CPU Information
ADAAA2800ACN5 is a pre-release version of Athlon 64. This specific processor was manufactured in December 2002, that is 10 month before introduction of the Athlon 64 family. It's not clear whether this processor has 2800+ model number or not. The part number implies that it does. The CPU has 1.6 GHz internal frequency, which is 200 MHz lower than on production 2800+ processors, but ADAAA2800ACN5's large 1 MB level 2 cache should mostly compensate for the difference in internal frequency. At the same time the CPU has "AMD Athlon(tm) 64 Processor 2600+" name string, and the processor's performance is about 5% - 12% lower than the performance of production Athlon 64 2800+ processors. It's possible that lower performance of this CPU can be attributed to very early core revision - SH-B0. The first production Athlon 64 CPUs had SH-C0 core, and it seems that there were many errata fixes between B0 and C0 cores.
| General information |
| Type | CPU / Microprocessor |
| Family | AMD Athlon 64 |
| Model number ? | 2800+ |
| CPU part number | ADAAA2800ACN5 |
| Stepping codes | AAABB AAACB |
| Frequency (MHz) ? | 1600 |
| Package | 754-pin lidded microPGA
1.57" x 1.57" (4 cm x 4 cm) |
| Socket | Socket 754 |
| |
| Architecture / Microarchitecture |
| Processor core | ClawHammer |
| Core stepping | B0 |
| Manufacturing process | 0.13 micron SOI |
| Data width | 64 bit |
| Number of cores | 1 |
| Floating Point Unit | Integrated |
| Level 1 cache size ? | 64 KB 2-way associative instruction cache
64 KB 2-way associative data cache |
| Level 2 cache size ? | 1 MB exclusive cache |
| Physical memory | 1 TB |
| Virtual memory (TB) | 256 |
| Features | - MMX technology
- 3DNow!
- SSE
- SSE2
- AMD64 technology ?
- Enhanced Virus Protection ?
|
| Low power features | - System management mode
- Halt state
- Stop Grant state ?
|
| On-chip peripherals | - Single-channel DDR SDRAM memory controller
- One 16-bit HyperTransport link with speeds up to 800 MHz
|
| |
| Electrical/Thermal parameters |
| |
| Notes on AMD ADAAA2800ACN5 |
|
CPU ID
NOTE: CPU ID information below was taken from one CPU and
may include features that are not present in all different steppings of the
AMD Athlon 64 2800+ CPU.
| Manufacturer: | AMD |
| Family: | Athlon 64 |
| Model / Processor Number: | 2800+ |
|
| Part number: | ADAAA2800ACN5 |
| S-Spec / Comment: | AAACB 0301WPBW 27645 Clawhammer F40 SH-B0 |
| Submitted by: | |
|
| General information |
|---|
| Vendor: | AuthenticAMD |
| Processor name (BIOS): | AMD Athlon(tm) 64 Processor 2600+ |
| Processor type: | Original OEM Processor |
| Core stepping: | SH-B0 |
| CPUID signature: | F40 |
| Family: | 15 (0Fh) |
| Model: | 4 (04h) |
| Stepping: | 0 (00h) |
| Cache: |
L2 |
|---|
| Size: |
1 MB |
| Associativity: |
16-way set associative |
| Line size: |
64 bytes |
| Lines per tag: |
1 |
| |
| Instruction set extensions | Additonal instructions |
|---|
| MMX |
CLFLUSH |
| AMD extensions to MMX |
CMOV |
| 3DNow! |
CMPXCHG8B |
| Extensions to 3DNow! |
FXSAVE/FXRSTORE |
| SSE |
SYSCALL/SYSRET |
| SSE2 |
SYSENTER/SYSEXIT |
| |
| Major features | Other features |
|---|
| On-chip Floating Point Unit |
36-bit page-size extensions |
| 64-bit / Intel 64 |
Advanced programmable interrupt controller |
| NX bit/XD-bit |
Debugging extensions |
| |
Machine check architecture |
| |
Machine check exception |
| |
Memory-type range registers |
| |
Model-specific registers |
| |
Page attribute table |
| |
Page global extension |
| |
Page-size extensions (4MB pages) |
| |
Physical address extensions |
| |
THERMTRIP |
| |
Temperature sensor |
| |
Time stamp counter |
| |
Virtual 8086-mode enhancements |
