Core Ultra 7 265K vs Ryzen 5 8400F

Intel

Core Ultra 7 265K

20 Cores20 Thrd125 WWMax: 5.5 GHz2024

Popular choices:

VS
AMD

Ryzen 5 8400F

6 Cores12 Thrd65 WWMax: 4.7 GHz2024

Popular choices:

Performance Spectrum - CPU

About PassMark

PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

Core Ultra 7 265K

2024

Why buy it

  • Better for gaming: +19.8% higher average FPS across 50 shared CPU benchmark tests.
  • +87.5% larger total L3 cache (30 MB vs 16 MB).
  • Delivers 134.8% more PassMark for each dollar spent, at 190.3 vs 81.0 PassMark/$ ($309 MSRP vs $303 MSRP).
  • 100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.
  • Integrated graphics onboard with Arc Graphics 64EU, while Ryzen 5 8400F needs a discrete GPU.

Trade-offs

  • 2% HIGHER MSRP
    $309 MSRPvs$303 MSRP
  • 92.3% higher power demand at 125W vs 65W.

Ryzen 5 8400F

2024

Why buy it

  • Costs $6 less on MSRP ($303 MSRP vs $309 MSRP).
  • Draws 65W instead of 125W, a 60W reduction.

Trade-offs

  • Worse for gaming: lower average FPS than Core Ultra 7 265K across 50 shared CPU benchmark tests.
  • Lower PassMark (24,554 vs 58,789).
  • Smaller total L3 cache (16 MB vs 30 MB).
  • Lower PassMark per dollar, at 81.0 vs 190.3 PassMark/$ ($303 MSRP vs $309 MSRP).
  • No integrated graphics, while Core Ultra 7 265K can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core Ultra 7 265K better than Ryzen 5 8400F?
Yes. Core Ultra 7 265K is the better overall CPU here. You are getting a 19.8% average FPS lead across 50 shared CPU game tests in our data, 139.4% better PassMark, and the stronger long-term platform, which makes it the stronger all-around choice.
Which one is better for gaming?
If gaming is the priority, Core Ultra 7 265K is the better pick here. According to our tests, it delivers 19.8% more average FPS across 50 shared CPU game tests.
Which one is better for streaming, content creation, and heavy multitasking?
For streaming, content creation, and heavier multitasking, Core Ultra 7 265K is the better fit. You are getting 139.4% better PassMark, backed by 20 cores and 20 threads. It also carries the larger cache pool with 87.5% larger total L3 cache (30 MB vs 16 MB).
Which one is the smarter buy today, not just the cheaper CPU?
Core Ultra 7 265K is the smarter buy today. Core Ultra 7 265K is 2.0% more expensive on MSRP at $309 MSRP versus $303 MSRP, and it gives you a 19.8% average FPS lead across 50 shared CPU game tests in our data. It is also 134.8% better value on MSRP (190.3 vs 81.0 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper. That said, if you already own a compatible AM5 + DDR5 setup, Ryzen 5 8400F can still make sense as a platform-matched option because it avoids a motherboard and RAM swap.
Which one is more future-proof for 2026 and beyond?
Core Ultra 7 265K is the more future-proof choice for 2026 and beyond. You are getting 87.5% larger total L3 cache (30 MB vs 16 MB) and more multi-core headroom with 20 cores / 20 threads instead of 6/12. That extra compute headroom should age better as games, background tasks, and creator workloads get heavier.

Games Benchmarks

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

Path of Exile 2

Path of Exile 2

PresetCore Ultra 7 265KRyzen 5 8400F
1080p
low305 FPS178 FPS
medium290 FPS151 FPS
high244 FPS123 FPS
ultra205 FPS102 FPS
1440p
low240 FPS151 FPS
medium201 FPS124 FPS
high163 FPS101 FPS
ultra142 FPS84 FPS
4K
low158 FPS81 FPS
medium132 FPS72 FPS
high102 FPS58 FPS
ultra89 FPS45 FPS
Counter-Strike 2

Counter-Strike 2

PresetCore Ultra 7 265KRyzen 5 8400F
1080p
low778 FPS374 FPS
medium656 FPS316 FPS
high548 FPS278 FPS
ultra491 FPS238 FPS
1440p
low673 FPS326 FPS
medium595 FPS282 FPS
high499 FPS255 FPS
ultra422 FPS214 FPS
4K
low395 FPS243 FPS
medium357 FPS215 FPS
high335 FPS198 FPS
ultra292 FPS165 FPS
League of Legends

League of Legends

PresetCore Ultra 7 265KRyzen 5 8400F
1080p
low851 FPS614 FPS
medium694 FPS614 FPS
high617 FPS614 FPS
ultra528 FPS614 FPS
1440p
low731 FPS614 FPS
medium599 FPS603 FPS
high521 FPS522 FPS
ultra442 FPS446 FPS
4K
low517 FPS492 FPS
medium436 FPS431 FPS
high396 FPS369 FPS
ultra337 FPS303 FPS
Valorant

