Intel Xeon E5-2640 vs. Intel Pentium G645

CPU Comparison, Reviews and Tests

In depth comparison and review of Intel Xeon E5-2640 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 E5-2640 vs. Intel Pentium G645 Benchmark Chart
GENERAL Intel Xeon E5-2640 Intel Pentium G645
Product Type Processor Processor
PROCESSOR Intel Xeon E5-2640 Intel Pentium G645
Type Intel Xeon E5-2640 Intel Pentium G645
ARCHITECTURE
Processor Qty 1 1
Compatible Processor Socket LGA2011 Socket LGA1155 Socket
Core Voltage 0.6 V - 1.35 V -
Manufacturing Process 32 nm 32 nm
Thermal Design Power 95 W 65 W
Thermal Specification 73 °C 69.1 °C
PCI Express Revision 3.0 2.0
PCI Express Lanes Qty 40 -
Architecture Features Enhanced SpeedStep technology, Hyper-Threading Technology, Demand Based Switching, Execute Disable Bit capability, Intel 64 Technology, Intel Trusted Execution Technology, Intel Flex Memory Access, Intel Turbo Boost Technology 2.0, Intel AES New Instructions (AES-NI), Thermal Monitoring Technologies, Intel Virtualization Technology for Directed I/O (VT-d), Intel vPro Technology, Idle States 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 6-core Dual-Core
Number of Threads 12 threads 2 threads
Clock Speed (Frequency) 2.5 GHz 2.9 GHz
Max Turbo Speed 3 GHz -
Bus Speed 1333 MHz -
64-bit Computing Yes -
CACHE MEMORY
Cache 15 MB 3 MB
Cache Memory Details Smart Cache - 15 MB L3 - 3 MB
Installed Size 15 MB 3 MB
INTEGRATED GRAPHICS (GPU) Intel Xeon E5-2640 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 E5-2640 Intel Pentium G645
Compatible Slots 1 x processor - LGA2011 Socket -
MISCELLANEOUS Intel Xeon E5-2640 Intel Pentium G645
Included Accessories Cooler (fansink) -
Compliant Standards RoHS -
Service & Support Limited warranty - 1 year - on-site Limited warranty - 3 years
Languages:
Other projects: