Intel Core i7-7800X серии X vs Intel Core i7-6850K: comparison

Comparison of Intel Core i7-7800X серии X and Intel Core i7-6850K: key differences and a full specification table.

Key differences

Intel Core i7-7800X серии X has a higher maximum clock (4 GHz vs 3.8 GHz).

At the same time, Intel Core i7-6850K has a higher base clock (3.6 GHz vs 3.5 GHz).

Both processors match on: core count (6), thread count (12), TDP (140 W), process node (14 nm), maximum memory size (128 GB), memory channels (4), PCIe version (3).

These are specification values: they show differences between the models but do not determine a performance winner. For a specific workload, rely on independent benchmarks.

Key specifications

ParameterIntel Core i7-7800X серии XIntel Core i7-6850K
Cores / threads 6 / 12 6 / 12
Max boost clock 4 GHz 3.8 GHz
L3 cache 8.25 MB —
TDP 140 W 140 W
Process 14 nm 14 nm

Full specification table

Differing values are highlighted. This is not a better/worse rating: numbers from different architectures are not always comparable.

Parameter Intel Core i7-7800X серии X Intel Core i7-6850K
General
Model i7-7800X i7-6850K
Codename Skylake Broadwell E
Segment Desktop Desktop
Product line Процессоры Intel Core серии X Процессоры Intel Core серии X
Process 14 nm 14 nm
Launch date Q2 2017 Q2 2016
Status Discontinued Discontinued
Servicing status Baseline Servicing End of Servicing Lifetime
End of servicing updates 12/31/2023 06/30/2021
Embedded options available No No
Box contents Please note: The boxed product does not include a fan or heat sink Please note: The boxed product does not include a fan or heat sink
CPU
Cores 6 6
Threads 12 12
Multithreading (SMT/HT) Yes Yes
Base clock 3.5 GHz 3.6 GHz
Max boost clock 4 GHz 3.8 GHz
Turbo Boost Max 3.0 frequency — 4 GHz
Turbo Boost 2.0 frequency 4 GHz —
L3 cache 8.25 MB —
Cache (level unspecified) — 15 MB
Bus speed 8 GT/s —
TDP 140 W 140 W
Turbo Boost Yes (2) Yes (2)
64-bit support Yes Yes
Instruction set width 64 bit 64 bit
Instruction set extensions SSE4.1, SSE4.2, AVX2, AVX-512 —
QPI links 0 —
Memory
Max memory size 128 GB 128 GB
Memory types DDR4 DDR4
Memory channels 4 4
Max memory bandwidth 77 GB/s —
ECC memory supported No No
I/O and interfaces
PCI Express revision 3 3
PCI Express lanes 28 40
Scalability 1S Only 1S Only
Package and thermal
Sockets supported FCLGA2066 FCLGA2011-3
Max CPU configuration 1 1
TJUNCTION 100 °C —
TCASE — 67.2 °C
Thermal solution specification PCG 2017X —
Security and virtualization
Virtualization (VT-x / AMD-V) Yes Yes
Virtualization for Directed I/O (VT-d) Yes Yes
Extended Page Tables (EPT) — Yes
AES-NI Yes Yes
Execute Disable Bit Yes Yes
Intel Trusted Execution Technology — No
Technologies
Enhanced SpeedStep Yes Yes
Idle States — Yes
Turbo Boost Max 3.0 — Yes
Optane Memory Supported Yes —
Smart Response Technology — Yes
AVX-512 FMA units 2 —

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