Type
CPU / Microprocessor
Market segment
Desktop
Family
R 7
Model number ?
3800X
CPU part numbers
100-000000025 is an OEM/tray microprocessor
100-100000025BOX is a boxed microprocessor
Frequency?
3900 MHz
Maximum turbo frequency
4500 MHz
Socket
Socket AM4
Architecture / Microarchitecture
Microarchitecture
Zen 2
Processor c ?
Matisse [1]
Manufacturing process
0.007 micron FinFET process
Data width
64 bit
The number of CPU cores
8
The number of threads
16
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 512 KB 8-way set associative unified caches
Level 3 cache size
32 MB 16-way set associative shared cache
Cache latency
4 (L1 cache)
12 (L2 cache)
40 (L3 cache)
Multiprocessing
Uniprocessor
Extensions and Technologies
MMX instructions
Extensions to MMX
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 ?
SSE4a ?
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
SMT / Simultaneous MultiThreading
Precision Boost 2
Security Features
EVP / Enhanced a Protection ?
SMAP / Supervisor Mode Access Prevention
SMEP / Secure Mode Execution Protection
Integrated peripherals / components
Integrated graphics
None
Memory controller
Memory channels: 2
Supported memory: DDR4-3200
Other peripherals
PCI-Express 4.0 interface (16 lanes)
Electrical / Thermal parameters
Thermal Design Power?
105 Watt