GPUDesktopReleased Apr 11, 2018

AMD Radeon RX 550X 640SP

4 GB GDDR5 · 128-bit · 640 cores

OEM-only variant of the Radeon RX 550X launched in April 2018, using the Polaris 11 GPU with 640 stream processors instead of the 512 of the Polaris 12 version. It was supplied mainly in prebuilt PCs, with lower clocks and 6 Gbps GDDR5.

General

Manufacturer: AMD
Model: Radeon RX 550X 640SP
Segment: Desktop
GPU chip: Polaris 11 (Baffin)
Architecture: GCN 4 (Polaris)
Release date: Apr 11, 2018
Price: Search on Amazon

Memory

Memory size: 2 – 4 GB
Memory type: GDDR5
Bus width: 128-bit
Bandwidth: 96 GB/s
Memory clock: 1,500 MHz

Clocks & silicon

GPU clock: 1,019 MHz
Boost clock: 1,071 MHz
Shader units: 640 Stream Processors (10 CU)
Tensor / AI cores: —
RT cores: —
Transistors: 3 billion
Technology (nm): 14 nm
GF 14LPP
TDP / TBP: 60 W

Interface & APIs

Bus interface: PCIe 3.0 x8
SLI / multi-GPU: —
DirectX: 12 (12_0)
OpenGL: 4.6
Vulkan: 1.3
Other APIs: OpenCL 2.0

AI support

Precisions: FP8FP16BF16INT8INT4TF32FP64
AI accelerator: —
Peak AI TOPS: —
Notes: No dedicated matrix or AI accelerator; Polaris-generation GCN runs FP16 at the FP32 rate.

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