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

✅+5.8% higher PassMark.
✅+50% larger total L3 cache (18 MB vs 12 MB).
✅Costs $137 less on MSRP ($174 MSRP vs $311 MSRP).
✅Delivers 89.1% more PassMark for each dollar spent, at 112.3 vs 59.4 PassMark/$ ($174 MSRP vs $311 MSRP).
✅Draws 65W instead of 80W, a 15W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E-2356G across 50 shared CPU benchmark tests.

Xeon E-2356G

2021

Why buy it

✅Better for gaming: +5.6% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌Lower PassMark (18,459 vs 19,532).
❌Smaller total L3 cache (12 MB vs 18 MB).
❌Lower PassMark per dollar, at 59.4 vs 112.3 PassMark/$ ($311 MSRP vs $174 MSRP).
❌23.1% higher power demand at 80W vs 65W.
❌Older platform position on LGA1200 with DDR4, while Core i5-12400F moves to LGA1700 and DDR5.

Core i5-12400F

2022

Xeon E-2356G

2021

Why buy it

✅+5.8% higher PassMark.
✅+50% larger total L3 cache (18 MB vs 12 MB).
✅Costs $137 less on MSRP ($174 MSRP vs $311 MSRP).
✅Delivers 89.1% more PassMark for each dollar spent, at 112.3 vs 59.4 PassMark/$ ($174 MSRP vs $311 MSRP).
✅Draws 65W instead of 80W, a 15W reduction.

Why buy it

✅Better for gaming: +5.6% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E-2356G across 50 shared CPU benchmark tests.

Trade-offs

❌Lower PassMark (18,459 vs 19,532).
❌Smaller total L3 cache (12 MB vs 18 MB).
❌Lower PassMark per dollar, at 59.4 vs 112.3 PassMark/$ ($311 MSRP vs $174 MSRP).
❌23.1% higher power demand at 80W vs 65W.
❌Older platform position on LGA1200 with DDR4, while Core i5-12400F moves to LGA1700 and DDR5.

Quick Answers

So, is Core i5-12400F better than Xeon E-2356G?

Not in a simple one-size-fits-all way. Xeon E-2356G 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 streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Core i5-12400F is the better fit. You are getting 5.8% better PassMark, backed by 6 cores and 12 threads. It also carries the larger cache pool with 50% larger total L3 cache (18 MB vs 12 MB).

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

Core i5-12400F is the smarter buy today. Core i5-12400F is $137 cheaper on MSRP at $174 MSRP versus $311 MSRP, and it gives you 5.8% better PassMark. The trade-off is that Xeon E-2356G is still the better pure gaming CPU with a 5.6% average FPS lead across 50 shared CPU game tests in our data. It is also 89.1% better value on MSRP (112.3 vs 59.4 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper.

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

Core i5-12400F is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2021), a healthier platform with LGA1700 and DDR5 instead of LGA1200, 50% larger total L3 cache (18 MB vs 12 MB), and more multi-core headroom with 6 cores / 12 threads instead of 6/12. 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 E-2356G Benchmark Check

Path of Exile 2

Preset	Core i5-12400F	Xeon E-2356G
1080p
low	183 FPS	293 FPS
medium	168 FPS	259 FPS
high	139 FPS	217 FPS
ultra	119 FPS	186 FPS
1440p
low	153 FPS	240 FPS
medium	132 FPS	192 FPS
high	106 FPS	157 FPS
ultra	89 FPS	138 FPS
4K
low	87 FPS	167 FPS
medium	81 FPS	135 FPS
high	64 FPS	104 FPS
ultra	49 FPS	91 FPS

Open Core i5-12400F Open Xeon E-2356G

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i5-12400F	Xeon E-2356G
1080p
low	471 FPS	461 FPS
medium	397 FPS	421 FPS
high	341 FPS	378 FPS
ultra	301 FPS	334 FPS
1440p
low	407 FPS	461 FPS
medium	351 FPS	386 FPS
high	309 FPS	348 FPS
ultra	265 FPS	304 FPS
4K
low	282 FPS	378 FPS
medium	248 FPS	314 FPS
high	229 FPS	293 FPS
ultra	196 FPS	248 FPS

