AMD Radeon 550X 640SP: GPU Specs & Benchmarks

The Radeon 550X 640SP is a graphics card by AMD, built on the 14 nm process and based on the Lexa graphics processor (GPU). The video card specifications and performance tests (benchmarks) are listed below.

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Graphics Processor (GPU)

GPU Name

Lexa

Model number

Lexa PRO
(215-0904018)

Architecture

GCN 4.0

Foundry

GlobalFoundries

Process Size

14 nm

Transistors

2,200 million

Die Size

103 mm²

Graphics Card

Release Date

Apr 11th, 2018

Family

Polaris
(RX 500X)

Production

Active

Predecessor

Polaris

Bus Interface

PCIe 3.0 x8

Memory

Memory Size

4 GB

Memory Type

GDDR5

Memory Bus

64 bit

Bandwidth

48.00 GB/s

Performance

Pixel fillrate

17.14 GPixel/s

Texture fillrate

42.84 GTexel/s

FP16 (half) performance

1,371 GFLOPS (1:1)

FP32 (float) performance

1,371 GFLOPS

FP64 (double) performance

85.68 GFLOPS (1:16)

Clock Speeds

Base Clock

1019 MHz

Boost Clock

1071 MHz

Memory Clock

1500 MHz
6 Gbps effective

Render Config

Shading Units

640

TMUs

40

ROPs

16

Compute Units

10

L1 Cache

16 KB (per CU)

L2 Cache

256 KB

Board Design

Slot Width

IGP

Thermal design power (TDP)

50 W

Suggested PSU

250 W

Display Connectors

1x DVI
1x HDMI
1x DisplayPort

Power Connectors

None

API support

DirectX

12 (12_0)

OpenGL

4.6

OpenCL

2.1

Vulkan

1.2

Shader Model

6.4