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 i3-1210U

2022

Why buy it

✅Draws 9W instead of 65W, a 56W reduction.
✅Integrated graphics onboard with UHD Graphics for 12th Gen (64 EU), while Core i5-12400F needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-12400F across 3 shared CPU benchmark tests.
❌Lower PassMark (9,438 vs 19,532).
❌Smaller total L3 cache (10 MB vs 18 MB).
❌No boxed cooler included, unlike Core i5-12400F.

Core i5-12400F

2022

Why buy it

✅Better for gaming: +97.4% higher average FPS across 3 shared CPU benchmark tests.
✅+80% larger total L3 cache (18 MB vs 10 MB).
✅42.9% more PCIe lanes (20 vs 14) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Yes), unlike Core i3-1210U.

Trade-offs

❌Launch MSRP is still $174 MSRP, while Core i3-1210U mostly shows up through inconsistent older-market listings.
❌622.2% higher power demand at 65W vs 9W.
❌No integrated graphics, while Core i3-1210U can still boot and troubleshoot without a discrete GPU.

Core i3-1210U

2022

Core i5-12400F

2022

Why buy it

✅Draws 9W instead of 65W, a 56W reduction.
✅Integrated graphics onboard with UHD Graphics for 12th Gen (64 EU), while Core i5-12400F needs a discrete GPU.

Why buy it

✅Better for gaming: +97.4% higher average FPS across 3 shared CPU benchmark tests.
✅+80% larger total L3 cache (18 MB vs 10 MB).
✅42.9% more PCIe lanes (20 vs 14) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Yes), unlike Core i3-1210U.

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-12400F across 3 shared CPU benchmark tests.
❌Lower PassMark (9,438 vs 19,532).
❌Smaller total L3 cache (10 MB vs 18 MB).
❌No boxed cooler included, unlike Core i5-12400F.

Trade-offs

❌Launch MSRP is still $174 MSRP, while Core i3-1210U mostly shows up through inconsistent older-market listings.
❌622.2% higher power demand at 65W vs 9W.
❌No integrated graphics, while Core i3-1210U can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i5-12400F better than Core i3-1210U?

Yes. Core i5-12400F is the better overall CPU here. You are getting a 97.4% average FPS lead across 3 shared CPU game tests in our data, 107% 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 i5-12400F is the better pick here. According to our tests, it delivers 97.4% more average FPS across 3 shared CPU game tests.

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 107% better PassMark, backed by 6 cores and 12 threads. It also carries the larger cache pool with 80% larger total L3 cache (18 MB vs 10 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 at an unclear MSRP at $174 MSRP versus unclear MSRP, and it gives you a 97.4% average FPS lead across 3 shared CPU game tests in our data. It is also 100.0% better value on MSRP (112.3 vs 0.0 PassMark/$), 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 80% larger total L3 cache (18 MB vs 10 MB) and more multi-core headroom with 6 cores / 12 threads instead of 6/8. 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.

Core i3-1210U Benchmark Check

Core i5-12400F Benchmark Check

Path of Exile 2

Preset	Core i3-1210U	Core i5-12400F
1080p
low	184 FPS	183 FPS
medium	150 FPS	168 FPS
high	124 FPS	139 FPS
ultra	102 FPS	119 FPS
1440p
low	150 FPS	153 FPS
medium	119 FPS	132 FPS
high	97 FPS	106 FPS
ultra	80 FPS	89 FPS
4K
low	84 FPS	87 FPS
medium	72 FPS	81 FPS
high	58 FPS	64 FPS
ultra	45 FPS	49 FPS

Open Core i3-1210U Open Core i5-12400F

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i3-1210U	Core i5-12400F
1080p
low	185 FPS	471 FPS
medium	153 FPS	397 FPS
high	141 FPS	341 FPS
ultra	122 FPS	301 FPS
1440p
low	161 FPS	407 FPS
medium	136 FPS	351 FPS
high	129 FPS	309 FPS
ultra	110 FPS	265 FPS
4K
low	135 FPS	282 FPS
medium	118 FPS	248 FPS
high	110 FPS	229 FPS
ultra	95 FPS	196 FPS

Open Core i3-1210U Open Core i5-12400F

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i3-1210U	Core i5-12400F
1080p
low	236 FPS	488 FPS
medium	236 FPS	488 FPS
high	236 FPS	488 FPS
ultra	236 FPS	488 FPS
1440p
low	236 FPS	488 FPS
medium	236 FPS	488 FPS
high	236 FPS	485 FPS
ultra	236 FPS	434 FPS
4K
low	236 FPS	442 FPS
medium	236 FPS	389 FPS
high	236 FPS	337 FPS
ultra	236 FPS	274 FPS

