Loki

Loki

Part Number	X812480
Introduced	Late 2007
Designed By	IBM Microsoft
Type	XCPU
Used In	Falcon Jasper Tonasket
Clock Speed	3.2GHz
Cache	L1: 32KB/32KB L2: 1MB
Instruction Set	PowerPC RISC
Cores	3
Threads	6
Process	65nm
TDP	41W
Package	Flip-chip BGA783
Predecessor	Waternoose
Successor	Vejle

Loki is the 65nm version of the XCPU and is used on Falcon, Jasper, and Tonasket motherboards. It is the successor to Waternoose and has a drastically reduced 41W TDP. As such, the power regulation and thermal solution requirements are significantly reduced.

Specifications

• 3 two-way SMD-capable RISC cores clocked at 3.2GHz
• SIMD: Two VMX128 units
• 32KB L1 data cache
• 32KB L1 instruction cache
• 1MB L2 cache at 1.6 GHz with a 256-bit bus
• 21.6GB/s FSB
• 768 bits of IBM eFUSE One-Time-Program memory for fusesets
• One-Time-Programmable ROM and 64KB SRAM for the 1BL and Config Ring
• Big-endian architecture
• A01 stepping
• 65nm process
• 41W TDP

Details

• Part Number: X812480

Prototypes

Engineering Samples by stepping.

A00

First version.

• Part Number: Unknown

A01

Minor update. Engineering sample for the final production chip.

• Part Numbers:
  • X809682-006
  • X890682-006