²

Chip Package: BGA-769

Graphics Card

Release Date: Oct 13th, 2017

Generation: Polaris
(RX 500)

Predecessor: Arctic Islands

Successor: Vega

Production: Active

Bus Interface: PCIe 3.0 x8

Clock Speeds

Base Clock: 1019 MHz

Boost Clock: 1071 MHz

Memory Clock: 1500 MHz
6 Gbps effective

Memory

Memory Size: ~~2 GB~~
4 GB

Memory Type: GDDR5

Memory Bus: 128 bit

Bandwidth: 96.00 GB/s

Render Config

Shading Units: 640

TMUs: 40

ROPs: 16

Compute Units: 10

L1 Cache: 16 KB (per CU)

L2 Cache: 1024 KB

Theoretical Performance

Pixel Rate: 17.14 GPixel/s

Texture Rate: 42.84 GTexel/s

FP16 (half): 1,371 GFLOPS (1:1)

FP32 (float): 1,371 GFLOPS

FP64 (double): 85.68 GFLOPS (1:16)

Board Design

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

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

TDP: 60 W

Suggested PSU: 250 W

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

Power Connectors: None

Board Number: D090

Graphics Features

DirectX: 12 (12_0)

OpenGL: 4.6

OpenCL: 2.1

Vulkan: 1.3

Shader Model: 6.7

Baffin GPU Notes

Generation: Arctic Islands
Codename: Polaris 11/21/31
Old Codename: Kauai/Maui / RacerX
Graphics/Compute: GFX8 (gfx803)
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 (9)

Name	GPU Clock	Boost Clock	Memory Clock	Other Changes
AREZ PHOENIX RX 550 640SP	1019 MHz	1071 MHz	1500 MHz	193 mm/7.6 inches
AREZ PHOENIX RX 550 M7 640SP 4 GB	1019 MHz	1071 MHz	1750 MHz	4 GB, 193 mm/7.6 inches
ASRock Phantom Gaming RX 550 640SP	1019 MHz	1183 MHz	1500 MHz	170 mm/6.7 inches
ASUS PHOENIX RX 550 640SP 4 GB	1019 MHz	1071 MHz	1500 MHz	4 GB, 193 mm/7.6 inches
ASUS PHOENIX RX 550 M7 640SP 4 GB	1019 MHz	1071 MHz	1750 MHz	4 GB, 193 mm/7.6 inches
BIOSTAR RX 550 640SP 4 GB	1019 MHz	1071 MHz	1500 MHz	4 GB
Sapphire PULSE RX 550 640SP	1019 MHz	1071 MHz	1500 MHz	158 mm/6.2 inches, Single-slot
Sapphire PULSE RX 550 640SP 4 GB	1019 MHz	1071 MHz	1500 MHz	4 GB, 158 mm/6.2 inches, Single-slot
Yeston RX 550 640SP Low Profile	1019 MHz	1071 MHz	1500 MHz	170 mm/6.7 inches