Processor (CPU)
CPU Name
Intel® Core™ Ultra 9 285K
Threading
1 CPU / 2P + 2E Cores / 4 Threads
Frequency
4000 MHz (40 * 100 MHz) - Uncore: 3933.5 MHz
Multiplier
Current: 40 / Min: 4 / Max: 55
Architecture
Arrow Lake / Stepping: B0 / Technology: 3 nm
CPUID / Ext.
6.6.2 / 6.C6
IA Extensions
MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, EM64T, VT-x, AES, AVX, AVX2, FMA3, SHA
L1 Data Cache
2 x 48 KB (12-way, 64-byte line) + 2 x 32 KB (8-way, 64-byte line)
L1 Inst. Cache
2 x 64 KB (16-way, 64-byte line) + 2 x 64 KB (8-way, 64-byte line)
L2 Cache
2 x 3 MB (12-way, 64-byte line) + 4 MB (16-way, 64-byte line)
L3 Cache
36 MB (12-way, 64-byte line)
Microcode
Rev. 0x117
TDP / Vcore
125 Watts / 1.409 Volts
Temperature
105 °C / 221 °F
Type
Retail (Stock Frequency : 3700 MHz)
P-Cores Freq.
P00: 4000.00 MHz  P01: 4000.00 MHz 
E-Cores Freq.
E02: 4000.00 MHz  E03: 4000.00 MHz 
Motherboard
Model
Asus ROG MAXIMUS Z890 APEX
Socket
Socket 1851 LGA
North Bridge
Intel Arrow Lake rev 01
South Bridge
Intel Z890 rev 10
BIOS
American Megatrends Inc. 9905 (04/10/2025)
Memory (RAM)
Total Size
24576 MB
Type
Single Channel (32 bit) DDR5-SDRAM
Frequency
6417.8 MHz (DDR5-12836) - Ratio 3:186
Timings
68-127-127-127-2 (tCAS-tRCD-tRP-tRAS-tCR)
Slot #1 Module
G.Skill 24576 MB (DDR5-5600) - XMP 3.0 - P/N: F5-8000J3848F24G
Graphic Card (GPU)
Miscellaneous
Windows Version
Microsoft Windows 10 Enterprise Edition (x64)
CPU-Z Version
2.15.0 (32 bit)