Intel Core i7 7820X X-series (7th Gen) vs. Intel Core i5 7640X X-series (7th Gen)

CPU Comparison, Reviews and Tests

Side by side comparison and review of Intel Core i7 7820X X-series (7th Gen) and Intel Core i5 7640X X-series (7th Gen). Compare overall performance, core and thread counts, cache memory, speed, power efficiency, dimensions, socket compatibility and other key specifications and features to simplify the choice of your perfect CPU. Our goal is to make it easier for you to decide on the processor that will best meet your expectations by revealing the main differences between the products.

CPUs Specifications Comparison

Intel Core i7 7820X X-series (7th Gen) vs. Intel Core i5 7640X X-series (7th Gen) Benchmark Chart
GENERAL Intel Core i7 7820X X-series (7th Gen) Intel Core i5 7640X X-series (7th Gen)
Product Type Processor Processor
PROCESSOR Intel Core i7 7820X X-series (7th Gen) Intel Core i5 7640X X-series (7th Gen)
Type Intel Core i7 7820X X-series (7th Gen) Intel Core i5 7640X X-series (7th Gen)
ARCHITECTURE
Processor Qty 1 1
Compatible Processor Socket LGA2066 Socket LGA2066 Socket
Manufacturing Process 14 nm 14 nm
Thermal Design Power 140 W 112 W
PCI Express Revision 3.0 3.0
PCI Express Configurations - 1x16, 2x8, 1x8+2x4
PCI Express Lanes Qty 28 16
Architecture Features Enhanced SpeedStep technology, Hyper-Threading Technology, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, streaming SIMD extensions 4.1, streaming SIMD extensions 4.2, Intel Turbo Boost Technology 2.0, Intel AES New Instructions (AES-NI), Intel Virtualization Technology for Directed I/O (VT-d), Intel Advanced Vector Extensions 2 (AVX2.0), Intel Turbo Boost Max Technology 3.0, Intel Optane Memory Supported, Intel Advanced Vector Extensions 512 (AVX-512) Intel Virtualization Technology, Intel 64 Technology, streaming SIMD extensions 4.1, streaming SIMD extensions 4.2, Intel Turbo Boost Technology 2.0, Intel AES New Instructions (AES-NI), Intel Virtualization Technology for Directed I/O (VT-d), Intel Advanced Vector Extensions 2 (AVX2.0), Intel Optane Memory Supported
PERFORMANCE
Number of Cores 8-core Quad-Core
Number of Threads 16 threads 4 threads
Clock Speed (Frequency) 3.6 GHz 4 GHz
Max Turbo Speed 4.3 GHz 4.2 GHz
CACHE MEMORY
Cache 11 MB 6 MB
Cache Memory Details L3 - Smart Cache - 11 MB L3 - Smart Cache - 6 MB
MISCELLANEOUS Intel Core i7 7820X X-series (7th Gen) Intel Core i5 7640X X-series (7th Gen)
Service & Support Limited warranty - 3 years Limited warranty - 3 years
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