Processor (CPU)
CPU Name
Intel® Core™ Ultra 9 285K
Threading
1 CPU / 8P + 16E Cores / 24 Threads
Frequency
5400 MHz (54 * 100 MHz) - Uncore: 4085.5 MHz
Multiplier
Current: 54 / Min: 4 / Max: 57
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
8 x 48 KB (12-way, 64-byte line) + 16 x 32 KB (8-way, 64-byte line)
L1 Inst. Cache
8 x 64 KB (16-way, 64-byte line) + 16 x 64 KB (8-way, 64-byte line)
L2 Cache
8 x 3 MB (12-way, 64-byte line) + 4 x 4 MB (16-way, 64-byte line)
L3 Cache
36 MB (12-way, 64-byte line)
Microcode
Rev. 0x114
TDP / Vcore
125 Watts / 1.154 Volts
Temperature
46 °C / 115 °F
Type
Engineering Sample
P-Cores Freq.
P00: 5400.00 MHz  P01: 1400.00 MHz  P10: 1400.00 MHz  P11: 5400.00 MHz 
P12: 4900.00 MHz  P13: 4900.00 MHz  P22: 1400.00 MHz  P23: 1400.00 MHz 
E-Cores Freq.
E02: 4600.00 MHz  E03: 4600.00 MHz  E04: 4600.00 MHz  E05: 4600.00 MHz 
E06: 4600.00 MHz  E07: 4600.00 MHz  E08: 4600.00 MHz  E09: 4600.00 MHz 
E14: 4600.00 MHz  E15: 4600.00 MHz  E16: 4600.00 MHz  E17: 4600.00 MHz 
E18: 4600.00 MHz  E19: 4600.00 MHz  E20: 4600.00 MHz  E21: 4600.00 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. 1401 (01/09/2025)
Memory (RAM)
Total Size
24576 MB
Type
Dual Channel (64 bit) DDR5-SDRAM
Frequency
5238.5 MHz (DDR5-10478) - Ratio 3:150
Timings
52-120-120-127-2 (tCAS-tRCD-tRP-tRAS-tCR)
Slot #1 Module
Kingston 24576 MB (DDR5-6400) - XMP 3.0 - P/N: KF584C40-24
Graphic Card (GPU)
GPU #1 Type
Intel(R) Graphics
GPU #1 Brand
ASUSTeK Computer Inc.
GPU #2 Type
Intel(R) Arc(TM) A770 Graphics (ACM-G10)
GPU #2 Brand
Intel Corporation
GPU #2 VRAM
16256 MB
Storage (HDD/SSD)
Model #1 Name
KBG40ZNV256G KIOXIA (FW: HP00AE00)
Model #1 Capacity
238.5 GiB (~260 GB)
Model #1 Type
Fixed, SSD - Bus: NVMe (17)
Display
Screen #1
Samsung U28H75x (SAM0DFE)
Screen #1 Spec
27.7 inches (70.4 cm) / 3840 x 2160 pixels @ 24-75 Hz
Miscellaneous
Windows Version
Microsoft Windows 11 Professional (x64)
CPU-Z Version
2.13.0 (64 bit)