Feex·CPU
Intel · Core Ultra 3 · Desktop

Intel® Core™ Ultra 3 205T

The Intel Core Ultra 3 205T is a desktop processor released in 2026, built on the Arrow Lake architecture. It has 8 cores and 8 threads and 15 MB of L3 cache.

Cores
8
Threads
8
Architecture
Arrow Lake
L3 Cache
15 MB
Multi-Core Performance
23,436
Single-Core Performance
4,432
Core layout
PPPPPPPP
8 Performance 8 Threads

Best for

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

Overview

The Intel Core Ultra 3 205T is a desktop processor with 8 cores and 8 threads, built on the Arrow Lake architecture. It launched in 2026. A 15-MB L3 cache backs the cores (4.0 MB per core).

Performance

Overall CPU Performance computed
10,192
41% of reference
Reference ceiling 25,000
Multi-Core Performance PassMark rating
23,436
20% of reference
Reference ceiling 120,000
Single-Core Performance PassMark rating
4,432
81% of reference
Reference ceiling 5,500
Productivity Performance computed
21,438
13% of reference
Reference ceiling 160,000
Creator Performance computed
20,867
15% of reference
Reference ceiling 140,000
Engineering Performance computed
24,022
12% of reference
Reference ceiling 200,000
Gaming Performance computed
19,155
87% of reference
Reference ceiling 22,000
Performance per Core computed
2,930
14% of reference
Reference ceiling 21,053
Performance per Thread computed
2,930
28% of reference
Reference ceiling 10,527
Performance index computed
126
Intel Core i5-12400 = 100

The Intel Core Ultra 3 205T scores 4,432 in single-core performance and 23,436 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 10,192 for overall performance, 21,438 for productivity performance, 20,867 for creator performance, 24,022 for engineering performance and 19,155 for gaming performance. Its multi-core throughput works out to 2,930 per core and 2,930 per thread. Its performance index is 126, so its overall performance is 26% 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
53,831
9% of reference
Reference ceiling 617,811
9% below the Intel Core i5-12400 (58,893)
Raw integer arithmetic throughput across cores.
Floating-Point Math
74,007
12% of reference
Reference ceiling 600,000
61% above the Intel Core i5-12400 (45,899)
Heavy floating-point math, mixed precision.
Compression Performance
217,271
9% of reference
Reference ceiling 2,309,868
5% below the Intel Core i5-12400 (228,054)
Throughput on lossless compression workloads.
Cryptography Performance
16,931
12% of reference
Reference ceiling 137,106
47% above the Intel Core i5-12400 (11,489)
Symmetric encryption and hashing throughput.
Physics Simulation
1,822
15% of reference
Reference ceiling 12,291
67% above the Intel Core i5-12400 (1,090)
Iterative physics & rigid-body simulation.
Vector / SIMD Throughput
17,923
10% of reference
Reference ceiling 172,975
16% above the Intel Core i5-12400 (15,509)
Wide-vector SIMD intrinsics performance.
Prime Sieve
248
23% of reference
Reference ceiling 1,067
270% above the Intel Core i5-12400 (67)
Searching for prime numbers (branch-heavy work).
Sort Performance
26,310
10% of reference
Reference ceiling 260,323
16% above the Intel Core i5-12400 (22,652)
Random string sorting throughput.

In the individual workload tests the Intel Core Ultra 3 205T scores 53,831 in integer math, 74,007 in floating-point math, 217,271 in compression, 16,931 in cryptography, 1,822 in physics simulation, 17,923 in vector SIMD, 248 in the prime sieve and 26,310 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 9% below in integer math, 61% above in floating-point math, 5% below in compression, 47% above in cryptography, 67% above in physics simulation, 16% above in vector SIMD, 270% above in the prime sieve and 16% 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
Threads per Core
1
Base Clock
Not recorded
Boost Clock
Not recorded

The Intel Core Ultra 3 205T has 8 physical cores and runs 8 logical threads. It does not support simultaneous multithreading, so its thread count equals its core count.

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 205T 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 205T 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 205T 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 205T as Windows 11 eligible.

Naming & Aliases

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

Real-world compute in the Feex fleet

No Feex fleet machines with the Intel Core Ultra 3 205T 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 31% of the specifications it tracks for the Intel Core Ultra 3 205T. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Performance Cores, Efficiency Cores, Hybrid Architecture, 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 205T have?

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

What architecture does the Intel Core Ultra 3 205T use?

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

How does the Intel Core Ultra 3 205T perform?

In the Feex normalized performance dataset, the Intel Core Ultra 3 205T scores 23,436 multi-core and 4,432 single-core.

What is the Intel Core Ultra 3 205T best for?

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

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

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

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

The Intel Core Ultra 3 205T has a computed performance index of 126, which is 26% above the Intel Core i5-12400 (index 100). The index is derived from the single-core and multi-core ratings.