AMD Ryzen 9 9900X3D vs Intel Core Ultra 9 285K — Specifications, performance, tests

Differences
Specifications Benchmarks Testimonials

Differences

Reasons to consider
AMD Ryzen 9 9900X3D

Report a bug

Higher clock speed

Around 19% better clock speed

4.4 GHz 3.70 GHz
Lower stated TDP / base power

Power limits alone do not measure performance per watt.

120 W 125 W

Reasons to consider
Intel Core Ultra 9 285K

Report a bug

More number of cores

12 more cores

24 12
Higher turbo clock speed

Around 4 % higher specified turbo frequency

5.70 GHz 5.5 GHz

Specifications

Technical data

AMD Ryzen 9 9900X3D

Intel Core Ultra 9 285K

CPU family and group

Background information about the processors being compared, series, generation and market segment.

Family

Ryzen Intel Core Ultra 200
Form Factor

Desktops / Boxed Processor -
Segment

Desktop Desktop
Series

Ryzen 9000 Series -

CPU Technical specs

Core counts, threads, cache and clock modes describe the CPU configuration. Performance depends on the workload and comparable measured results.

Base Frequency

4.4 GHz 3.7 GHz
CPU Cores

12 24
CPU Threads

24 24
Max. Boost Clock

5.5 GHz -
Overclocking

Yes -
Turbo Frequency (1 Core)

5.5 GHz 5.7 GHz
E-core Base Clock

- 3.2 GHz
E-core Max Turbo

- 4.6 GHz
Efficient Cores

- 16
P-core Base Clock

- 3.7 GHz
P-core Max Turbo

- 5.5 GHz
Performance Cores

- 8

IGPU

Internal Graphics does not affect the performance of the CPU, performs the work of the graphics card in its absence or on mobile devices.

GPU Frequency

2200 MHz -
GPU name

AMD Radeon Graphics -
Graphics Cores

2 -

Memory specs & PCI

Types, channel quantity of RAM supported by Intel Core Ultra 9 285K and AMD Ryzen 9 9900X3D. Depending on the motherboards, higher or lower memory frequencies may be supported.

Memory channels

2 2
Memory type

DDR5 DDR5-6400
PCIe

PCIe 5.0 -
Max. Memory

- 256 GB

Thermal Management

Compare the TDP requirements of TDP AMD Ryzen 9 9900X3D and Intel Core Ultra 9 285K Power specifications describe different manufacturer limits. TDP, base power and maximum turbo power are separate values; they do not establish measured system consumption.

Default TDP

120 W -
Maximum Operating Temperature

95 °C -
TDP (PL1 / PBP, legacy combined label)

120 W 125 W
TDP (PL2)

- 250 W

Technologies and extensions

Architecture, interfaces, additional instructions supported by AMD Ryzen 9 9900X3D and Intel Core Ultra 9 285K, virtual machine technologies and process technology.

Architecture

Zen 5 Arrow Lake
Codename

Granite Ridge AM5 -
I/O die process

TSMC 6nm FinFET -
L2-Cache

12 MB 40 MB
L3-Cache

128 MB 36 MB
Release date

2025-03-12 Q4/2024
Socket

AM5 FCLGA1851
Technology

TSMC 4nm FinFET TSMC N3B
Intel Smart Cache

- 36 MB

Benchmarks

Performance tests CPUs

Shared tests with results for both models: 4

Blender Cycles

Each row uses one Blender version, operating system and compute backend.

Test and settings	AMD Ryzen 9 9900X3D	Intel Core Ultra 9 285K	Result difference¹
Blender 5.2.0 / CPU / Windows	550.350995 samples/min Submissions: 5	571.752688 samples/min Submissions: 74	+3.9 %
Blender 5.1.1 / CPU / Windows	539.359705 samples/min Submissions: 12	607.399504 samples/min Submissions: 41	+12.6 %
Blender 4.5.0 / CPU / Windows	466.652685 samples/min Submissions: 29	560.391684 samples/min Submissions: 256	+20.1 %
Blender 4.4.0 / CPU / Windows	471.815733 samples/min Submissions: 15	553.668977 samples/min Submissions: 108	+17.3 %

¹ Difference of the second result relative to the first in that row. No percentage is calculated for different upscaling algorithms. This compares published results, not a universal performance index.

Individual model tests

These results have no shared test of both models with the same version and settings. They are shown separately without a percentage difference.

AMD Ryzen 9 9900X3D

Intel Core Ultra 9 285K

Blender 4.2.0 / CPU / Windows 556.959569 samples/min
Blender 4.3.0 / CPU / Windows 542.577524 samples/min
Blender 4.5.0 / CPU / Linux 646.581739 samples/min
Blender 5.0.0 / CPU / Windows 504.599106 samples/min
Blender 5.1.0 / CPU / Windows 605.487015 samples/min
Blender 5.1.1 / CPU / Linux 672.717728 samples/min
Blender 5.2.0 / CPU / Linux 610.826915 samples/min

Results with primary test sources

Published measurements are separate from the archived index. Incomplete conditions and unknown run counts do not support ranking positions or calculated performance differences.

Model	Test	Result
Intel Core Ultra 9 285K	Cinebench R15 / multi-core	6588 points
Intel Core Ultra 9 285K	Cinebench R15 / single-core	356 points
Intel Core Ultra 9 285K	Cinebench R20 / multi-core	16722 points
Intel Core Ultra 9 285K	Cinebench R20 / single-core	902 points
Intel Core Ultra 9 285K	Cinebench R23 / multi-core	42705 points
Intel Core Ultra 9 285K	Cinebench R23 / single-core	2353 points

Individual system tests

Results were obtained on the reported systems. Test versions and settings remain separate; incomplete conditions do not support calculated model performance differences.

Cinebench 2026 / multiple threads

Model	Result	Reported conditions
Intel Core Ultra 9 285K	9189 points	System: 285K, RTX 5070 Ti, 128 GB CPU / power label: 285K, RTX 5070 Ti, 128 GB Source minimum runtime: 0 minutes. Exact test build and complete conditions are unreported; no ranking position.

Cinebench 2026 / single thread

Model	Result	Reported conditions
Intel Core Ultra 9 285K	556 points	System: 285K, RTX 5070 Ti, 128 GB CPU / power label: 285K, RTX 5070 Ti, 128 GB Source minimum runtime: 0 minutes. Exact test build and complete conditions are unreported; no ranking position.

RandomX / XMRig 6.22.2 / 10M / 24 threads / linux

Model	Result	Reported conditions
AMD Ryzen 9 9900X3D	17106.561906 H/s	RandomX / XMRig 6.22.2 / 10M / 24 threads / linux System RAM: 64 GB OS: Linux x86_64 Motherboard: Micro-Star International Co., Ltd. / X670E GAMING PLUS WIFI (MS-7E16) Duration: 584.571 s User-submitted run; tuning and power settings are incomplete.

RandomX / XMRig 6.22.2 / 1M / 24 threads / windows

Model	Result	Reported conditions
Intel Core Ultra 9 285K	13084.381174 H/s	RandomX / XMRig 6.22.2 / 1M / 24 threads / windows System RAM: 64 GB OS: Windows NT 10.0 Motherboard: ASUSTeK COMPUTER INC. / TUF GAMING B860-PLUS WIFI Duration: 76.427 s User-submitted run; tuning and power settings are incomplete.