Intel Core i7 3840QM (3rd Gen) vs. Intel Pentium G645

CPU Comparison, Reviews and Tests

In depth comparison and review of Intel Core i7 3840QM (3rd Gen) 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 Core i7 3840QM (3rd Gen) vs. Intel Pentium G645 Benchmark Chart
GENERAL Intel Core i7 3840QM (3rd Gen) Intel Pentium G645
Product Type Processor (mobile) Processor
PROCESSOR Intel Core i7 3840QM (3rd Gen) Intel Pentium G645
Type Intel Core i7 3840QM (3rd Gen) Intel Pentium G645
ARCHITECTURE
Processor Qty 1 1
Compatible Processor Socket PGA988 Socket LGA1155 Socket
Manufacturing Process 22 nm 32 nm
Thermal Design Power 45 W 65 W
Thermal Specification 105 °C 69.1 °C
PCI Express Revision 3.0 2.0
PCI Express Configurations 1x16, 2x8, 1x8+2x4 -
PCI Express Lanes Qty 16 -
Architecture Features Enhanced SpeedStep technology, Hyper-Threading Technology, integrated memory controller, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, Intel Trusted Execution Technology, streaming SIMD extensions 4.1, streaming SIMD extensions 4.2, Intel Fast Memory Access, Intel Flex Memory Access, Intel Turbo Boost Technology 2.0, 4G WiMAX Wireless Technology, Intel My WiFi Technology, Intel Anti-Theft Technology, Intel Advanced Vector Extensions (AVX), Intel AES New Instructions (AES-NI), Thermal Monitoring Technologies, Intel Virtualization Technology for Directed I/O (VT-d), Intel vPro Technology, Idle States, Intel VT-x with Extended Page Tables (EPT) 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) 2.8 GHz 2.9 GHz
Max Turbo Speed 3.8 GHz -
CACHE MEMORY
Cache 8 MB 3 MB
Cache Memory Details L3 - 8 MB L3 - 3 MB
Installed Size 8 MB 3 MB
INTEGRATED GRAPHICS (GPU) Intel Core i7 3840QM (3rd Gen) Intel Pentium G645
Type Intel HD Graphics 4000 Intel HD Graphics with Dynamic Frequency
Base Frequency 650 MHz 850 MHz
Max Dynamic Frequency 1.3 GHz 1.1 GHz
Features Dual Display Capable, Intel FDI, Intel Clear Video HD Technology, InTRU 3D Technology, Intel Quick Sync Video, Intel Wireless Display (WiDi), Intel Insider, Triple Display Capable Dual Display Capable, Intel FDI
MISCELLANEOUS Intel Core i7 3840QM (3rd Gen) Intel Pentium G645
Compliant Standards Halogen-free -
Service & Support Limited warranty - 3 years Limited warranty - 3 years
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