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AMD Phenom II X2 B55 - HDXB55WFK2DGM

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AMD Phenom II X2 B55 specifications

General information
TypeCPU / Microprocessor
Market segmentDesktop
FamilyAMD Phenom II X2
Model number  ? B55
CPU part numberHDXB55WFK2DGM is an OEM/tray microprocessor
Stepping codesCACAC AC   CACDC AC
Frequency  ? 3000 MHz
Bus speed  ? 533 MHz Memory controller
One 2200 MHz 16-bit HyperTransport link
Clock multiplier  ? 15
Package938-pin organic micro-PGA
SocketsSocket AM2+
Socket AM3
Architecture / Microarchitecture
Processor core  ? Callisto
Core stepping  ? RB-C3
Manufacturing process0.045 micron SOI
Die size258mm2
Data width64 bit
The number of cores2
The number of threads2
Floating Point UnitIntegrated
Level 1 cache size  ? 2 x 64 KB instruction caches
2 x 64 KB data caches
Level 2 cache size  ? 2 x 512 KB caches
Level 3 cache size6 MB shared cache
  • MMX instructions
  • 3DNow! technology
  • SSE / Streaming SIMD Extensions
  • SSE2 / Streaming SIMD Extensions 2
  • SSE3 / Streaming SIMD Extensions 3
  • SSE4a  ? 
  • ABM / Advanced Bit Manipulation  ? 
  • AMD64 / AMD 64-bit technology  ? 
  • AMD-V / AMD Virtualization technology
  • EVP / Enhanced Virus Protection  ? 
Low power features
  • Cool'n'Quiet 3.0
  • CoolCore Technology  ? 
  • Dual Dynamic Power Management  ? 
  • Core C1 and C1E states
  • Package S0, S1, S3, S4 and S5 states
Integrated peripherals / components
Memory controller
  • The number of controllers: 1
    Memory channels: 2
    Channel width (bits): 72
    Supported memory: DDR2-1066, DDR3-1066
    Maximum memory bandwidth (GB/s): 17.1
Other peripheralsHyperTransport 3 technology
Electrical / Thermal parameters
V core  ? 0.775V - 1.425V
Maximum operating temperature  ? 55°C - 70°C
Thermal Design Power  ? 80 Watt
  • Business class processor
  • The fastest supported memory is DDR2-1066

Detailed side-by-side comparison

For detailed comparision of the AMD B55 and any other other chip from our CPU database type in a chip name and/or its partial specs:

You can specify any of the following: manufacturer name, family name, model number, part number, core name, socket name, operating frequency, bus speed, and the last level cache. Here are examples of searches: B55, HDXB55WFK2DGM, AMD Phenom II X2 3GHz, Callisto Socket AM2+, Socket AM3


Q: I have an AMD Phenom II X2 B55 CPU. Can I upgrade it?
A: Probably yes. Processor compatibility is determined by your motherboard. Please check website for CPU support list for your board.

Phenom II X2 B55 Overclocking

Sorry, overclocking information is not available at this time.

CPU ID information for the Phenom II X2 B55

We don't have CPU ID information for the AMD Phenom II X2 B55 CPU in our database. If you have this processor please use our CPUID tool to submit CPUID information. During submission, please specify family name, HDXB55WFK2DGM part number, and, most importantly, make the CPUID record public. To search or browse all public CPUID submissions please visit CPUID database.

CPUs, related to AMD Phenom II X2 B55

Model Cores /
Frequency L2
TDP Features Price  
AMD Phenom II X2 family, Socket AM2+ / Socket AM3
   Phenom II X2 B532 / 22.8 GHz1 MB6 MB80W >
   Phenom II X2 545 (rev. C2)2 / 23 GHz1 MB6 MB94.3W >
   Phenom II X2 545 (rev. C3)2 / 23 GHz1 MB6 MB80W >
   Phenom II X2 B552 / 23 GHz1 MB6 MB80W  
   Phenom II X2 550 (rev. C3)2 / 23.1 GHz1 MB6 MB80W >
   Phenom II X2 550 BE (rev. C2)2 / 23.1 GHz1 MB6 MB94WUnlock >
   Phenom II X2 B572 / 23.2 GHz1 MB6 MB80W >
   Phenom II X2 555 BE (rev. C3)2 / 23.2 GHz1 MB6 MB80WUnlock$84>
   Phenom II X2 5112 / 23.4 GHz2 MB 65W >
   Phenom II X2 560 BE2 / 23.3 GHz1 MB6 MB80WUnlock$89>
   Phenom II X2 5212 / 23.5 GHz2 MB 65W >
   Phenom II X2 B592 / 23.4 GHz1 MB6 MB80W >
   Phenom II X2 565 BE2 / 23.4 GHz1 MB6 MB80WUnlock$101>
   Phenom II X2 B602 / 23.5 GHz1 MB6 MB80W >
   Phenom II X2 570 BE2 / 23.5 GHz1 MB6 MB80WUnlock >
Other families, K10 micro-architecture, Socket AM2+ / Socket AM3
   Athlon II 170u1 / 12 GHz1 MB 20W >
   Sempron 1501 / 12.9 GHz1 MB 45W >
   Athlon X2 5200+ (0.045 micron)2 / 22.3 GHz1 MB 65W >
   Sempron X2 1902 / 22.5 GHz1 MB 45W >
   Athlon II X2 2802 / 23.6 GHz2 MB 65W$49>
   Phenom II X3 B773 / 33.2 GHz1.5 MB6 MB95W >
   Athlon II X3 4603 / 33.4 GHz1.5 MB 95W$69>
   Athlon II X4 6504 / 43.2 GHz2 MB 95W >
   Phenom II X4 9804 / 43.7 GHz2 MB6 MB125WUnlock$163>
 • Highlighted numbers and features indicate whether specific processor performs better or worse than the Phenom II X2 B55
 • Within each category, the CPUs are sorted from slower (at the top) to faster (at the bottom)
 • Click on the >  icon to compare any CPU in the table with the AMD Phenom II X2 B55 (Javascript required).
 • The 'Price' column shows official AMD prices as of Mar 11, 2014. Prices for obsolete and tray-only processors are not provided.
 • List of related CPUs is not complete.
 • Features abbreviations:
Unlock - Unlocked multiplier

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