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Dell PowerEdge M910 Technical Guide 18
6 Processors
6.1 Overview
The Intel Xeon processor 6500 and 7500 series 4S (Expandable Processor) is the microprocessor
designed specifically for servers and workstation applications. The processor features quad-core
processing to maximize performance and performance/watt for data center infrastructures and
highly dense deployments. The Intel Xeon processor 6500 and 7500 series also features Intel
®
Core™
micro-architecture and Intel
®
64 architecture for flexibility in 64-bit and 32-bit applications and
operating systems. The Intel Xeon processor 6500 and 7500 series supports all Streaming SIMD
Extensions (including SSE2, SSE3, and SSE4) and Intel 64 instruction.
The Intel Xeon processor 6500 and 7500 series 4S (Expandable Processor) uses a 1567-pins Land Grid
Array (LGA1567) package that plugs into a surface-mount socket. The M910 provides support for two
or four processors.
Table 5. Processor Cache Sizes (Package LGA1567)
Cache
Size
L1 cache size
32 KB instruction
(32 KB data)
L2 cache size
1.5MB or 2MB
L3 cache size
12MB, 18MB or 24MB (shared)
6.2 Features
Key features of the Intel Xeon processor 6500 and 7500 series include:
• Up to eight cores per socket
• Up to 24MB shared L3 cache
• 45nm process technology
• Four full‐width, bidirectional point‐to‐point Intel
®
QuickPath Interconnect (Intel
®
QPI)
links at 6.4 GT/s
• Support for 95W, 105W, and 130W processors
• Four Intel
®
Scalable Memory Interconnects (Intel
®
SMI) at 6.4 GT/s
• Socket—LS, LGA 1567 package
• No termination required for non‐populated CPUs (must populate CPU socket 1 first)
• Integrated Intel
®
QuickPath DDR3 memory controller
• 64‐byte cache line size
• RISC/CISC hybrid architecture
• Compatible with existing x86 code base
• Optimized for 32‐bit code
• MMX support
• Execute Disable Bit
• Intel
®
Wide Dynamic Execution
• Executes up to four instructions per clock cycle
• Simultaneous Multi‐Threading (SMT) capability (2 threads/core)
• Support for CPU Turbo Mode (on certain SKUs)
• Increases CPU frequency if operating below thermal, power, and current limits
• Streaming SIMD (Single Instruction, Multiple Data) Extension 4