Intel Xeon E5540 vs. Intel Pentium G645

CPU Comparison, Reviews and Tests
Intel Xeon E5540
Intel Pentium G645

In depth comparison and review of Intel Xeon E5540 and Intel Pentium G645. Compare dimensions, performance, cache memory, number of cores, clock speed, RAM, power efficiency and other important specifications and features to easily choose the right CPU for you. Our goal is to help you uncover differences between the products and find the processor that will best fit your needs.

CPUs Specifications Comparison

Intel Xeon E5540 vs. Intel Pentium G645 Benchmark Chart
GENERAL Intel Xeon E5540 Intel Pentium G645
Product Type Processor Processor
PROCESSOR Intel Xeon E5540 Intel Pentium G645
Type Intel Xeon E5540 Intel Pentium G645
ARCHITECTURE
Processor Qty 1 1
Compatible Processor Socket LGA1366 Socket LGA1155 Socket
Core Voltage 0.75 V - 1.35 V -
Manufacturing Process 45 nm 32 nm
Thermal Design Power 80 W 65 W
Thermal Specification 76 °C 69.1 °C
PCI Express Revision - 2.0
Architecture Features Enhanced SpeedStep technology, Demand Based Switching, Intel Virtualization Technology, Intel Turbo Boost Technology, Intel Dynamic Acceleration Enhanced SpeedStep technology, integrated memory controller, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, streaming SIMD extensions 4.1, streaming SIMD extensions 4.2, Intel Fast Memory Access, Intel Flex Memory Access, Thermal Monitoring Technologies, Idle States, Intel VT-x with Extended Page Tables (EPT)
PERFORMANCE
Number of Cores Quad-Core Dual-Core
Number of Threads 8 threads 2 threads
Clock Speed (Frequency) 2.53 GHz 2.9 GHz
Max Turbo Speed 2.8 GHz -
Bus Speed 1066 MHz -
64-bit Computing Yes -
CACHE MEMORY
Cache 8 MB 3 MB
Cache Level 1 Size 256 KB -
Cache Memory Details L2 - SLC NAND Flash - 8 MB L3 - 3 MB
Installed Size 8 MB 3 MB
Type SLC NAND Flash -
RAM
Technology DDR3 SDRAM - 1066 MHz -
INTEGRATED GRAPHICS (GPU) Intel Xeon E5540 Intel Pentium G645
Type - Intel HD Graphics with Dynamic Frequency
Base Frequency - 850 MHz
Max Dynamic Frequency - 1.1 GHz
Features - Dual Display Capable, Intel FDI
EXPANSION & CONNECTIVITY Intel Xeon E5540 Intel Pentium G645
Compatible Slots 1 x processor -
MISCELLANEOUS Intel Xeon E5540 Intel Pentium G645
Included Accessories Heat sink, voltage regulator module -
Compliant Standards RoHS -
Service & Support Limited warranty - 1 year - on-site Limited warranty - 3 years
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