General information
Type
CPU / Microprocessor
Market segment
Desktop
Family
CPU part numbers
CM8068403874219is an OEM/tray microprocessor
CM8068403874220is an OEM/tray microprocessor
BX80684I79700KFis a boxed processor (English version)
BXC80684I7970KFis a boxed processor (Chinese version)
Frequency?
3600 MHz
Maximum turbo frequency
4900 MHz
Low power frequency
800 MHz
Clock multiplier?
36
Socket 1151 / H4 / LGA1151
S-spec numbers
Architecture / Microarchitecture
Microarchitecture
Coffee Lake
Processor c?
Coffee Lake-S
c steppings?
P0 (SRFAC)
R0 (SRG16)
Manufacturing process
0.014 micron
Data width
64 bit
The number of CPU cores
8
The number of threads
8
Floating Point Unit
Integrated
Level 1 cache size?
8 x 32 KB 8-way set associative instruction caches
8 x 32 KB 8-way set associative data caches
Level 2 cache size?
8 x 256 KB 4-way set associative caches
Level 3 cache size
12 MB 12-way set associative shared cache
Physical memory
128 GB
Multiprocessing
Uniprocessor
Extensions and Technologies
MMX instructions
SSE / Streaming SIMD Extensions
SSE2 / Streaming SIMD Extensions 2
SSE3 / Streaming SIMD Extensions 3
SSSE3 / Supplemental Streaming SIMD Extensions 3
SSE4 / SSE4.1 + SSE4.2 / Streaming SIMD Extensions 4?
AES / Advanced Encryption Standard instructions
AVX / Advanced Vector Extensions
AVX2 / Advanced Vector Extensions 2.0
BMI / BMI1 + BMI2 / Bit Manipulation instructions
F16C / 16-bit Floating-Point conversion instructions
FMA3 / 3-operand Fused Multiply-Add instructions
VT-x / Virtualization technology?
VT-d / Virtualization for directed I/O
TBT 2.0 / Turbo Boost technology 2.0?
TSX / Transactional Synchronization Extensions
Security Features
NX / XD / Execute disable bit?
MPX / Memory Protection Extensions
SGX / Software Guard Extensions
SMAP / Supervisor Mode Access
SMEP / Secure Mode Execution
Low power features
c C1/C1E, C3, C6, C7, C8, C9 and C10 states
Package C2, C3, C6, C7, C8, C9 and C10 states
Enhanced / technology?
Integrated peripherals / components
Integrated graphics
None
Memory controller
The number of controllers: 1
Memory channels: 2
Channel width (bits): 64
Supported memory: DDR4-2666
DIMMs per channel: 2
Maximum memory bandwidth (GB/s): 42.7
Other peripherals
Direct Media Interface 3.0 (4 lanes)
PCI Express 3.0 interface (16 lanes)
Electrical / Thermal parameters
Minimum/Maximum operating temperature?
0°C (case temperature) - 65°C (case temperature)[1]
100°C (Digital Thermal Sensor)
Thermal Design Power?
95 Watt
Notes on c i7-9700KF
The processor has unlocked clock multiplier
Optane memory is supported
Package C10 low power state is not supported on 200 series chipsets
The processor has the following security, data protection and/or software features: Secure Key, Identity Protection technology, OS Guard and Boot Guard.