Intel Xeon X5660 vs. Intel Xeon E5520

CPU Comparison, Reviews and Tests
Intel Xeon X5660
Intel Xeon E5520

Side by side comparison and review of Intel Xeon X5660 and Intel Xeon E5520. Compare overall performance, core and thread counts, cache memory, speed, power efficiency, dimensions, socket compatibility and other key specifications and features to simplify the choice of your perfect CPU. Our goal is to make it easier for you to decide on the processor that will best meet your expectations by revealing the main differences between the products.

CPUs Specifications Comparison

Intel Xeon X5660 vs. Intel Xeon E5520 Benchmark Chart
GENERAL Intel Xeon X5660 Intel Xeon E5520
Product Type Processor Processor
PROCESSOR Intel Xeon X5660 Intel Xeon E5520
Type Intel Xeon X5660 Intel Xeon E5520
ARCHITECTURE
Processor Qty 1 1
Packaging Type - FC-LGA8
Compatible Processor Socket LGA1366 Socket LGA1366 Socket
Core Voltage 1.3 V 1.4 V
Manufacturing Process 32 nm 45 nm
Thermal Design Power 95 W 80 W
Thermal Specification 81.3 °C 76 °C
Architecture Features Hyper-Threading Technology, Demand Based Switching, Execute Disable Bit capability, Intel Virtualization Technology Hyper-Threading Technology, Intel Intelligent Power Technology, Intel Data Center Manager
PERFORMANCE
Number of Cores 6-core Quad-Core
Number of Threads 12 threads 8 threads
Clock Speed (Frequency) 2.8 GHz 2.26 GHz
Max Turbo Speed 3.2 GHz 2.53 GHz
Bus Speed 1333 MHz 1066 MHz
64-bit Computing Yes Yes
CACHE MEMORY
Cache 12 MB 8 MB
Cache Level 1 Size 384 KB -
Cache Memory Details L3 - 12 MB
L2 - 1 MB		 Smart Cache - 8 MB
Installed Size 12 MB 8 MB
Type - Advanced Smart Cache
RAM
Max Supported Size 288 GB -
Technology DDR3 SDRAM DDR3 SDRAM - 1066 MHz
EXPANSION & CONNECTIVITY Intel Xeon X5660 Intel Xeon E5520
Compatible Slots 1 x processor 1 x processor
MISCELLANEOUS Intel Xeon X5660 Intel Xeon E5520
Included Accessories Heat sink Heat sink
Compliant Standards RoHS RoHS
Service & Support Limited warranty - 1 year - on-site 1-year warranty
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