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 i5-1335U

2023

Why buy it

✅Draws 15W instead of 65W, a 50W reduction.
✅Integrated graphics onboard with Iris Xe Graphics (80 EU), while Core i5-12400F needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-12400F across 23 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (8,977 vs 12,380).
❌Smaller total L3 cache (12 MB vs 18 MB).
❌No boxed cooler included, unlike Core i5-12400F.

Core i5-12400F

2022

Why buy it

✅Better for gaming: +4.4% higher average FPS across 23 shared CPU benchmark tests.
✅+50% larger total L3 cache (18 MB vs 12 MB).
✅Includes a boxed cooler (Yes), unlike Core i5-1335U.

Trade-offs

❌Launch MSRP is still $174 MSRP, while Core i5-1335U mostly shows up through inconsistent older-market listings.
❌333.3% higher power demand at 65W vs 15W.
❌No integrated graphics, while Core i5-1335U can still boot and troubleshoot without a discrete GPU.

Core i5-1335U

2023

Core i5-12400F

2022

Why buy it

✅Draws 15W instead of 65W, a 50W reduction.
✅Integrated graphics onboard with Iris Xe Graphics (80 EU), while Core i5-12400F needs a discrete GPU.

Why buy it

✅Better for gaming: +4.4% higher average FPS across 23 shared CPU benchmark tests.
✅+50% larger total L3 cache (18 MB vs 12 MB).
✅Includes a boxed cooler (Yes), unlike Core i5-1335U.

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-12400F across 23 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (8,977 vs 12,380).
❌Smaller total L3 cache (12 MB vs 18 MB).
❌No boxed cooler included, unlike Core i5-12400F.

Trade-offs

❌Launch MSRP is still $174 MSRP, while Core i5-1335U mostly shows up through inconsistent older-market listings.
❌333.3% higher power demand at 65W vs 15W.
❌No integrated graphics, while Core i5-1335U can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i5-12400F better than Core i5-1335U?

Yes. Core i5-12400F is the better overall CPU here. You are getting a 4.4% average FPS lead across 23 shared CPU game tests in our data, 37.9% better Cinebench R23 multi-core, and 38.6% higher PassMark, 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 4.4% more average FPS across 23 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 37.9% better Cinebench R23 multi-core, 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 at an unclear MSRP at $174 MSRP versus unclear MSRP, and it gives you a 4.4% average FPS lead across 23 shared CPU game tests in our data. It is also 100.0% better value on MSRP (112.3 vs 0.0 PassMark/$), 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 i5-1335U is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2022). That makes it the safer long-term pick.

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 i5-1335U Benchmark Check

Core i5-12400F Benchmark Check

Path of Exile 2

Preset	Core i5-1335U	Core i5-12400F
1080p
low	187 FPS	183 FPS
medium	156 FPS	168 FPS
high	130 FPS	139 FPS
ultra	106 FPS	119 FPS
1440p
low	151 FPS	153 FPS
medium	120 FPS	132 FPS
high	98 FPS	106 FPS
ultra	81 FPS	89 FPS
4K
low	85 FPS	87 FPS
medium	73 FPS	81 FPS
high	59 FPS	64 FPS
ultra	46 FPS	49 FPS

Open Core i5-1335U Open Core i5-12400F

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i5-1335U	Core i5-12400F
1080p
low	219 FPS	471 FPS
medium	182 FPS	397 FPS
high	164 FPS	341 FPS
ultra	144 FPS	301 FPS
1440p
low	190 FPS	407 FPS
medium	162 FPS	351 FPS
high	150 FPS	309 FPS
ultra	129 FPS	265 FPS
4K
low	148 FPS	282 FPS
medium	130 FPS	248 FPS
high	124 FPS	229 FPS
ultra	107 FPS	196 FPS

Open Core i5-1335U Open Core i5-12400F

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i5-1335U	Core i5-12400F
1080p
low	352 FPS	488 FPS
medium	352 FPS	488 FPS
high	352 FPS	488 FPS
ultra	352 FPS	488 FPS
1440p
low	352 FPS	488 FPS
medium	352 FPS	488 FPS
high	352 FPS	485 FPS
ultra	352 FPS	434 FPS
4K
low	352 FPS	442 FPS
medium	352 FPS	389 FPS
high	352 FPS	337 FPS
ultra	283 FPS	274 FPS

