Intel Core 2 Quad Q8400 vs. Intel Core i7 640M

CPU Comparison, Reviews and Tests
Intel Core 2 Quad Q8400
Intel Core i7 640M

In depth comparison and review of Intel Core 2 Quad Q8400 and Intel Core i7 640M. 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 2 Quad Q8400 vs. Intel Core i7 640M Benchmark Chart
GENERAL Intel Core 2 Quad Q8400 Intel Core i7 640M
Product Type Processor Processor (mobile)
PROCESSOR Intel Core 2 Quad Q8400 Intel Core i7 640M
Type Intel Core 2 Quad Q8400 Intel Core i7 640M
ARCHITECTURE
Processor Qty 1 1
Packaging Type - 1288-ball BGA
Compatible Processor Socket LGA775 Socket PGA988 Socket
Manufacturing Process 45 nm 32 nm
Thermal Design Power 95 W 35 W
Thermal Specification 71.4 °C -
PCI Express Revision - 2.0
PCI Express Configurations - 1x16
PCI Express Lanes Qty - 16
Architecture Features Enhanced SpeedStep technology, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, Enhanced Halt State (C1E), Intel Thermal Monitor 2 Enhanced SpeedStep technology, Hyper-Threading Technology, Execute Disable Bit capability, Intel Virtualization Technology, Intel Turbo Boost Technology, Intel 64 Technology, Intel Trusted Execution Technology, streaming SIMD extensions 4.1, streaming SIMD extensions 4.2, Intel Fast Memory Access
PERFORMANCE
Number of Cores Quad-Core Dual-Core
Number of Threads - 4 threads
Clock Speed (Frequency) 2.66 GHz 2.8 GHz
Max Turbo Speed - 3.46 GHz
Bus Speed 1333 MHz 667 MHz
64-bit Computing Yes Yes
CACHE MEMORY
Cache 4 MB 4 MB
Cache Memory Details L2 - 4 MB L3 - 4 MB
Installed Size 4 MB 4 MB
INTEGRATED GRAPHICS (GPU) Intel Core 2 Quad Q8400 Intel Core i7 640M
Type - Intel HD Graphics with Dynamic Frequency
Base Frequency - 500 MHz
Max Dynamic Frequency - 766 MHz
Features - Dual Display Capable, Intel FDI, Intel Clear Video Technology, Intel Clear Video HD Technology
EXPANSION & CONNECTIVITY Intel Core 2 Quad Q8400 Intel Core i7 640M
Compatible Slots 1 x processor - LGA775 Socket 1 x processor
MISCELLANEOUS Intel Core 2 Quad Q8400 Intel Core i7 640M
Service & Support Limited warranty - 3 years Limited warranty - 3 years
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