Feex·CPU
Intel · Core Ultra 3 · Desktop

Intel® Core™ Ultra 3 205

The Intel Core Ultra 3 205 is a desktop processor released in 2026, built on the Arrow Lake architecture. It has 8 cores and 8 threads (4 performance cores plus 4 efficiency cores), a base clock of 3.80 GHz, a maximum boost of 4.90 GHz and 15 MB of L3 cache.

Cores
8
Threads
8
Boost Clock
4.9 GHz
Base Clock
3.8 GHz
Architecture
Arrow Lake
L3 Cache
15 MB
Multi-Core Performance
26,193
Single-Core Performance
4,579
Hybrid core layout
PPPPEEEE
4 Performance 4 Efficiency 8 Threads

Best for

High-FPS gaming & low-latency tasksDaily productivity & development

Overview

The Intel Core Ultra 3 205 is a desktop processor with a hybrid 8-core layout (4 performance cores + 4 efficiency cores) and 8 threads, built on the Arrow Lake architecture. It launched in 2026. Clocks run from 3.8 GHz base to 4.9 GHz boost. A 15-MB L3 cache backs the cores (4.0 MB per core).

Performance

Overall CPU Performance computed
10,952
44% of reference
Reference ceiling 25,000
Multi-Core Performance PassMark rating
26,193
22% of reference
Reference ceiling 120,000
Single-Core Performance PassMark rating
4,579
83% of reference
Reference ceiling 5,500
Productivity Performance computed
23,436
15% of reference
Reference ceiling 160,000
Creator Performance computed
22,648
16% of reference
Reference ceiling 140,000
Engineering Performance computed
26,848
13% of reference
Reference ceiling 200,000
Gaming Performance computed
20,285
92% of reference
Reference ceiling 22,000
Performance per Core computed
3,274
16% of reference
Reference ceiling 21,053
Performance per Thread computed
3,274
31% of reference
Reference ceiling 10,527
Performance index computed
136
Intel Core i5-12400 = 100

The Intel Core Ultra 3 205 scores 4,579 in single-core performance and 26,193 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 10,952 for overall performance, 23,436 for productivity performance, 22,648 for creator performance, 26,848 for engineering performance and 20,285 for gaming performance. Its multi-core throughput works out to 3,274 per core and 3,274 per thread. Its performance index is 136, so its overall performance is 36% above the Intel Core i5-12400 (index 100). Each bar shows the score as a share of a reference ceiling, which is the larger of the 99th-percentile score across the Feex CPU database and a fixed baseline.

How these scores are computed

Single-core and multi-core performance are PassMark CPU Mark single-thread and multi-thread ratings. Every other figure on this page's performance section is computed by Feex from those two ratings plus core count, thread count and TDP, so it is a derived value and not a separate benchmark run.

  • Overall performance is the geometric mean of the two ratings: the square root of single-core times multi-core.
  • Productivity performance is 0.65 times multi-core plus 1.4 times single-core.
  • Creator performance is 0.55 times multi-core plus 1.8 times single-core.
  • Engineering performance is multi-core times the smaller of 1.4 and (0.9 plus cores divided by 64).
  • Gaming performance is 3 times single-core plus 0.25 times multi-core.
  • Performance per core, per thread and per watt divide the multi-core rating by physical cores, logical threads and TDP in watts.
  • The efficiency index is the square root of single-core times multi-core, divided by the square root of TDP.
  • The performance index is overall performance divided by the overall performance of the Intel Core i5-12400 (8,069), times 100.

Workload Benchmarks

Scores for individual PassMark CPU Mark test categories. Higher is better. These are measured test scores, not computed from the single-core and multi-core ratings.

Integer Math Throughput
54,707
9% of reference
Reference ceiling 617,811
7% below the Intel Core i5-12400 (58,893)
Raw integer arithmetic throughput across cores.
Floating-Point Math
74,985
12% of reference
Reference ceiling 600,000
63% above the Intel Core i5-12400 (45,899)
Heavy floating-point math, mixed precision.
Compression Performance
260,193
11% of reference
Reference ceiling 2,309,868
14% above the Intel Core i5-12400 (228,054)
Throughput on lossless compression workloads.
Cryptography Performance
18,760
14% of reference
Reference ceiling 137,106
63% above the Intel Core i5-12400 (11,489)
Symmetric encryption and hashing throughput.
Physics Simulation
1,954
16% of reference
Reference ceiling 12,291
79% above the Intel Core i5-12400 (1,090)
Iterative physics & rigid-body simulation.
Vector / SIMD Throughput
22,428
13% of reference
Reference ceiling 172,975
45% above the Intel Core i5-12400 (15,509)
Wide-vector SIMD intrinsics performance.
Prime Sieve
270
25% of reference
Reference ceiling 1,067
303% above the Intel Core i5-12400 (67)
Searching for prime numbers (branch-heavy work).
Sort Performance
31,047
12% of reference
Reference ceiling 260,323
37% above the Intel Core i5-12400 (22,652)
Random string sorting throughput.

In the individual workload tests the Intel Core Ultra 3 205 scores 54,707 in integer math, 74,985 in floating-point math, 260,193 in compression, 18,760 in cryptography, 1,954 in physics simulation, 22,428 in vector SIMD, 270 in the prime sieve and 31,047 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 7% below in integer math, 63% above in floating-point math, 14% above in compression, 63% above in cryptography, 79% above in physics simulation, 45% above in vector SIMD, 303% above in the prime sieve and 37% above in sorting. Each bar shows the score as a share of that workload's reference ceiling, the larger of the 99th-percentile score across CPUs with a recorded value and a fixed baseline.

