Intel Xeon W3520 vs. Intel Xeon E5-2643V3

CPU Comparison, Reviews and Tests
Intel Xeon W3520
Intel Xeon E5-2643V3

Side by side comparison and review of Intel Xeon W3520 and Intel Xeon E5-2643V3. 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 W3520 vs. Intel Xeon E5-2643V3 Benchmark Chart
GENERAL Intel Xeon W3520 Intel Xeon E5-2643V3
Product Type Processor Processor
PROCESSOR Intel Xeon W3520 Intel Xeon E5-2643V3
Type Intel Xeon W3520 Intel Xeon E5-2643V3
ARCHITECTURE
Processor Qty 1 1
Packaging Type FC-LGA8 -
Compatible Processor Socket LGA1366 Socket LGA2011-v3 Socket
Core Voltage - 0.65 V - 1.30 V
Manufacturing Process 45 nm 22 nm
Thermal Design Power 130 W 135 W
Thermal Specification 67.9 °C 77 °C
PCI Express Revision - 3.0
PCI Express Configurations - X16, x4, x8
PCI Express Lanes Qty - 40
Architecture Features Enhanced SpeedStep technology, streaming SIMD extensions 2, Hyper-Threading Technology, integrated memory controller, streaming SIMD extensions 3, Demand Based Switching, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, Intel I/O Acceleration Technology, streaming SIMD extensions 4 Integrated memory controller
PERFORMANCE
Number of Cores Quad-Core 6-core
Number of Threads 8 threads 12 threads
Clock Speed (Frequency) 2.66 GHz 3.4 GHz
Max Turbo Speed 2.93 GHz 3.7 GHz
Bus Speed 1066 MHz 4800 MHz
64-bit Computing Yes -
CACHE MEMORY
Cache 8 MB 20 MB
Cache Memory Details L3 - 8 MB 20 MB
Installed Size 8 MB 20 MB
Type Advanced Smart Cache -
RAM
Technology - ECC -
EXPANSION & CONNECTIVITY Intel Xeon W3520 Intel Xeon E5-2643V3
Interfaces - GT5 -
Compatible Slots 1 x processor -
MISCELLANEOUS Intel Xeon W3520 Intel Xeon E5-2643V3
Included Accessories - Additional fan
Compliant Standards - RoHS
Service & Support Limited warranty - 90 days Limited warranty - 1 year
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