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 $2,575 less on MSRP ($174 MSRP vs $2,749 MSRP).
✅Delivers 355.4% more PassMark for each dollar spent, at 112.3 vs 24.6 PassMark/$ ($174 MSRP vs $2,749 MSRP).
✅Draws 65W instead of 325W, a 260W reduction.
✅Includes a boxed cooler (Yes), unlike Xeon w7-3555.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon w7-3555 across 4 shared CPU benchmark tests.
❌Lower Geekbench multi-core (657 vs 17,120).
❌Smaller total L3 cache (18 MB vs 75 MB).
❌Less compelling for workstation-style loads than Xeon w7-3555, which brings 28 cores / 56 threads and 112 PCIe lanes.

Xeon w7-3555

2024

Why buy it

✅Better for gaming: +62.9% higher average FPS across 4 shared CPU benchmark tests.
✅+316.7% larger total L3 cache (75 MB vs 18 MB).
✅Better for workstations and heavier parallel workloads: 28 cores / 56 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 24.6 vs 112.3 PassMark/$ ($2,749 MSRP vs $174 MSRP).
❌400% higher power demand at 325W vs 65W.
❌No boxed cooler included, unlike Core i5-12400F.

Core i5-12400F

2022

Xeon w7-3555

2024

Why buy it

✅Costs $2,575 less on MSRP ($174 MSRP vs $2,749 MSRP).
✅Delivers 355.4% more PassMark for each dollar spent, at 112.3 vs 24.6 PassMark/$ ($174 MSRP vs $2,749 MSRP).
✅Draws 65W instead of 325W, a 260W reduction.
✅Includes a boxed cooler (Yes), unlike Xeon w7-3555.

Why buy it

✅Better for gaming: +62.9% higher average FPS across 4 shared CPU benchmark tests.
✅+316.7% larger total L3 cache (75 MB vs 18 MB).
✅Better for workstations and heavier parallel workloads: 28 cores / 56 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 w7-3555 across 4 shared CPU benchmark tests.
❌Lower Geekbench multi-core (657 vs 17,120).
❌Smaller total L3 cache (18 MB vs 75 MB).
❌Less compelling for workstation-style loads than Xeon w7-3555, which brings 28 cores / 56 threads and 112 PCIe lanes.

Trade-offs

❌Lower PassMark per dollar, at 24.6 vs 112.3 PassMark/$ ($2,749 MSRP vs $174 MSRP).
❌400% higher power demand at 325W vs 65W.
❌No boxed cooler included, unlike Core i5-12400F.

Quick Answers

So, is Xeon w7-3555 better than Core i5-12400F?

Not in a simple one-size-fits-all way. Xeon w7-3555 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 w7-3555 is the better pick here. According to our tests, it delivers 62.9% more average FPS across 4 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Xeon w7-3555 is the better fit. You are getting 2505.8% better Geekbench multi-core, backed by 28 cores and 56 threads. It also carries the larger cache pool with 316.7% larger total L3 cache (75 MB vs 18 MB).

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

Xeon w7-3555 is still the faster CPU overall, but Core i5-12400F makes more sense if price matters more than absolute performance. Xeon w7-3555 is 1479.9% more expensive on MSRP at $2,749 MSRP versus $174 MSRP, and it gives you a 62.9% average FPS lead across 4 shared CPU game tests in our data. Core i5-12400F is also 355.4% better value on MSRP (112.3 vs 24.6 PassMark/$), 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 w7-3555 is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2022), 316.7% larger total L3 cache (75 MB vs 18 MB), more multi-core headroom with 28 cores / 56 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 w7-3555 Benchmark Check

Path of Exile 2

Preset	Core i5-12400F	Xeon w7-3555
1080p
low	183 FPS	311 FPS
medium	168 FPS	301 FPS
high	139 FPS	242 FPS
ultra	119 FPS	204 FPS
1440p
low	153 FPS	270 FPS
medium	132 FPS	233 FPS
high	106 FPS	175 FPS
ultra	89 FPS	154 FPS
4K
low	87 FPS	184 FPS
medium	81 FPS	157 FPS
high	64 FPS	118 FPS
ultra	49 FPS	106 FPS

Open Core i5-12400F Open Xeon w7-3555

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i5-12400F	Xeon w7-3555
1080p
low	471 FPS	682 FPS
medium	397 FPS	593 FPS
high	341 FPS	482 FPS
ultra	301 FPS	427 FPS
1440p
low	407 FPS	551 FPS
medium	351 FPS	489 FPS
high	309 FPS	415 FPS
ultra	265 FPS	341 FPS
4K
low	282 FPS	324 FPS
medium	248 FPS	288 FPS
high	229 FPS	267 FPS
ultra	196 FPS	234 FPS

