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
Radeon 550X 640SP
AMD Radeon 550X 640SP: GPU Specs & Benchmarks