Core Ultra 9 285K: specs and benchmarks

Summary

Intel started Core Ultra 9 285K sales 24 October 2024 at a recommended price of $589. Based on an Arrow Lake-S architecture, this desktop processor is primarily aimed at home systems. It has 24 cores and 24 threads, and is based on 3 nm manufacturing technology, with a max turbo frequency of 5600 MHz and an unlocked multiplier.

Compatibility-wise, this is FCLGA1851 processor with a TDP of 125 Watt. It supports DDR5-6400 memory.

Primary details

Core Ultra 9 285K processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in the ranking	57
Place by popularity	not in top-100
Cost-effectiveness evaluation	74.38
Market segment	Desktop processor
Power efficiency	32.35	of 100.00 (Ryzen Z1 Extreme)
Architecture codename	Arrow Lake-S (2024−2025)
Release date	24 October 2024 (less than a year ago)
Launch price (MSRP)	$589	of 17,906 (Xeon Platinum 8280L)

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores	24 (Tetracosa-Core)
Performance-cores	8	of 60 (Xeon w9-3595X)
Efficient-cores	16
Threads	24
Base clock speed	3.7 GHz	of 4.7 GHz (FX-9590)
Boost clock speed	5.6 GHz	of 6.2 GHz (Core i9-14900KS)
Bus rate	250 MHz
L1 cache	112 KB (per core)	of 80 KB (EPYC 9965)
L2 cache	3 MB (per core)	of 2 MB (Xeon 6980P)
L3 cache	36 MB (shared)	of 1152 MB (EPYC 9684X)
Chip lithography	3 nm
Die size	243 mm2
Number of transistors	17,800 million	of 135,240 million (EPYC 9684X)
64 bit support	+
Unlocked multiplier	+

Compatibility

Information on Core Ultra 9 285K compatibility with other computer components and devices: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	of 8 (Opteron 842)
Socket	FCLGA1851
Power consumption (TDP)	125 Watt	of 500 Watt (Xeon 6960P)

Technologies and extensions

Technological capabilities and additional instructions supported by Core Ultra 9 285K. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+
AVX	+
vPro	+
Enhanced SpeedStep (EIST)	+
Speed Shift	+
Turbo Boost Technology	2.0
TSX	+
Idle States	+
Thermal Monitoring	+
SIPP	+
Turbo Boost Max 3.0	+
Deep Learning Boost	+
Supported AI Software Frameworks	OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN

Security technologies

Processor technologies aimed at improving security, for example, by protecting against hacks.

TXT	+
EDB	+
Secure Key	+
OS Guard	+

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

VT-d	+
VT-x	+
EPT	+

Memory specs

Types, maximum amount and channel number of RAM supported by Core Ultra 9 285K's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory types	DDR5-6400
Maximum memory size	192 GB	of 6 TiB (EPYC 9124)
Max memory channels	2	of 12 (Xeon Platinum 9221)
ECC memory support	+

Graphics specifications

General parameters of a GPU integrated into Core Ultra 9 285K.

Integrated graphics card	Intel® Graphics
Quick Sync Video	+
Graphics max frequency	2 GHz

Graphics interfaces

Available interfaces and connections of Core Ultra 9 285K's integrated GPU.

Number of displays supported

4

Graphics image quality

Maximum display resolutions supported by Core Ultra 9 285K's integrated GPU, including resolutions over different interfaces.

Max resolution over HDMI 1.4	4K @ 60Hz (HDMI 2.1 TMDS) 8K @ 60Hz (HDMI2.1 FRL)
Max resolution over eDP	4K @ 60Hz
Max resolution over DisplayPort	8K @ 60Hz

Graphics API support

APIs supported by Core Ultra 9 285K's integrated GPU, sometimes API versions are included.

DirectX	12
OpenGL	4.5

Peripherals

Specifications and connection types of supported peripherals.

PCIe version	5.0 and 4.0
PCI Express lanes	20	of 128 (EPYC 7551P)

Benchmark performance

Single-core and multi-core benchmark results of Core Ultra 9 285K. Overall benchmark performance is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

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Closest competitors

Core Ultra 9 285K's performance relative to its closest rivals among desktop CPUs.

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