Open Core i5-12400F Open Xeon E-2356G

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i5-12400F	Xeon E-2356G
1080p
low	488 FPS	461 FPS
medium	488 FPS	461 FPS
high	488 FPS	461 FPS
ultra	488 FPS	461 FPS
1440p
low	488 FPS	461 FPS
medium	488 FPS	461 FPS
high	485 FPS	461 FPS
ultra	434 FPS	424 FPS
4K
low	442 FPS	461 FPS
medium	389 FPS	424 FPS
high	337 FPS	363 FPS
ultra	274 FPS	297 FPS

Open Core i5-12400F Open Xeon E-2356G

League of Legends

League of Legends

Valorant

Preset	Core i5-12400F	Xeon E-2356G
1080p
low	488 FPS	461 FPS
medium	488 FPS	461 FPS
high	488 FPS	461 FPS
ultra	488 FPS	461 FPS
1440p
low	488 FPS	461 FPS
medium	488 FPS	461 FPS
high	488 FPS	461 FPS
ultra	473 FPS	461 FPS
4K
low	488 FPS	461 FPS
medium	450 FPS	461 FPS
high	391 FPS	461 FPS
ultra	330 FPS	433 FPS

Open Core i5-12400F Open Xeon E-2356G

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i5-12400F and Xeon E-2356G

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 E-2356G

The Xeon E-2356G is manufactured by Intel. It was released in 2015-01-01. It is based on the Rocket Lake-E (2021) architecture. It features 6 cores and 12 threads. Base frequency is 3.2 GHz, with boost up to 5 GHz. L3 cache: 12 MB (total). L2 cache: 512K (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 80 Watt. Memory support: DDR4-3200. Passmark benchmark score: 18,459 points. Launch price was $800.

⚡

Processing Power

Both the Core i5-12400F and Xeon E-2356G share an identical 6-core/12-thread configuration. Boost clocks reach 4.4 GHz on the Core i5-12400F versus 5 GHz on the Xeon E-2356G — a 12.8% clock advantage for the Xeon E-2356G (base: 2.5 GHz vs 3.2 GHz). The Core i5-12400F uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the Xeon E-2356G uses Rocket Lake-E (2021) (14 nm). In PassMark, the Core i5-12400F scores 19,532 against the Xeon E-2356G's 18,459 — a 5.6% lead for the Core i5-12400F. L3 cache: 18 MB (total) on the Core i5-12400F vs 12 MB (total) on the Xeon E-2356G.

Feature	Core i5-12400F	Xeon E-2356G
Cores / Threads	6 / 12	6 / 12
Boost Clock	4.4 GHz	5 GHz+14%
Base Clock	2.5 GHz	3.2 GHz+28%
L3 Cache	18 MB (total)+50%	12 MB (total)
L2 Cache	1.25 MB (per core)+150%	512K (per core)
Process	Intel 7 nm-50%	14 nm
Architecture	Alder Lake-S (2022)	Rocket Lake-E (2021)
PassMark	19,532+6%	18,459
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 E-2356G uses LGA1200 (PCIe 4.0) — making them incompatible on the same motherboard.

Feature	Core i5-12400F	Xeon E-2356G
Socket	LGA1700	LGA1200
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	DDR5-4800, DDR4-3200	—
Max RAM Capacity	128 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	20	—

🔧

Advanced Features

Virtualization: VT-x, VT-d, EPT (Core i5-12400F) / not specified (Xeon E-2356G). Primary use case: Core i5-12400F targets Gaming Performance/Value. Direct competitor: Core i5-12400F rivals Ryzen 5 5600.

Feature	Core i5-12400F	Xeon E-2356G
Integrated GPU	No	—
Virtualization	VT-x, VT-d, EPT	—
Target Use	Gaming Performance/Value	—

💰

Value Analysis

The Core i5-12400F launched at $174 MSRP, while the Xeon E-2356G debuted at $311. On MSRP ($174 vs $311), the Core i5-12400F is $137 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-12400F delivers 112.3 pts/$ vs 59.4 pts/$ for the Xeon E-2356G — making the Core i5-12400F the 61.7% better value option.