|
|
Dual Core Xeon Processor 5000 Series Overview
|
|
|
|
The Dual-Core Intel® Xeon Processor 5000 series are Intel dual core products for dual processor (DP) servers and workstations. The Dual-Core Intel Xeon Processor 5000 series are 64-bit server/workstation processors utilizing two physical Intel NetBurst microarchitecture cores in one package. The Dual-Core Intel Xeon Processor 5000 series include enhancements to the Intel NetBurst microarchitecture while maintaining the tradition of compatibility with IA-32 software. Some key features include Hyper Pipelined Technology and an Execution Trace Cache. Hyper Pipelined Technology includes a multi-stage pipeline depth, allowing the processor to reach higher core frequencies. The Dual-Core Intel Xeon Processor 5000 series contain a total of 4 MB of L2 Advanced Transfer Cache, 2 MB per core. The 1066 MHz Front Side Bus (FSB) is a quad-pumped bus running off a 266 MHz system clock making 8.5 GBytes per second data transfer rates possible. The 667 MHz Front Side Bus (FSB) is a quad-pumped bus running off a 166 MHz system clock making 5.3 GBytes per second data transfer rates possible.
|
|
|
|
In addition, enhanced thermal and power management capabilities are implemented including Thermal Monitor (TM1) and Enhanced Intel SpeedStep® technology. These technologies are targeted for dual processor (DP) systems in enterprise environments. TM1 provides efficient and effective cooling in high temperature situations. Enhanced Intel SpeedStep technology provides power management capabilities to servers and workstations.
|
|
|
|
The Dual-Core Intel Xeon Processor 5000 series also include Hyper-Threading Technology (HT Technology) resulting in four logical processors per package. This feature allows multi-threaded applications to execute more than one thread per physical processor core, increasing the throughput of applications and enabling improved scaling for server and workstation workloads.
|
|
|
|
Other features within the Intel NetBurst microarchitecture include Advanced Dynamic Execution, Advanced Transfer Cache, enhanced floating point and multi-media units, and Streaming SIMD Extensions 3 (SSE3). Advanced Dynamic Execution improves speculative execution and branch prediction internal to the processor. The Advanced Transfer Cache in each core is a 2 MB level 2 (L2) cache. The floating point and multimedia units include 128-bit wide registers and a separate register for data movement. Streaming SIMD3 (SSE3) instructions provide highly efficient double-precision floating point, SIMD integer, and memory management operations. Other processor enhancements include core frequency improvements and microarchitectural improvements.
|
|
|
|
The Dual-Core Intel Xeon Processor 5000 series support Intel® Extended Memory 64 Technology (Intel® EM64T) as an enhancement to Intel's IA-32 architecture. This enhancement allows the processor to execute operating systems and applications written to take advantage of the 64-bit extension technology.
|
|
|
|
In addition, the Dual-Core Intel Xeon Processor 5000 series support the Execute Disable Bit functionality. When used in conjunction with a supporting operating system, Execute Disable allows memory to be marked as executable or non executable. This feature can prevent some classes of viruses that exploit buffer overrun vulnerabilities and can thus help improve the overall security of the system.
|
|
|
|
The Dual-Core Intel Xeon Processor 5000 series support Intel® Virtualization Technology, virtualization within the processor. Intel Virtualization Technology is a set of hardware enhancements that can improve virtualization solutions. Intel Virtualization Technology is used in conjunction with Virtual Machine Monitor software enabling multiple, independent software environments inside a single platform.
|
|
|
|
The Dual-Core Intel Xeon Processor 5000 series are intended for high performance workstation and server systems. The Dual-Core Intel Xeon Processor 5063 is a lower power version of the Dual-Core Intel Xeon Processor 5000 series. The Dual-Core Intel Xeon Processor 5000 series support a new Dual Independent Bus (DIB) architecture with one processor socket on each bus, up to two processor sockets in a system. The DIB architecture provides improved performance by allowing increased FSB speeds and bandwidth. The Dual-Core Intel Xeon Processor 5000 series will be packaged in an FCLGA6 Land Grid Array package with 771 lands for improved power delivery. It utilizes a surface mount LGA771 socket that supports Direct Socket Loading (DSL).
|
|
|
|
The Dual-Core Intel Xeon Processor 5000 series-based platforms implement independent core voltage (VCC) power planes for each processor. FSB termination voltage (VTT) is shared and must connect to all FSB agents. The processor core voltage utilizes power delivery guidelines specified by VRM/EVRD 11.0 and its associated load line. Refer to the appropriate platform design guidelines for implementation details. The Dual-Core Intel Xeon Processor 5000 series support a 1066/667 MHz Front Side Bus frequency. The FSB utilizes a split-transaction, deferred reply protocol and Source-Synchronous Transfer (SST) of address and data to improve performance. The processor transfers data four times per bus clock (4X data transfer rate, as in AGP 4X). Along with the 4X data bus, the address bus can deliver addresses two times per bus clock and is referred to as a ‘double-clocked’ or a 2X address bus. In addition, the Request Phase completes in one clock cycle. Working together, the 4X data bus and 2X address bus provide a data bus bandwidth of up to 8.5 GBytes/second. (5.3 GBytes/ second for Dual-Core Intel Xeon Processor 5000 series 667) Finally, the FSB is also used to deliver interrupts.
|
|
|
|
Next : Benefits for Business utilzing Xeon Platforms
|
|
|
|
|
|
|