Open Core i5-12400F Open Xeon w7-3555

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i5-12400F	Xeon w7-3555
1080p
low	488 FPS	1025 FPS
medium	488 FPS	1057 FPS
high	488 FPS	974 FPS
ultra	488 FPS	834 FPS
1440p
low	488 FPS	1001 FPS
medium	488 FPS	888 FPS
high	485 FPS	802 FPS
ultra	434 FPS	656 FPS
4K
low	442 FPS	600 FPS
medium	389 FPS	517 FPS
high	337 FPS	461 FPS
ultra	274 FPS	397 FPS

Open Core i5-12400F Open Xeon w7-3555

League of Legends

League of Legends

Valorant

Preset	Core i5-12400F	Xeon w7-3555
1080p
low	488 FPS	1212 FPS
medium	488 FPS	1015 FPS
high	488 FPS	925 FPS
ultra	488 FPS	809 FPS
1440p
low	488 FPS	980 FPS
medium	488 FPS	845 FPS
high	488 FPS	736 FPS
ultra	473 FPS	635 FPS
4K
low	488 FPS	727 FPS
medium	450 FPS	632 FPS
high	391 FPS	557 FPS
ultra	330 FPS	437 FPS

Open Core i5-12400F Open Xeon w7-3555

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i5-12400F and Xeon w7-3555

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 w7-3555

The Xeon w7-3555 is manufactured by Intel. It was released in 24 August 2024 (1 year ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 28 cores and 56 threads. Base frequency is 2.7 GHz, with boost up to 4.8 GHz. L3 cache: 75 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 325 Watt. Memory support: DDR5-4800. Passmark benchmark score: 67,754 points. Launch price was $2,339.

⚡

Processing Power

The Core i5-12400F packs 6 cores / 12 threads, while the Xeon w7-3555 offers 28 cores / 56 threads — the Xeon w7-3555 has 22 more cores. Boost clocks reach 4.4 GHz on the Core i5-12400F versus 4.8 GHz on the Xeon w7-3555 — a 8.7% clock advantage for the Xeon w7-3555 (base: 2.5 GHz vs 2.7 GHz). The Core i5-12400F uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the Xeon w7-3555 uses Sapphire Rapids (2023−2024) (Intel 7 nm). In PassMark, the Core i5-12400F scores 19,532 against the Xeon w7-3555's 67,754 — a 110.5% lead for the Xeon w7-3555. Geekbench 6 single-core — the metric most relevant to gaming — records 1,700 vs 2,300, a 30% lead for the Xeon w7-3555 that directly translates to higher frame rates. Multi-core Geekbench: 657 vs 17,120 (185.2% advantage for the Xeon w7-3555). L3 cache: 18 MB (total) on the Core i5-12400F vs 75 MB on the Xeon w7-3555.

Feature	Core i5-12400F	Xeon w7-3555
Cores / Threads	6 / 12	28 / 56+367%
Boost Clock	4.4 GHz	4.8 GHz+9%
Base Clock	2.5 GHz	2.7 GHz+8%
L3 Cache	18 MB (total)	75 MB+317%
L2 Cache	1.25 MB (per core)	2 MB (per core)+60%
Process	Intel 7 nm	Intel 7 nm
Architecture	Alder Lake-S (2022)	Sapphire Rapids (2023−2024)
PassMark	19,532	67,754+247%
Cinebench R23 Multi	12,380	—
Geekbench 6 Single	1,700	2,300+35%
Geekbench 6 Multi	657	17,120+2506%

🧠

Memory & Platform

The Core i5-12400F uses the LGA1700 socket (PCIe 3.0), while the Xeon w7-3555 uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to DDR5-4800, DDR4-3200 memory speed. The Xeon w7-3555 supports up to 4096 GB of RAM compared to 128 GB — 187.9% more capacity for professional workloads. Memory channels: 2 (Core i5-12400F) vs 8 (Xeon w7-3555). PCIe lanes: 20 (Core i5-12400F) vs 112 (Xeon w7-3555) — the Xeon w7-3555 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 w7-3555).

Feature	Core i5-12400F	Xeon w7-3555
Socket	LGA1700	LGA4677
PCIe Generation	PCIe 3.0	PCIe 5.0+67%
Max RAM Speed	DDR5-4800, DDR4-3200	DDR5-4800
Max RAM Capacity	128 GB	4096 GB+3100%
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 true (Xeon w7-3555). Primary use case: Core i5-12400F targets Gaming Performance/Value. Direct competitor: Core i5-12400F rivals Ryzen 5 5600; Xeon w7-3555 rivals Threadripper PRO 7965WX.

Feature	Core i5-12400F	Xeon w7-3555
Integrated GPU	No	No
IGPU Model	—	None
Unlocked	—	Yes
AVX-512	—	Yes
Virtualization	VT-x, VT-d, EPT	true
Target Use	Gaming Performance/Value	—

💰

Value Analysis

The Core i5-12400F launched at $174 MSRP, while the Xeon w7-3555 debuted at $2749. On MSRP ($174 vs $2749), the Core i5-12400F is $2575 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-12400F delivers 112.3 pts/$ vs 24.6 pts/$ for the Xeon w7-3555 — making the Core i5-12400F the 128% better value option.