CPU Information
Hardware fix for the infamous "TLB bug" was implemented in core revision B3 of Phenom and Third-Generation Opteron microprocessors. These CPUs no longer required the temporary fix, and, as a result, had better performance than B2-revision processors. Actual performance gain in newer processor was very dependent on application type. The gain could be unnoticeable in small, CPU-bound applications, or it could be as high as 60% - 70% in memory-intensive applications, such as WinRAR. On average, B3-revision CPUs had 5% - 10% higher performance. To reflect their better performance, AMD added 50 to their model numbers. For instance, this 2.2 GHz Phenom X4 processor with B3 core stepping has model number 9550, while older B2 stepping Phenom X4 CPU with the same internal clock frequency and CPU features has model number 9500.
| General information |
| Type | CPU / Microprocessor |
| Family | AMD Phenom X4 |
| Model number ? | 9550 |
| CPU part number | HD9550WCJ4BGH |
| Box part number | HD9550WCGHBOX |
| Stepping codes | JAAFB AA JAAHB AA |
| Frequency (MHz) ? | 2200 |
| Bus speed (MHz) ? | - 533 MHz Memory controller
- One 1800 MHz 16-bit HyperTransport link
|
| Package | 940-pin organic micro-PGA |
| Sockets | Socket AM2
Socket AM2+ |
| Introduction date | Mar 27, 2008 |
| Price at introduction | $209 |
| |
| Architecture / Microarchitecture |
| Processor core | Agena |
| Core stepping | B3 |
| Manufacturing process | 0.065 micron SOI
450 million transistors |
| Die size | 285 mm2 |
| Data width | 64 bit |
| Number of cores | 4 |
| Floating Point Unit | Integrated |
| Level 1 cache size ? | 4 x 64 KB 2-way associative instruction caches
4 x 64 KB 2-way associative data caches |
| Level 2 cache size ? | 4 x 512 KB 16-way set associative caches |
| Level 3 cache size | 2 MB 32-way set associative shared cache |
| Features | - MMX
- 3DNow!
- SSE
- SSE2
- SSE3
- SSE4a ?
- Advanced Bit Manipulation ?
- AMD64 technology ?
- AMD-V (virtualization) technology
- Enhanced Virus Protection ?
|
| Low power features | - Cool'n'Quiet 2.0
- CoolCore technology ?
- Independent Dynamic Core Technology ?
- Dual Dynamic Power Management ?
- Core C1 and C1E states
- Package S1, S3, S4 and S5 states
|
| On-chip peripherals | - Integrated dual-channel 144-bit DDR2 SDRAM Memory controller
- HyperTransport 3 technology
|
| |
| Electrical/Thermal parameters |
| V core (V) ? | 1.15 - 1.25 |
| V NorthBridge (V) | 1.25 |
| Maximum operating temperature (°C) ? | 55 - 70 |
| Thermal Design Power (W) ? | 95 |
| |
| Notes on AMD HD9550WCJ4BGH |
- On socket AM2+ platforms in the minimum performance state the processor runs at 1100 MHz / 1.05 Volt core voltage, and has TDP 58.3 Watt
- On socket AM2 platforms in the minimum performance state the processor runs at 1100 MHz / 1.15 - 1.25 Volt core voltage, and has TDP 67 Watt
|
