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 i5-12400F

2022

Why buy it

✅Costs $895 less on MSRP ($174 MSRP vs $1,069 MSRP).
✅Delivers 151.9% more PassMark for each dollar spent, at 112.3 vs 44.6 PassMark/$ ($174 MSRP vs $1,069 MSRP).
✅Draws 65W instead of 252W, a 187W reduction.
✅Includes a boxed cooler (Yes), unlike Xeon w5-2555X.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon w5-2555X across 18 shared CPU benchmark tests.
❌Lower PassMark (19,532 vs 47,638).
❌Smaller total L3 cache (18 MB vs 34 MB).
❌Less compelling for workstation-style loads than Xeon w5-2555X, which brings 14 cores / 28 threads and 112 PCIe lanes.

Xeon w5-2555X

2024

Why buy it

✅Better for gaming: +34.3% higher average FPS across 18 shared CPU benchmark tests.
✅+87.5% larger total L3 cache (34 MB vs 18 MB).
✅Better for workstations and heavier parallel workloads: 14 cores / 28 threads, plus 112 PCIe lanes vs 20.
✅460% more PCIe lanes (112 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark per dollar, at 44.6 vs 112.3 PassMark/$ ($1,069 MSRP vs $174 MSRP).
❌287.7% higher power demand at 252W vs 65W.
❌No boxed cooler included, unlike Core i5-12400F.

Core i5-12400F

2022

Xeon w5-2555X

2024

Why buy it

✅Costs $895 less on MSRP ($174 MSRP vs $1,069 MSRP).
✅Delivers 151.9% more PassMark for each dollar spent, at 112.3 vs 44.6 PassMark/$ ($174 MSRP vs $1,069 MSRP).
✅Draws 65W instead of 252W, a 187W reduction.
✅Includes a boxed cooler (Yes), unlike Xeon w5-2555X.

Why buy it

✅Better for gaming: +34.3% higher average FPS across 18 shared CPU benchmark tests.
✅+87.5% larger total L3 cache (34 MB vs 18 MB).
✅Better for workstations and heavier parallel workloads: 14 cores / 28 threads, plus 112 PCIe lanes vs 20.
✅460% more PCIe lanes (112 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon w5-2555X across 18 shared CPU benchmark tests.
❌Lower PassMark (19,532 vs 47,638).
❌Smaller total L3 cache (18 MB vs 34 MB).
❌Less compelling for workstation-style loads than Xeon w5-2555X, which brings 14 cores / 28 threads and 112 PCIe lanes.

Trade-offs

❌Lower PassMark per dollar, at 44.6 vs 112.3 PassMark/$ ($1,069 MSRP vs $174 MSRP).
❌287.7% higher power demand at 252W vs 65W.
❌No boxed cooler included, unlike Core i5-12400F.

Quick Answers

So, is Xeon w5-2555X better than Core i5-12400F?

Not in a simple one-size-fits-all way. Xeon w5-2555X makes more sense for workstation-style multi-core throughput, while Core i5-12400F is the better mainstream desktop choice for gaming, platform cost, and day-to-day practicality.

Which one is better for gaming?

If gaming is the priority, Xeon w5-2555X is the better pick here. According to our tests, it delivers 34.3% more average FPS across 18 shared CPU game tests.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Xeon w5-2555X is the better fit. You are getting 143.9% better PassMark, backed by 14 cores and 28 threads. It also carries the larger cache pool with 87.5% larger total L3 cache (34 MB vs 18 MB).

Which one is the smarter buy today, not just the cheaper CPU?

Xeon w5-2555X is still the faster CPU overall, but Core i5-12400F makes more sense if price matters more than absolute performance. Xeon w5-2555X is 514.4% more expensive on MSRP at $1,069 MSRP versus $174 MSRP, and it gives you a 34.3% average FPS lead across 18 shared CPU game tests in our data. Core i5-12400F is also 151.9% better value on MSRP (112.3 vs 44.6 PassMark/$), which is why it is easier to justify for price-conscious builds on paper.

Which one is more future-proof for 2026 and beyond?

Xeon w5-2555X is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2022), 87.5% larger total L3 cache (34 MB vs 18 MB), more multi-core headroom with 14 cores / 28 threads instead of 6/12, and AVX-512 support for heavier modern compute workloads. That should give you a better long-term upgrade path for motherboard, RAM, and future CPU swaps.

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.

Core i5-12400F Benchmark Check

Xeon w5-2555X Benchmark Check

Path of Exile 2

Preset	Core i5-12400F	Xeon w5-2555X
1080p
low	183 FPS	323 FPS
medium	168 FPS	294 FPS
high	139 FPS	239 FPS
ultra	119 FPS	202 FPS
1440p
low	153 FPS	285 FPS
medium	132 FPS	232 FPS
high	106 FPS	177 FPS
ultra	89 FPS	156 FPS
4K
low	87 FPS	196 FPS
medium	81 FPS	159 FPS
high	64 FPS	121 FPS
ultra	49 FPS	107 FPS

Open Core i5-12400F Open Xeon w5-2555X

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i5-12400F	Xeon w5-2555X
1080p
low	471 FPS	626 FPS
medium	397 FPS	519 FPS
high	341 FPS	424 FPS
ultra	301 FPS	384 FPS
1440p
low	407 FPS	517 FPS
medium	351 FPS	450 FPS
high	309 FPS	378 FPS
ultra	265 FPS	326 FPS
4K
low	282 FPS	321 FPS
medium	248 FPS	281 FPS
high	229 FPS	258 FPS
ultra	196 FPS	228 FPS

Open Core i5-12400F Open Xeon w5-2555X

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i5-12400F	Xeon w5-2555X
1080p
low	488 FPS	1025 FPS
medium	488 FPS	1191 FPS
high	488 FPS	1136 FPS
ultra	488 FPS	875 FPS
1440p
low	488 FPS	1025 FPS
medium	488 FPS	953 FPS
high	485 FPS	859 FPS
ultra	434 FPS	656 FPS
4K
low	442 FPS	656 FPS
medium	389 FPS	553 FPS
high	337 FPS	494 FPS
ultra	274 FPS	420 FPS

Open Core i5-12400F Open Xeon w5-2555X

League of Legends

League of Legends

Valorant

Preset	Core i5-12400F	Xeon w5-2555X
1080p
low	488 FPS	1191 FPS
medium	488 FPS	1015 FPS
high	488 FPS	982 FPS
ultra	488 FPS	847 FPS
1440p
low	488 FPS	1023 FPS
medium	488 FPS	883 FPS
high	488 FPS	767 FPS
ultra	473 FPS	653 FPS
4K
low	488 FPS	733 FPS
medium	450 FPS	637 FPS
high	391 FPS	562 FPS
ultra	330 FPS	437 FPS

Open Core i5-12400F Open Xeon w5-2555X

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i5-12400F and Xeon w5-2555X

Core i5-12400F

The Core i5-12400F is manufactured by Intel. It was released in 4 January 2022 (3 years ago). It is based on the Alder Lake-S (2022) architecture. It features 6 cores and 12 threads. Base frequency is 2.5 GHz, with boost up to 4.4 GHz. L3 cache: 18 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 65 Watt. Memory support: DDR5-4800, DDR4-3200. Passmark benchmark score: 19,532 points. Launch price was $180.

Xeon w5-2555X

The Xeon w5-2555X is manufactured by Intel. It was released in 2015-01-01. It features 14 cores and 28 threads. Base frequency is 3.3 GHz, with boost up to 4.8 GHz. L3 cache: 33.75 MB Intel® Smart Cache. Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 252 Watt. Memory support: DDR5-4800. Passmark benchmark score: 47,638 points. Launch price was $800.

⚡

Processing Power

The Core i5-12400F packs 6 cores / 12 threads, while the Xeon w5-2555X offers 14 cores / 28 threads — the Xeon w5-2555X has 8 more cores. Boost clocks reach 4.4 GHz on the Core i5-12400F versus 4.8 GHz on the Xeon w5-2555X — a 8.7% clock advantage for the Xeon w5-2555X (base: 2.5 GHz vs 3.3 GHz). The Core i5-12400F is built on the Alder Lake-S (2022) architecture. In PassMark, the Core i5-12400F scores 19,532 against the Xeon w5-2555X's 47,638 — a 83.7% lead for the Xeon w5-2555X. L3 cache: 18 MB (total) on the Core i5-12400F vs 33.75 MB Intel® Smart Cache on the Xeon w5-2555X.

Feature	Core i5-12400F	Xeon w5-2555X
Cores / Threads	6 / 12	14 / 28+133%
Boost Clock	4.4 GHz	4.8 GHz+9%
Base Clock	2.5 GHz	3.3 GHz+32%
L3 Cache	18 MB (total)	33.75 MB Intel® Smart Cache+88%
L2 Cache	1.25 MB (per core)	—
Process	Intel 7 nm	Intel 7 nm
Architecture	Alder Lake-S (2022)	—
PassMark	19,532	47,638+144%
Cinebench R23 Multi	12,380	—
Geekbench 6 Single	1,700	—
Geekbench 6 Multi	657	—

🧠

Memory & Platform

The Core i5-12400F uses the LGA1700 socket (PCIe 3.0), while the Xeon w5-2555X uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800, DDR4-3200 on the Core i5-12400F versus 4800 on the Xeon w5-2555X — the Xeon w5-2555X supports 199.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon w5-2555X supports up to 4096 of RAM compared to 128 GB — 187.9% more capacity for professional workloads. Memory channels: 2 (Core i5-12400F) vs 8 (Xeon w5-2555X). PCIe lanes: 20 (Core i5-12400F) vs 112 (Xeon w5-2555X) — the Xeon w5-2555X offers 92 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H610,B660,H670,Z690,B760,H770,Z790 (Core i5-12400F) and W790 (Xeon w5-2555X).

Feature	Core i5-12400F	Xeon w5-2555X
Socket	LGA1700	LGA4677
PCIe Generation	PCIe 3.0	PCIe 5.0+67%
Max RAM Speed	DDR5-4800, DDR4-3200	4800+95900%
Max RAM Capacity	128 GB+3276700%	4096
RAM Channels	2	8+300%
ECC Support	No	Yes
PCIe Lanes	20	112+460%

🔧

Advanced Features

Virtualization support: VT-x, VT-d, EPT (Core i5-12400F) vs VT-x, VT-d (Xeon w5-2555X). Primary use case: Core i5-12400F targets Gaming Performance/Value. Direct competitor: Core i5-12400F rivals Ryzen 5 5600; Xeon w5-2555X rivals Threadripper PRO 7965WX.

Feature	Core i5-12400F	Xeon w5-2555X
Integrated GPU	No	No
IGPU Model	—	None
Unlocked	—	Yes
AVX-512	—	Yes
Virtualization	VT-x, VT-d, EPT	VT-x, VT-d
Target Use	Gaming Performance/Value	—

💰

Value Analysis

The Core i5-12400F launched at $174 MSRP, while the Xeon w5-2555X debuted at $1069. On MSRP ($174 vs $1069), the Core i5-12400F is $895 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-12400F delivers 112.3 pts/$ vs 44.6 pts/$ for the Xeon w5-2555X — making the Core i5-12400F the 86.3% better value option.