GPUMobileReleased Aug 13, 2019

AMD Radeon RX 640 Mobile

4 GB GDDR5 · 64-bit · 640 cores

The fastest model in AMD's OEM-only Radeon 600 series for notebooks, built on the same Polaris 23 die as the Radeon 630 but with more texture and render units. It shipped in either a ten compute unit or a cut-down eight compute unit configuration, so laptops carrying the RX 640 name are not all equivalent.

General

Manufacturer: AMD
Model: Radeon RX 640 Mobile
Segment: Mobile
GPU chip: Polaris 23 (Lexa)
Architecture: GCN 4 (Polaris)
Release date: Aug 13, 2019
Price: Search on Amazon

Memory

Memory size: 2 – 4 GB
Memory type: GDDR5
Bus width: 64-bit
Bandwidth: 56 GB/s
Memory clock: 1,750 MHz

Clocks & silicon

GPU clock: 1,082 MHz
Boost clock: 1,287 MHz
Shader units: 640 Stream Processors (10 CU)
Tensor / AI cores: —
RT cores: —
Transistors: 2.2 billion
Technology (nm): 14 nm
GF 14LPP
TDP / TBP: 50 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 2.1

AI support

Precisions: FP8FP16BF16INT8INT4TF32FP64
AI accelerator: —
Peak AI TOPS: —
Notes: —

All AMD GPUs →

Mobile gpus from AMD announced around the same time as the AMD Radeon RX 640 Mobile. Add any of them to your compare list to see the specs side by side.

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