Intel Xeon X5570 Manuale utente

Intel®Xeon™ Processor 5500 Series

What’s new about the Intel Xeon Processor 5500 Series (codenamed Nehalem)?

Integrated Memory Controller featuring QuickPath Interconnect (QPI)

QuickPath Technology means that each processor core features an integrated memory controller and high-

speed interconnect, linking processors and other components to deliver dynamically scalable interconnect

bandwidth, outstanding memory performance and flexibility, and tightly integrated interconnect reliability,

availability, and serviceability (RAS).

Intel® Turbo Boost Technology

Turbo Boost delivers additional performance automatically when needed by taking advantage of the processor's

power and thermal headroom. This enables increased performance of both multi-threaded and single-threaded

workloads.

Intel®Hyper-Threading Technology

Hyper-Threading allows thread-level parallelism on each processor resulting in more efficient use of processor

resources. With higher processing throughput, you enjoy substantially improved performance.

DDR3 Memory

The move to DDR3 memory offers increased performance due to higher memory speeds, and reduced power

consumption compared to FB-DDR2 memory operating at the same speed.

Improved Energy Efficiency

The new Intel microarchitecture allows for more efficient load and idle performance. Core states are managed in

response to demand in order to remain within the thermal envelope.

Dramatically Increased Performance

Dramatically Decreased Energy Consumption

Intel®Xeon™ Processor 5500 Series

Product Specifications

Value-add features available on higher-end processors.

Max Turbo Boost frequency based on number of 133-MHz increments above base frequency (+2 = 0.266 GHz, +3 = 0.400 GHz)

TDP CPU Number Usage Cores Cache Link Speed Max Mem

Speed Turbo

Boost

95W X5570 (2.93 GHz) Advanced 4 8MB 6.4 GT/s 1333 MHz +3 9

X5560 (2.80 GHz)

X5550 (2.66 GHz)

80W E5540 (2.53 GHz) Standard 4 8MB 5.86 GT/s 1066 MHz +2 9

E5530 (2.40 GHz)

80W 60W

E5520 (2.26 GHz) L5520 Low

Power

E5506 (2.13 GHz) L5506

2 - 4 4MB 4.8 GT/s 800 MHz No Turbo No HT

80W E5504 (2.00 GHz) Basic

E5502 (1.86 GHz) 2 cores

Intel®Xeon™ Processor 5500 Series

Matching Processor to Memory: Selection Guidance

Memory Requirement Max Bandwidth Balanced Performance Max Capacity

Sample Deployments HPC General Purpose Enterprise

Workloads Virtualized Environment

Memory Technology DDR3 1333 DDR3 1066 DDR3 800

32 GB/s 25.5 GB/s 19.2 GB/s

48GB (max) 96 GB (max) 144 GB (max)

Available CPU Options

Advanced 95W

●8M cache

●6.4 GT/s QPI

●HT

●Turbo Boost

Standard 80W

●8M cache

●5.86 GT/s QPI

●HT

●Turbo Boost

Basic 80W

●4M cache

●4.8 GT/s QPI

X5570 2.93 GHz X5570 2.93 GHz X5570 2.93 GHz

X5560 2.80 GHz X5560 2.80 GHz X5560 2.80 GHz

X5550 2.66 GHz X5550 2.66 GHz X5550 2.66 GHz

E5540 2.53 GHz E5540 2.53 GHz

E5530 2.40 GHz E5530 2.40 GHz

E5520 2.26 GHz E5520 2.26 GHz

E5506 2.13 GHz

E5504 2.00 GHz

E5502 1.86 GHz 2 cores

Intel®Xeon™ Processor 5500 Series

Memory Population Scenarios

Maximum Bandwidth:

●DDR3 1333 across 3 channels per CPU

●1 DIMMs per channel (6 DIMMs)

Balanced Performance:

●DDR3 1066 across 3 channels per CPU

●Up to 2 DIMMs per channel (12 DIMMs)

Maximum Capacity:

●DDR3 800 across 3 channels per CPU

●Up to 3 DIMMs per channel (18 DIMMs

total)

CPU CPU

10.6 GB/s

10.6

CPU CPU

8.5 GB/s

8.5

CPU CPU

6.4 GB/s

6.4

CPUs

E5520

and

above

All

5500

SKUs

X5550

and

above

For maximum bandwidth, you want the fastest memory speed, which requires one of the Advanced CPU SKUs (X55xx). Since

1333MHz memory is only supported at up to 1 DIMM per channel, the maximum installation with 2 CPUs would be 6 DIMMs.

For maximum capacity, you want to be able to install as many DIMMs as possible. Populating 3 DIMMs per channel will result in the

memory running at a maximum of 800MHz, meaning you can choose any of the Xeon 5500 SKUs, since they all support 800MHz or

higher, and will clock down memory speed if necessary, to support 3 DIMMs per channel.

gFor systems offering 18 DIMMs, please contact your Silicon Mechanics sales representative.

Intel®Xeon™ Processor 5500 Series

Balanced vs. Unbalanced Memory Population Considerations

CPU CPU

Recommended: Balanced Memory Population

●Use a “balanced” platform configuration: populate the same number of DIMMs for each channel and each socket.

●Use identical DIMM types throughout the platform: same size, speed, and number of ranks.

Alternatives: Unbalanced Memory Population “2-1-1” (not recommended)

Balanced 1-1-1 Memory Population

CPU CPU

Option 1 Option 2

Population Scenario

●Interleave the first 3 DIMMs equally across the 3 channels

and add the 4th DIMM to the first channel.

Performance Consideration: Unpredictable Performance

●If your application uses only the first three DIMMs, your

results will be the same as in a balanced 1-1-1 memory

population scenario.

●If the 4th DIMM is used, your performance will be reduced

to the equivalent of a single channel.

Population Scenario

●Interleave across all four DIMMs equally.

Performance Consideration: Bandwidth Bottleneck

●For every memory request the application makes to channels

2 and 3, channel 1 will need to handle two requests.

●The doubled number of requests to channel 1 will result

in a bottleneck of your bandwidth.

Intel Xeon Processor 5500 Series

For answers regarding processor selection,

memory matching, or other questions you may have,

contact one of the Experts at Silicon Mechanics:

Email: [email protected]

Toll Free: 866.352.1173

www.siliconmechanics.com

Contact Silicon Mechanics

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