Intel Core 2 Quad Q8400 vs. Intel Core i7 6900K (6th Gen)

CPU Comparison, Reviews and Tests

In depth comparison and review of Intel Core 2 Quad Q8400 and Intel Core i7 6900K (6th Gen). 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 6900K (6th Gen) Benchmark Chart
GENERAL Intel Core 2 Quad Q8400 Intel Core i7 6900K (6th Gen)
Product Type Processor Processor
PROCESSOR Intel Core 2 Quad Q8400 Intel Core i7 6900K (6th Gen)
Type Intel Core 2 Quad Q8400 Intel Core i7 6900K (6th Gen)
ARCHITECTURE
Processor Qty 1 1
Compatible Processor Socket LGA775 Socket LGA2011-v3 Socket
Manufacturing Process 45 nm 14 nm
Thermal Design Power 95 W 140 W
Thermal Specification 71.4 °C -
PCI Express Revision - 3.0
PCI Express Lanes Qty - 40
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 64 Technology, Intel Turbo Boost Technology 2.0, Intel AES New Instructions (AES-NI), Intel Virtualization Technology for Directed I/O (VT-d), Idle States, Intel VT-x with Extended Page Tables (EPT), Intel Smart Response Technology
PERFORMANCE
Number of Cores Quad-Core 8-core
Number of Threads - 16 threads
Clock Speed (Frequency) 2.66 GHz 3.2 GHz
Max Turbo Speed - 3.7 GHz
Bus Speed 1333 MHz -
64-bit Computing Yes -
CACHE MEMORY
Cache 4 MB 20 MB
Cache Memory Details L2 - 4 MB 20 MB
Installed Size 4 MB -
EXPANSION & CONNECTIVITY Intel Core 2 Quad Q8400 Intel Core i7 6900K (6th Gen)
Compatible Slots 1 x processor - LGA775 Socket -
MISCELLANEOUS Intel Core 2 Quad Q8400 Intel Core i7 6900K (6th Gen)
Service & Support Limited warranty - 3 years -
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