Open Core i3-1210U Open Core i5-12400F

League of Legends

League of Legends

Valorant

Preset	Core i3-1210U	Core i5-12400F
1080p
low	236 FPS	488 FPS
medium	236 FPS	488 FPS
high	236 FPS	488 FPS
ultra	236 FPS	488 FPS
1440p
low	236 FPS	488 FPS
medium	236 FPS	488 FPS
high	236 FPS	488 FPS
ultra	236 FPS	473 FPS
4K
low	236 FPS	488 FPS
medium	236 FPS	450 FPS
high	236 FPS	391 FPS
ultra	236 FPS	330 FPS

Open Core i3-1210U Open Core i5-12400F

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i3-1210U and Core i5-12400F

Core i3-1210U

The Core i3-1210U is manufactured by Intel. It was released in 23 February 2022 (3 years ago). It is based on the Alder Lake-U (2022) architecture. It features 6 cores and 8 threads. Base frequency is 1 GHz, with boost up to 4.4 GHz. L3 cache: 10 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: FCBGA1781. Thermal design power (TDP): 9 Watt. Memory support: DDR4, DDR5. Passmark benchmark score: 9,438 points. Launch price was $149.

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.

⚡

Processing Power

The Core i3-1210U packs 6 cores / 8 threads, matching the Core i5-12400F's 6 cores. Boost clocks reach 4.4 GHz on the Core i3-1210U versus 4.4 GHz on the Core i5-12400F — identical boost frequencies (base: 1 GHz vs 2.5 GHz). The Core i3-1210U uses the Alder Lake-U (2022) architecture (Intel 7 nm), while the Core i5-12400F uses Alder Lake-S (2022) (Intel 7 nm). In PassMark, the Core i3-1210U scores 9,438 against the Core i5-12400F's 19,532 — a 69.7% lead for the Core i5-12400F. Geekbench 6 single-core — the metric most relevant to gaming — records 2,040 vs 1,700, a 18.2% lead for the Core i3-1210U that directly translates to higher frame rates. L3 cache: 10 MB (total) on the Core i3-1210U vs 18 MB (total) on the Core i5-12400F.

Feature	Core i3-1210U	Core i5-12400F
Cores / Threads	6 / 8	6 / 12
Boost Clock	4.4 GHz	4.4 GHz
Base Clock	1 GHz	2.5 GHz+150%
L3 Cache	10 MB (total)	18 MB (total)+80%
L2 Cache	1.25 MB (per core)	1.25 MB (per core)
Process	Intel 7 nm	Intel 7 nm
Architecture	Alder Lake-U (2022)	Alder Lake-S (2022)
PassMark	9,438	19,532+107%
Cinebench R23 Multi	—	12,380
Geekbench 6 Single	2,040+20%	1,700
Geekbench 6 Multi	—	657

🧠

Memory & Platform

The Core i3-1210U uses the FCBGA1781 socket (PCIe 5.0), while the Core i5-12400F uses LGA1700 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to LPDDR5-5200 memory speed. The Core i5-12400F supports up to 128 GB of RAM compared to 64 GB — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 14 (Core i3-1210U) vs 20 (Core i5-12400F) — the Core i5-12400F offers 6 more lanes for additional GPUs or NVMe drives.

Feature	Core i3-1210U	Core i5-12400F
Socket	FCBGA1781	LGA1700
PCIe Generation	PCIe 5.0+67%	PCIe 3.0
Max RAM Speed	LPDDR5-5200	DDR5-4800, DDR4-3200
Max RAM Capacity	64 GB	128 GB+100%
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	14	20+43%

🔧

Advanced Features

Both support VT-x, VT-d, EPT virtualization. The Core i3-1210U includes integrated graphics (UHD Graphics for 12th Gen (64 EU)), while the Core i5-12400F requires a dedicated GPU. Primary use case: Core i3-1210U targets Thin & Light Laptop, Core i5-12400F targets Gaming Performance/Value. Direct competitor: Core i3-1210U rivals Ryzen 3 5425U; Core i5-12400F rivals Ryzen 5 5600.

Feature	Core i3-1210U	Core i5-12400F
Integrated GPU	Yes	No
IGPU Model	UHD Graphics for 12th Gen (64 EU)	—
Unlocked	No	—
AVX-512	No	—
Virtualization	VT-x, VT-d, EPT	VT-x, VT-d, EPT
Target Use	Thin & Light Laptop	Gaming Performance/Value