Open Core i5-1335U Open Core i5-12400F

League of Legends

League of Legends

Valorant

Preset	Core i5-1335U	Core i5-12400F
1080p
low	352 FPS	488 FPS
medium	352 FPS	488 FPS
high	352 FPS	488 FPS
ultra	352 FPS	488 FPS
1440p
low	352 FPS	488 FPS
medium	352 FPS	488 FPS
high	352 FPS	488 FPS
ultra	352 FPS	473 FPS
4K
low	352 FPS	488 FPS
medium	352 FPS	450 FPS
high	352 FPS	391 FPS
ultra	352 FPS	330 FPS

Open Core i5-1335U Open Core i5-12400F

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i5-1335U and Core i5-12400F

Core i5-1335U

The Core i5-1335U is manufactured by Intel. It was released in 4 January 2023 (2 years ago). It is based on the Raptor Lake-U (2023) architecture. It features 10 cores and 12 threads. Base frequency is 1.3 GHz, with boost up to 4.6 GHz. L3 cache: 12 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: FCBGA1744. Thermal design power (TDP): 15 Watt. Memory support: DDR5-5200, DDR4-3200, LPDDR4x-4267. Passmark benchmark score: 14,093 points. Launch price was $340.

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 i5-1335U packs 10 cores / 12 threads, while the Core i5-12400F offers 6 cores / 12 threads — the Core i5-1335U has 4 more cores. Boost clocks reach 4.6 GHz on the Core i5-1335U versus 4.4 GHz on the Core i5-12400F — a 4.4% clock advantage for the Core i5-1335U (base: 1.3 GHz vs 2.5 GHz). The Core i5-1335U uses the Raptor Lake-U (2023) architecture (Intel 7 nm), while the Core i5-12400F uses Alder Lake-S (2022) (Intel 7 nm). In PassMark, the Core i5-1335U scores 14,093 against the Core i5-12400F's 19,532 — a 32.4% lead for the Core i5-12400F. Cinebench R23 multi-core: 8,977 vs 12,380 (31.9% advantage for the Core i5-12400F). Geekbench 6 single-core — the metric most relevant to gaming — records 2,389 vs 1,700, a 33.7% lead for the Core i5-1335U that directly translates to higher frame rates. Multi-core Geekbench: 9,456 vs 657 (174% advantage for the Core i5-1335U). L3 cache: 12 MB (total) on the Core i5-1335U vs 18 MB (total) on the Core i5-12400F.

Feature	Core i5-1335U	Core i5-12400F
Cores / Threads	10 / 12+67%	6 / 12
Boost Clock	4.6 GHz+5%	4.4 GHz
Base Clock	1.3 GHz	2.5 GHz+92%
L3 Cache	12 MB (total)	18 MB (total)+50%
L2 Cache	1.25 MB (per core)	1.25 MB (per core)
Process	Intel 7 nm	Intel 7 nm
Architecture	Raptor Lake-U (2023)	Alder Lake-S (2022)
PassMark	14,093	19,532+39%
Cinebench R23 Multi	8,977	12,380+38%
Geekbench 6 Single	2,389+41%	1,700
Geekbench 6 Multi	9,456+1339%	657

🧠

Memory & Platform

The Core i5-1335U uses the FCBGA1744 socket (PCIe 3.0), while the Core i5-12400F uses LGA1700 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to LPDDR5-6400 memory speed. The Core i5-12400F supports up to 128 GB of RAM compared to 96 GB — 28.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 20 PCIe lanes. Chipset compatibility: SoC (Core i5-1335U) and H610,B660,H670,Z690,B760,H770,Z790 (Core i5-12400F).

Feature	Core i5-1335U	Core i5-12400F
Socket	FCBGA1744	LGA1700
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	LPDDR5-6400	DDR5-4800, DDR4-3200
Max RAM Capacity	96 GB	128 GB+33%
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	20	20

🔧

Advanced Features

Both support VT-x, VT-d, EPT virtualization. The Core i5-1335U includes integrated graphics (Iris Xe Graphics (80 EU)), while the Core i5-12400F requires a dedicated GPU. Primary use case: Core i5-1335U targets Productivity, Core i5-12400F targets Gaming Performance/Value. Direct competitor: Core i5-1335U rivals Ryzen 5 7535U; Core i5-12400F rivals Ryzen 5 5600.

Feature	Core i5-1335U	Core i5-12400F
Integrated GPU	Yes	No
IGPU Model	Iris Xe Graphics (80 EU)	—
Unlocked	No	—
AVX-512	No	—
Virtualization	VT-x, VT-d, EPT	VT-x, VT-d, EPT
Target Use	Productivity	Gaming Performance/Value