Core Configuration

Cores
8
Threads
8
Performance Cores
4
Efficiency Cores
4
Threads per Core
1
Hybrid Architecture
Yes
Base Clock
3.8 GHz
Boost Clock
4.9 GHz

The Intel Core Ultra 3 205 has 8 physical cores and runs 8 logical threads. It uses a hybrid layout of 4 performance cores and 4 efficiency cores. It does not support simultaneous multithreading, so its thread count equals its core count. It runs at a base clock of 3.80 GHz and boosts up to 4.90 GHz.

Architecture & Generation

Manufacturer
Intel
Family
Core Ultra 3
Segment
Desktop
Generation
Not recorded
Architecture
Arrow Lake
Process Node
Not recorded
Lithography
Not recorded
Release Date
2026
Release quarter
Q1 2026

The Intel Core Ultra 3 205 is a desktop processor, belongs to the Intel Core Ultra 3 family and uses the Arrow Lake architecture. It launched in 2026.

Cache

L1 Cache (Total)
832 KB
L2 Cache (Total)
16 MB
L3 Cache
15 MB
Cache per Core
4 MB
Total Cache
31.8 MB

The Intel Core Ultra 3 205 has 832 KB of L1 cache, 16 MB of L2 cache and 15 MB of L3 cache. That adds up to about 31.8 MB of cache, or 3.98 MB per core.

Cache Hierarchy

L1L2L3
L1 832 KBL2 16 MBL3 15 MB

The Intel Core Ultra 3 205 has a 3-level cache hierarchy: L1 at 832 KB, L2 at 16 MB and L3 at 15 MB. L2 is the largest level and makes up about 50% of the cache listed here.

Platform Capabilities

Instruction sets, security, virtualization, AI acceleration and OS readiness. Features are listed as supported, explicitly not supported, or not recorded; a feature that is not recorded is not the same as unsupported.

Instruction Sets

0 supported
Not recorded
AES-NIAMXAVX-512AVX2AVXAVX-VNNI

Security and Reliability

0 supported
Not recorded
AES-NIControl-flow Enforcement (CET)Execute Disable (NX)Boot GuardHardware RNGHardware Shield

Virtualization

0 supported
Not recorded
Extended Page Tables (EPT)VT-d (DMA Remapping)VT-x (Hardware Virtualization)VT-x with EPTIOMMUSecond-Level Address Translation

OS Compatibility

1 supported
Supported
Windows 11 eligible

Feex has no record for AES-NI, AMX, AVX-512, AVX2, AVX and AVX-VNNI, which is different from being unsupported.

Feex has no record for AES-NI, Control-flow Enforcement (CET), Execute Disable (NX), Boot Guard, Hardware RNG and Hardware Shield, which is different from being unsupported.

Feex has no record for Extended Page Tables (EPT), VT-d (DMA Remapping), VT-x (Hardware Virtualization), VT-x with EPT, IOMMU and Second-Level Address Translation, which is different from being unsupported.

Feex records the Intel Core Ultra 3 205 as Windows 11 eligible.

Naming & Aliases

Display Name
Intel® Core™ Ultra 3 205
Normalized Name
Intel® Core™ Ultra 3 205
Product line brand
Core Ultra

Real-world compute in the Feex fleet

No Feex fleet machines with the Intel Core Ultra 3 205 have reported compute telemetry yet, so real-world compute for this processor is not recorded.

How fleet compute is measured · Fleet compute leaderboard · JSON

Data Coverage

Feex has recorded 37% of the specifications it tracks for the Intel Core Ultra 3 205. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: All-Core Boost and Unlocked Multiplier. Architecture & Generation: Codename, ISA Family and Market Status. Cache: L2 Cache (per Core) and L4 Cache. Memory Support: Max Memory, Memory Channels, Memory Bandwidth, Memory Types, DDR5 Support, DDR4 Support, LPDDR Support, ECC Memory and Max Memory Speed. Graphics: Integrated Graphics, Graphics Model, Graphics Base Clock, Graphics Max Clock, Execution Units, Display Outputs and Max Video Memory. Platform & Compatibility: Socket, Package, Package Size, PCIe Generation and PCIe Lanes. Power & Thermals: TDP, Base Power, Maximum Turbo Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size, Die Count, Foundry and Launch Price. Naming & Aliases: SKU, Model Number, Processor Number and Part Number.

Common questions

How many cores and threads does the Intel Core Ultra 3 205 have?

The Intel Core Ultra 3 205 has 8 cores and 8 threads.

What architecture does the Intel Core Ultra 3 205 use?

The Intel Core Ultra 3 205 is built on the Arrow Lake architecture.

How fast does the Intel Core Ultra 3 205 run?

The Intel Core Ultra 3 205 can boost up to 4.9 GHz, with a 3.8 GHz base clock.

How does the Intel Core Ultra 3 205 perform?

In the Feex normalized performance dataset, the Intel Core Ultra 3 205 scores 26,193 multi-core and 4,579 single-core.

What is the Intel Core Ultra 3 205 best for?

Based on its specifications, the Intel Core Ultra 3 205 is well suited for High-FPS gaming & low-latency tasks, Daily productivity & development.

How much cache does the Intel Core Ultra 3 205 have?

The Intel Core Ultra 3 205 has 832 KB of L1 cache, 16384 KB of L2 cache and 15 MB of L3 cache.

How does the Intel Core Ultra 3 205 compare with the Intel Core i5-12400?

The Intel Core Ultra 3 205 has a computed performance index of 136, which is 36% above the Intel Core i5-12400 (index 100). The index is derived from the single-core and multi-core ratings.