AMD Radeon RX M640 Full Specs

Summary

640 Shaders 1.29GHz

4GB GDDR556GB/s

Peak·FP32·FP16 1.65 TFLOPS

Form Factor Soldered

TDP 50W

Highlights

Peak OPS

Peak OPS FP32 FP16 FP64 Memory Bandwidth

Radeon RX M6401.65 TFLOPSFP16

x1

Top Score3.35 PFLOPS FP4 Tensor SparseDesktop1xGeForce RTX 5090

x2034.82

Theoretical Performance

Clock Speed1287MHz UC·Base·Boost·OC

Peak OPS 1.65 TFLOPSFP16

FP32 1.65 TFLOPS

FP64 103 GFLOPS

Pixel Rate 20.6 GPixel/s

Texture Rate 51.5 GTexel/s

Core Config

Shaders 640 Shaders

TMUs 40 TMUs

ROPs 16 ROPs

CUs 10 CUs

Clocks

Base Clock 1.1GHz

Boost Clock 1.29GHz

Cache

L1 16KB/CU

L2 Cache 512KB shared

Memory

4GB GDDR5

Memory Bus 64-bit

Memory Speed 7GT/s

Memory Bandwidth 56GB/s

ECC No

Power & Thermals

TDP 50W

Video Output

Max Resolution 5120x2880

Refresh Rate Calculator 5120x2880 Resolution5K Refresh Rate 60Hz

Multi-Monitor 3

Adaptive Sync FreeSync

DSC Not Supported

HDCP HDCP 2.2

API Support

Shader Model 6.7

DirectX DirectX 12 Direct3D 12_0

OpenGL 4.6 OpenCL 2.1 Vulkan 1.3

GFX 8

Encoder

Encoder VCE 3.4

Codec AVC (H.264) HEVC (H.265)

Decoder

Decoder UVD 6.3

Codec MPEG-1 MPEG-2 MPEG-4 JPEG VC-1 AVC (H.264) HEVC (H.265)

Card

Form Factor Soldered

PCIe PCIe 3.0 x8

Chip

Manufacturer AMD

Chip Designer AMD

Architecture GCN 4

Family Radeon RX 600

Branding

Codename Lexa

Chip Variant Polaris 23 XLM

Market Segment Laptop

Release Date Aug 13, 2019

Fabrication

Foundry GlobalFoundries

Fabrication Node 14LPP

Die Size 103mm²

Transistor Count 2.2B

Transistor Density 21.36 MTr/mm²

Images