Broadwell is Intel's microarchitecture based on the 14 nm process for mobile, desktops, and servers. Introduced in early 2015, Broadwell is a process shrink of Haswell which introduced several enhancements.

Codenames

Core	Target
Broadwell Y	Core M family, SoC for Smartphones, 2-in-1s Tablets, and notebooks
Broadwell U	Core ultrabooks
Broadwell H	IoT (QM87, HM86/HM87 Chipsets), All-in-ones
Broadwell DT	Unlocked desktop MPUs
Broadwell EP	Xeon E5, Dual-Processor platform
Broadwell EX	Xeon E5, Multi-Processor platform, QPI
Broadwell E	High-End Desktops (HEDT)

Architecture

Broadwell is for the most part identical to Haswell with server enhancements.

Key changes from Haswell

• FP multiplication instructions has reduced latency (3 cycles, down from 5)
  • Affects AVX, SSE, and FP instructions
• CLMUL instructions are now a single μop, improving latency and throughput
• The second-level TLB (STLB)
  • Table was enlarged (1,536 entries, up from 1024)
  • 1GB page mode (16 entries, 4-ways set associative)
• Larger out-of-order scheduler
• Faster store-to-load forwarding
• Address prediction for branches and returns was improved
• Improved cryptography acceleration instructions