Valorant

PresetCore Ultra 7 265KRyzen 5 8400F
1080p
low1128 FPS614 FPS
medium1015 FPS614 FPS
high889 FPS614 FPS
ultra808 FPS614 FPS
1440p
low892 FPS614 FPS
medium789 FPS614 FPS
high687 FPS614 FPS
ultra611 FPS601 FPS
4K
low604 FPS610 FPS
medium542 FPS548 FPS
high489 FPS490 FPS
ultra432 FPS426 FPS

Technical Specifications

Side-by-side comparison of Core Ultra 7 265K and Ryzen 5 8400F

Intel

Core Ultra 7 265K

The Core Ultra 7 265K is manufactured by Intel. It was released in 24 October 2024 (1 year ago). It is based on the Arrow Lake-S (2024−2025) architecture. It features 20 cores and 20 threads. Base frequency is 3.9 GHz, with boost up to 5.5 GHz. L3 cache: 30 MB (total). L2 cache: 3 MB (per core). Built on 3 nm process technology. Socket: LGA1851. Thermal design power (TDP): 125 Watt. Memory support: DDR5-6400. Passmark benchmark score: 58,789 points. Launch price was $394.

AMD

Ryzen 5 8400F

The Ryzen 5 8400F is manufactured by AMD. It was released in 1 April 2024 (1 year ago). It is based on the Phoenix (2023−2024) architecture. It features 6 cores and 12 threads. Base frequency is 4.2 GHz, with boost up to 4.7 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: AM5. Thermal design power (TDP): 65 Watt. Memory support: DDR5. Passmark benchmark score: 24,554 points. Launch price was $170.

Processing Power

The Core Ultra 7 265K packs 20 cores / 20 threads, while the Ryzen 5 8400F offers 6 cores / 12 threads — the Core Ultra 7 265K has 14 more cores. Boost clocks reach 5.5 GHz on the Core Ultra 7 265K versus 4.7 GHz on the Ryzen 5 8400F — a 15.7% clock advantage for the Core Ultra 7 265K (base: 3.9 GHz vs 4.2 GHz). The Core Ultra 7 265K uses the Arrow Lake-S (2024−2025) architecture (3 nm), while the Ryzen 5 8400F uses Phoenix (2023−2024) (4 nm). In PassMark, the Core Ultra 7 265K scores 58,789 against the Ryzen 5 8400F's 24,554 — a 82.2% lead for the Core Ultra 7 265K. L3 cache: 30 MB (total) on the Core Ultra 7 265K vs 16 MB (total) on the Ryzen 5 8400F.

FeatureCore Ultra 7 265KRyzen 5 8400F
Cores / Threads
20 / 20+233%
6 / 12
Boost Clock
5.5 GHz+17%
4.7 GHz
Base Clock
3.9 GHz
4.2 GHz+8%
L3 Cache
30 MB (total)+88%
16 MB (total)
L2 Cache
3 MB (per core)+200%
1 MB (per core)
Process
3 nm-25%
4 nm
Architecture
Arrow Lake-S (2024−2025)
Phoenix (2023−2024)
PassMark
58,789+139%
24,554
Cinebench R23 Multi
36,309
Geekbench 6 Single
3,283
Geekbench 6 Multi
22,293
🧠

Memory & Platform

The Core Ultra 7 265K uses the LGA1851 socket (PCIe 5.0), while the Ryzen 5 8400F uses AM5 (PCIe 4.0) — making them incompatible on the same motherboard.

FeatureCore Ultra 7 265KRyzen 5 8400F
Socket
LGA1851
AM5
PCIe Generation
PCIe 5.0+25%
PCIe 4.0
Max RAM Speed
DDR5-6400
Max RAM Capacity
256 GB
RAM Channels
2
ECC Support
Yes
PCIe Lanes
20
🔧

Advanced Features

Virtualization: VT-x, VT-d (Core Ultra 7 265K) / not specified (Ryzen 5 8400F). The Core Ultra 7 265K includes integrated graphics (Arc Graphics 64EU), while the Ryzen 5 8400F requires a dedicated GPU.

FeatureCore Ultra 7 265KRyzen 5 8400F
Integrated GPU
Yes
IGPU Model
Arc Graphics 64EU
Unlocked
Yes
AVX-512
Yes
Virtualization
VT-x, VT-d
💰

Value Analysis

The Core Ultra 7 265K launched at $309 MSRP, while the Ryzen 5 8400F debuted at $303. On MSRP ($309 vs $303), the Ryzen 5 8400F is $6 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core Ultra 7 265K delivers 190.3 pts/$ vs 81.0 pts/$ for the Ryzen 5 8400F — making the Core Ultra 7 265K the 80.5% better value option.

FeatureCore Ultra 7 265KRyzen 5 8400F
MSRP
$309
$303-2%
Performance per Dollar
190.3+135%
81.0
Release Date
2024
2024