| Type | Microprocessor |
| Data bus width | 64 bit |
| Package | 447-pin staggered ceramic PGA |
| Speed (MHz) |
- 67 (external)
- 130 (internal)
|
| On-chip peripherals |
- 128-bit secondary cache bus interface
- System control processor
- Memory management unit
|
| Physical memory (GB) | 64 |
| Virtual memory | 2 GB (user mode); 2.5 GB (supervisor mode); 4 GB (kernel mode) |
| Level 1 cache size | 16 KB direct-mapped code cache
16 KB direct-mapped data cache |
| Level 2 cache size | External 128 KB - 4 MB |
| Floating Point Unit | Integrated |
| V core (V) | 3.3 ± 5% |
| Min/Max operating temperature (°C) | 0 - 85 |
| Max power dissipation (W) | 7.92 |
Notes:- Binary compatible with R3000A
- Supports multiprocessor cache coherency protocols
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R4400 family