Intel Core i5 7400 (7th Gen) vs. Intel Core i7 7820X X-series (7th Gen)

CPU Comparison, Reviews and Tests

Detailed comparison and review of Intel Core i5 7400 (7th Gen) and Intel Core i7 7820X X-series (7th Gen). With our comprehensive overview, you can simply compare overall performance, cache sizes, RAM, power efficiency, architecture, but also other key features of both processors and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the processor that best fits your needs and expectations.

CPUs Specifications Comparison

Intel Core i5 7400 (7th Gen) vs. Intel Core i7 7820X X-series (7th Gen) Benchmark Chart
GENERAL Intel Core i5 7400 (7th Gen) Intel Core i7 7820X X-series (7th Gen)
Product Type Processor Processor
PROCESSOR Intel Core i5 7400 (7th Gen) Intel Core i7 7820X X-series (7th Gen)
Type Intel Core i5 7400 (7th Gen) Intel Core i7 7820X X-series (7th Gen)
ARCHITECTURE
Processor Qty 1 1
Compatible Processor Socket LGA1151 Socket LGA2066 Socket
Manufacturing Process 14 nm 14 nm
Thermal Design Power 65 W 140 W
Thermal Specification 100 °C -
PCI Express Revision 3.0 3.0
PCI Express Configurations 1x16, 2x8, 1x8+2x4 -
PCI Express Lanes Qty 16 28
Architecture Features Enhanced SpeedStep technology, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, Intel Trusted Execution Technology, Intel Turbo Boost Technology 2.0, Intel AES New Instructions (AES-NI), Thermal Monitoring Technologies, Intel Virtualization Technology for Directed I/O (VT-d), Idle States, Intel Identity Protection Technology, Intel Secure Key, Intel Advanced Vector Extensions 2 (AVX2.0), Intel TSX-NI, Intel Software Guard Extensions (SGX), Intel Memory Protection Extensions (MPX), Intel Device Protection Technology with Boot Guard 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)
PERFORMANCE
Number of Cores Quad-Core 8-core
Number of Threads 4 threads 16 threads
Clock Speed (Frequency) 3 GHz 3.6 GHz
Max Turbo Speed 3.5 GHz 4.3 GHz
CACHE MEMORY
Cache 6 MB 11 MB
Cache Memory Details Smart Cache - 6 MB L3 - Smart Cache - 11 MB
INTEGRATED GRAPHICS (GPU) Intel Core i5 7400 (7th Gen) Intel Core i7 7820X X-series (7th Gen)
Type Intel HD Graphics 630 -
Base Frequency 350 MHz -
Max Dynamic Frequency 1 GHz -
Max Supported Memory Size 64 GB -
Max Supported Resolution 4096x2304@24Hz (HDMI), 4096x2304@60Hz (eDP), 4096x2304@60Hz (DP) -
Features Intel Clear Video Technology, Intel Clear Video HD Technology, InTRU 3D Technology, Intel Quick Sync Video, Triple Display Capable -
MISCELLANEOUS Intel Core i5 7400 (7th Gen) Intel Core i7 7820X X-series (7th Gen)
Service & Support - Limited warranty - 3 years
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