Feex·CPU
Intel · Core Ultra 7 · Desktop

Intel® Core™ Ultra 7 265KF

The Intel Core Ultra 7 265KF is a desktop processor released on October 1, 2024, built on the Arrow Lake architecture using a 3 nm process. It has 20 cores and 20 threads (8 performance cores plus 12 efficiency cores), a base clock of 3.90 GHz, a maximum boost of 5.50 GHz, 30 MB of L3 cache, a 125 W TDP and the FCLGA1851 socket.

IntelCore Ultra 7DesktopFCLGA1851Arrow LakeTDP 125 WCompute Tile 's N3B2024
Cores
20
Threads
20
Boost Clock
5.5 GHz
Base Clock
3.9 GHz
Architecture
Arrow Lake
Socket
FCLGA1851
Process Node
Compute Tile 's N3B
TDP
125 W
Hybrid core layout
PPPPPPPPEEEEEEEEEEEE
8 Performance 12 Efficiency 20 Threads
Notable capabilities:Gaussian Neural AcceleratorExtended Page Tables (EPT)Control-flow Enforcement (CET)

Best for

Workstation & rendering workloadsHigh-FPS gaming & low-latency tasks

Overview

The Intel Core Ultra 7 265KF is a desktop processor with a hybrid 20-core layout (8 performance cores + 12 efficiency cores) and 20 threads, built on the Arrow Lake architecture (Compute Tile 's N3B process). It launched in Oct 2024. Clocks run from 3.9 GHz base to 5.5 GHz boost. A 30-MB L3 cache backs the cores (3.4 MB per core). It addresses DDR5 memory up to 256 GB across 2 channels. The chip drops into the FCLGA1851 socket and exposes PCIe 5.0 (24 lanes). Rated TDP is 125 W. Notable platform capabilities: Gaussian Neural Accelerator, Extended Page Tables (EPT), Control-flow Enforcement (CET).

Performance

Overall CPU Performance computed
16,986
68% of reference
Reference ceiling 25,000
Multi-Core Performance PassMark rating
58,570
49% of reference
Reference ceiling 120,000
Single-Core Performance PassMark rating
4,926
90% of reference
Reference ceiling 5,500
Productivity Performance computed
44,967
28% of reference
Reference ceiling 160,000
Creator Performance computed
41,080
29% of reference
Reference ceiling 140,000
Engineering Performance computed
71,016
36% of reference
Reference ceiling 200,000
Gaming Performance computed
29,421
100% of reference
Reference ceiling 22,000
Performance per Core computed
2,929
14% of reference
Reference ceiling 21,053
Performance per Thread computed
2,929
28% of reference
Reference ceiling 10,527
Performance per Watt computed
469
23% of reference
Reference ceiling 2,000
Efficiency Index computed
1,519
38% of reference
Reference ceiling 4,000
Performance index computed
211
Intel Core i5-12400 = 100

The Intel Core Ultra 7 265KF scores 4,926 in single-core performance and 58,570 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 16,986 for overall performance, 44,967 for productivity performance, 41,080 for creator performance, 71,016 for engineering performance and 29,421 for gaming performance. Its multi-core throughput works out to 2,929 per core, 2,929 per thread and 469 per watt. Its computed efficiency index is 1,519. Its performance index is 211, so its overall performance is 111% 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
143,366
23% of reference
Reference ceiling 617,811
143% above the Intel Core i5-12400 (58,893)
Raw integer arithmetic throughput across cores.
Floating-Point Math
189,452
32% of reference
Reference ceiling 600,000
313% above the Intel Core i5-12400 (45,899)
Heavy floating-point math, mixed precision.
Compression Performance
666,728
29% of reference
Reference ceiling 2,309,868
192% above the Intel Core i5-12400 (228,054)
Throughput on lossless compression workloads.
Cryptography Performance
48,206
35% of reference
Reference ceiling 137,106
320% above the Intel Core i5-12400 (11,489)
Symmetric encryption and hashing throughput.
Physics Simulation
3,638
30% of reference
Reference ceiling 12,291
234% above the Intel Core i5-12400 (1,090)
Iterative physics & rigid-body simulation.
Vector / SIMD Throughput
54,526
32% of reference
Reference ceiling 172,975
252% above the Intel Core i5-12400 (15,509)
Wide-vector SIMD intrinsics performance.
Prime Sieve
487
46% of reference
Reference ceiling 1,067
627% above the Intel Core i5-12400 (67)
Searching for prime numbers (branch-heavy work).
Sort Performance
79,759
31% of reference
Reference ceiling 260,323
252% above the Intel Core i5-12400 (22,652)
Random string sorting throughput.

