Intel Xeon E5520 vs. Intel Core 2 Extreme QX9650

CPU Comparison, Reviews and Tests
Intel Xeon E5520
Intel Core 2 Extreme QX9650

Side by side comparison and review of Intel Xeon E5520 and Intel Core 2 Extreme QX9650. 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 E5520 vs. Intel Core 2 Extreme QX9650 Benchmark Chart
GENERAL Intel Xeon E5520 Intel Core 2 Extreme QX9650
Product Type Processor Processor
PROCESSOR Intel Xeon E5520 Intel Core 2 Extreme QX9650
Type Intel Xeon E5520 Intel Core 2 Extreme QX9650
ARCHITECTURE
Processor Qty 1 1
Packaging Type FC-LGA8 -
Compatible Processor Socket LGA1366 Socket LGA775 Socket
Core Voltage 1.4 V -
Manufacturing Process 45 nm 45 nm
Thermal Design Power 80 W 130 W
Thermal Specification 76 °C 64.5 °C
Architecture Features Hyper-Threading Technology, Intel Intelligent Power Technology, Intel Data Center Manager Enhanced SpeedStep technology, streaming SIMD extensions 2, streaming SIMD extensions 3, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, Intel Advanced Digital Media Boost, Intel Advanced Smart Cache, Intel Intelligent Power Capability, Intel Smart Memory Access, Intel Wide Dynamic Execution, supplemental streaming SIMD extensions 3, streaming SIMD extensions 4, Enhanced Halt State (C1E), Intel Thermal Monitor 2
PERFORMANCE
Number of Cores Quad-Core Quad-Core
Number of Threads 8 threads -
Clock Speed (Frequency) 2.26 GHz 3 GHz
Max Turbo Speed 2.53 GHz -
Bus Speed 1066 MHz 1333 MHz
64-bit Computing Yes Yes
CACHE MEMORY
Cache 8 MB 12 MB
Cache Memory Details Smart Cache - 8 MB L2 - 12 MB
Installed Size 8 MB 12 MB
Type Advanced Smart Cache Advanced Smart Cache
RAM
Technology DDR3 SDRAM - 1066 MHz -
EXPANSION & CONNECTIVITY Intel Xeon E5520 Intel Core 2 Extreme QX9650
Compatible Slots 1 x processor 1 x processor
MISCELLANEOUS Intel Xeon E5520 Intel Core 2 Extreme QX9650
Included Accessories Heat sink -
Compliant Standards RoHS -
Service & Support 1-year warranty Limited warranty - 90 days
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