AMD K8L Agena & Kuma Details

Core Enchancements:

128 Bit floating point:
Applies only to Agena & Kuma

New SSE4A instructions:
Advanced Bit manipulation
MWAIT & MONITOR instructions
Misaligned SSE Mode
Additional Features:
Power management state invariant time stamp counter (TSC)
increased number of TLB Page entries
1GB large paging support
Physical address space increased to 48 bits

IMC Enhancements

DDR2 Dimms in products variations:
Socket AM2+: Dual Channel unbuffered 1066 support
Socket 1207+ Dual Channel unbuffered 1066 support
Memory Controller enhancements
Write Burst & DRAM prefetching performance improovements
DRAM writes can be buffered in the memory controller before being opportunistically bursted into DRAM controler to improve DRAM interface efficiency
Read prefetcher detects stride paterns and issues prefetch requests based on confidence level
Channel Interleaving
Roadmap:

Agena FX:

Q3 2007:
2.7-2.9GHz
2MB L2 total L2 cache for the CPU (quad core so 512KB each core)
2MB shared L3
Socket 1207+
4000MHz hypertransport Bus
TDP not determined yet
65nm SOI

Agena:

Q3 2007:
2.4-2.6GHz
2MB L2 total L2 cache for the CPU (quad core so 512KB each core)
2MB shared L3
Socket AM2+
4000MHz hypertransport Bus
TDP 125W
65nm SOI

Kuma:

Q3 2007:
2.0-2.9GHz
1MB L2 total L2 cache for the CPU (dual core so 512KB each core)
2MB shared L3
Socket AM2+
4000MHz hypertransport Bus
TDP 89w - 65w
65nm SOI

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