In the individual workload tests the Intel Core Ultra 7 265KF scores 143,366 in integer math, 189,452 in floating-point math, 666,728 in compression, 48,206 in cryptography, 3,638 in physics simulation, 54,526 in vector SIMD, 487 in the prime sieve and 79,759 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 143% above in integer math, 313% above in floating-point math, 192% above in compression, 320% above in cryptography, 234% above in physics simulation, 252% above in vector SIMD, 627% above in the prime sieve and 252% 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
20
Threads
20
Performance Cores
8
Efficiency Cores
12
Threads per Core
1
Hybrid Architecture
Yes
Base Clock
3.9 GHz
Boost Clock
5.5 GHz

The Intel Core Ultra 7 265KF has 20 physical cores and runs 20 logical threads. It uses a hybrid layout of 8 performance cores and 12 efficiency cores. It does not support simultaneous multithreading, so its thread count equals its core count. It runs at a base clock of 3.90 GHz and boosts up to 5.50 GHz.

Architecture & Generation

Manufacturer
Intel
Family
Core Ultra 7
Segment
Desktop
Generation
Intel Core Ultra Processors (Series 2)
Architecture
Arrow Lake
Codename
Arrow Lake
Process Node
Compute Tile 's N3B
Lithography
3 nm
Release Date
Oct 2024

The Intel Core Ultra 7 265KF is a desktop processor, belongs to the Intel Core Ultra 7 family, uses the Arrow Lake architecture, carries the codename Arrow Lake and is manufactured on a Compute Tile 's N3B process. It launched in Oct 2024.

Cache

L1 Cache (Total)
2 MB
L2 Cache (Total)
36 MB
L3 Cache
30 MB
Cache per Core
3.4 MB
Total Cache
68 MB

The Intel Core Ultra 7 265KF has 2 MB of L1 cache, 36 MB of L2 cache and 30 MB of L3 cache. That adds up to about 68.0 MB of cache, or 3.40 MB per core.

Cache Hierarchy

L1L2L3
L1 2 MBL2 36 MBL3 30 MB

The Intel Core Ultra 7 265KF has a 3-level cache hierarchy: L1 at 2 MB, L2 at 36 MB and L3 at 30 MB. L2 is the largest level and makes up about 53% of the cache listed here.

Memory Support

Max Memory
256 GB
Memory Channels
2
Memory Types
DDR5
DDR5 Support
Yes
DDR4 Support
No
LPDDR Support
No
ECC Memory
No

The Intel Core Ultra 7 265KF supports DDR5 memory, addresses up to 256 GB of memory and uses 2 memory channels. It does not support DDR4 and LPDDR memory. It does not support ECC memory.

Graphics

Integrated Graphics
No

The Intel Core Ultra 7 265KF does not include integrated graphics, so a discrete graphics card is required for display output.

Platform & Compatibility

Socket
FCLGA1851
PCIe Generation
5.0
PCIe Lanes
24

The Intel Core Ultra 7 265KF uses the FCLGA1851 socket, supports PCI Express 5.0 and provides up to 24 PCIe lanes.

Power & Thermals

TDP
125 W

The Intel Core Ultra 7 265KF has a rated TDP of 125 W.

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

13 supported
Supported
AES-NIAVX2AVXCETFMA64-bit (x86-64)SSE4.1SSE4.2SSESSE2SSE3SSSE3MMX
Not recorded
AMXAVX-512AVX-VNNICET-IBTCET-SSFMA3

Security and Reliability

5 supported
Supported
Control-flow Enforcement (CET)Boot GuardHardware RNGOS GuardMode-Based Execute Control
Not recorded
AES-NIExecute Disable (NX)Hardware ShieldOS Guard (SMAP)SGXSMAP

Virtualization

3 supported
Supported
Extended Page Tables (EPT)VT-d (DMA Remapping)VT-x (Hardware Virtualization)
Not recorded
VT-x with EPTIOMMUSecond-Level Address TranslationUnrestricted Guest

AI Acceleration

1 supported
Supported
Gaussian Neural Accelerator

OS Compatibility

1 supported
Supported
Windows 11 eligible

The Intel Core Ultra 7 265KF supports AES-NI, AVX2, AVX, CET, FMA, 64-bit (x86-64), SSE4.1, SSE4.2, SSE, SSE2, SSE3, SSSE3 and MMX among its instruction set features. Feex has no record for AMX, AVX-512, AVX-VNNI, CET-IBT, CET-SS and FMA3, which is different from being unsupported.

