Yonah (microprocessor)

Yonah
Core Duo U2500 in BGA packaging
General information
Launched2006
Discontinued2008
Marketed byIntel
Designed byIntel
Common manufacturer
  • Intel
CPUID code06Ex
Product code
  • 80538 (single-core)
  • 80539 (dual-core)
Performance
Max. CPU clock rate1.06 GHz to 2.33 GHz
FSB speeds533 MT/s to 667 MT/s
Cache
L1 cache32 KB instruction, 32 KB data per core
L2 cache2 MB, shared
Architecture and classification
ApplicationMobile
Technology node65 nm
MicroarchitectureP6
Instruction setx86-16, IA-32
Extensions
Physical specifications
Cores
  • 1–2
Packages
  • FC-BGA 479
Socket
Products, models, variants
Brand names
  • Mobile Celeron 4xx
  • Mobile Pentium Dual-Core T2xxx
  • Core Duo T2xxx
  • Core Duo L2xxx
  • Core Duo U2xxx
  • Core Solo T1xxx
  • Core Solo U1xxx
  • Mobile Xeon LV/ULV
History
PredecessorDothan
SuccessorMerom
Support status
Unsupported

Yonah is the code name of Intel's first generation 65 nm process CPU cores, based on cores of the earlier Banias (130 nm) / Dothan (90 nm) Pentium M microarchitecture. Yonah CPU cores were used within Intel's Core Solo and Core Duo mobile microprocessor products. SIMD performance on Yonah improved through the addition of SSE3 instructions and improvements to SSE and SSE2 implementations; integer performance decreased slightly due to higher latency cache. Additionally, Yonah included support for the NX bit.