Agena & Kuma Details

[metro]

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


Source Chilehardware
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[Delph1]

This is really a lot of information one has to take in all at once

So AMD is going to go with 1066MHz memory support even though JEDEC hasn't officially approved this standard yet? Not really risky, but still ...

We need some real hard practical benchmarks showing what these things can do. Hope fully the black market in Taiwan will get some interesting new items soon

//Andreas
_________________
"I'm sort of a postmodern vegetarian, I eat meat ironically"
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Forget everything, knowledge is your enemy, it's only going to make you second-guess yourself."

[metro]