The Intel Core Ultra 7 265KF supports Control-flow Enforcement (CET), Boot Guard, Hardware RNG, OS Guard and Mode-Based Execute Control among its security features. Feex has no record for AES-NI, Execute Disable (NX), Hardware Shield, OS Guard (SMAP), SGX and SMAP, which is different from being unsupported.

The Intel Core Ultra 7 265KF supports Extended Page Tables (EPT), VT-d (DMA Remapping) and VT-x (Hardware Virtualization) among its virtualization features. Feex has no record for VT-x with EPT, IOMMU, Second-Level Address Translation and Unrestricted Guest, which is different from being unsupported.

The Intel Core Ultra 7 265KF supports Gaussian Neural Accelerator among its AI acceleration features.

Feex records the Intel Core Ultra 7 265KF as Windows 11 eligible.

Physical & Manufacturing

Foundry
TSMC
Launch Price
$379

The Intel Core Ultra 7 265KF is manufactured by TSMC. It launched at a price of $379.

Naming & Aliases

Display Name
Intel® Core™ Ultra 7 265KF
Normalized Name
Intel® Core™ Ultra 7 265KF
Model Number
265KF
Processor Number
265KF
Product line brand
Core Ultra

The Intel Core Ultra 7 265KF is also identified by the model number 265KF and the processor number 265KF.

Real-world compute in the Feex fleet

No Feex fleet machines with the Intel Core Ultra 7 265KF 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 64% of the specifications it tracks for the Intel Core Ultra 7 265KF. 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: ISA Family and Market Status. Cache: L2 Cache (per Core) and L4 Cache. Memory Support: Memory Bandwidth and Max Memory Speed. Platform & Compatibility: Package and Package Size. Power & Thermals: Base Power, Maximum Turbo Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size and Die Count. Naming & Aliases: SKU and Part Number.

Common questions

How many cores and threads does the Intel Core Ultra 7 265KF have?

The Intel Core Ultra 7 265KF has 20 cores and 20 threads.

What architecture does the Intel Core Ultra 7 265KF use?

The Intel Core Ultra 7 265KF is built on the Arrow Lake architecture on a Compute Tile 's N3B process.

Does the Intel Core Ultra 7 265KF have integrated graphics?

No. The Intel Core Ultra 7 265KF does not include integrated graphics.

What socket does the Intel Core Ultra 7 265KF use?

The Intel Core Ultra 7 265KF uses the FCLGA1851 socket.

What memory does the Intel Core Ultra 7 265KF support?

The Intel Core Ultra 7 265KF supports DDR5 up to 256 GB across 2 channels.

How fast does the Intel Core Ultra 7 265KF run?

The Intel Core Ultra 7 265KF can boost up to 5.5 GHz, with a 3.9 GHz base clock.

What is the TDP of the Intel Core Ultra 7 265KF?

The Intel Core Ultra 7 265KF has a TDP of 125 W.

How does the Intel Core Ultra 7 265KF perform?

In the Feex normalized performance dataset, the Intel Core Ultra 7 265KF scores 58,570 multi-core and 4,926 single-core.

What advanced capabilities does the Intel Core Ultra 7 265KF support?

Notable platform capabilities reported for the Intel Core Ultra 7 265KF include Gaussian Neural Accelerator, Extended Page Tables (EPT), Control-flow Enforcement (CET).

What is the Intel Core Ultra 7 265KF best for?

Based on its specifications, the Intel Core Ultra 7 265KF is well suited for Workstation & rendering workloads, High-FPS gaming & low-latency tasks.

How much cache does the Intel Core Ultra 7 265KF have?

The Intel Core Ultra 7 265KF has 2048 KB of L1 cache, 36864 KB of L2 cache and 30 MB of L3 cache.

How does the Intel Core Ultra 7 265KF compare with the Intel Core i5-12400?

The Intel Core Ultra 7 265KF has a computed performance index of 211, which is 111% above the Intel Core i5-12400 (index 100). The index is derived from the single-core and multi-core ratings.