Core i5-10400F vs Core i7-3820QM

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.

Core i5-10400F vs Core i7-3820QM FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Core i5-10400F vs Core i7-3820QM: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Core i5-10400F

2020

Why buy it

✅Better for gaming: +56.9% higher average FPS across 50 shared CPU benchmark tests.
✅+50% larger total L3 cache (12 MB vs 8 MB).
✅Includes a boxed cooler (Yes), unlike Core i7-3820QM.

Trade-offs

❌Launch MSRP is still $160 MSRP, while Core i7-3820QM mostly shows up through inconsistent older-market listings.
❌44.4% higher power demand at 65W vs 45W.
❌No integrated graphics, while Core i7-3820QM can still boot and troubleshoot without a discrete GPU.

Core i7-3820QM

2012

Why buy it

✅Draws 45W instead of 65W, a 20W reduction.
✅Integrated graphics onboard with HD Graphics 4000, while Core i5-10400F needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-10400F across 50 shared CPU benchmark tests.
❌Lower PassMark (5,607 vs 13,029).
❌Smaller total L3 cache (8 MB vs 12 MB).
❌No boxed cooler included, unlike Core i5-10400F.

Quick Answers

So, is Core i5-10400F better than Core i7-3820QM?

Yes. Core i5-10400F is the better all-around CPU here. It gives you a 56.9% average FPS lead across 50 shared CPU game tests in our data, 132.4% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core i5-10400F is the better pick. According to our tests, it delivers 56.9% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Core i5-10400F is the stronger fit. You are getting 132.4% better PassMark, backed by 6 cores and 12 threads. It also has the larger cache pool with 50% larger total L3 cache (12 MB vs 8 MB).

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

Core i5-10400F is the better buy right now. Core i5-10400F comes in at an unclear MSRP at $160 MSRP versus unclear MSRP, and it still gives you a 56.9% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (81.4 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Core i5-10400F makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2012), 50% larger total L3 cache (12 MB vs 8 MB), and more multi-core headroom with 6 cores / 12 threads instead of 4/8. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i5-10400F vs Core i7-3820QM Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Core i5-10400F

The Core i5-10400F is manufactured by Intel. It was released in 30 April 2020 (5 years ago). It is based on the Comet Lake (2020−2025) architecture. It features 6 cores and 12 threads. Base frequency is 2.9 GHz, with boost up to 4.3 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 65 Watt. Memory support: DDR4. Passmark benchmark score: 13,029 points. Launch price was $155.

Core i7-3820QM

The Core i7-3820QM is manufactured by Intel. It was released in 29 April 2012 (13 years ago). It is based on the Ivy Bridge (2012−2013) architecture. It features 4 cores and 8 threads. Base frequency is 2.7 GHz, with boost up to 3.7 GHz. L3 cache: 8 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: PGA988. Thermal design power (TDP): 45 Watt. Memory support: DDR3. Passmark benchmark score: 5,607 points. Launch price was $498.

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Processing Power

The Core i5-10400F packs 6 cores / 12 threads, while the Core i7-3820QM offers 4 cores / 8 threads — the Core i5-10400F has 2 more cores. Boost clocks reach 4.3 GHz on the Core i5-10400F versus 3.7 GHz on the Core i7-3820QM — a 15% clock advantage for the Core i5-10400F (base: 2.9 GHz vs 2.7 GHz). The Core i5-10400F uses the Comet Lake (2020−2025) architecture (14 nm), while the Core i7-3820QM uses Ivy Bridge (2012−2013) (22 nm). In PassMark, the Core i5-10400F scores 13,029 against the Core i7-3820QM's 5,607 — a 79.7% lead for the Core i5-10400F. Geekbench 6 single-core — the metric most relevant to gaming — records 1,454 vs 604, a 82.6% lead for the Core i5-10400F that directly translates to higher frame rates. L3 cache: 12 MB (total) on the Core i5-10400F vs 8 MB (total) on the Core i7-3820QM.

Feature	Core i5-10400F	Core i7-3820QM
Cores / Threads	6 / 12+50%	4 / 8
Boost Clock	4.3 GHz+16%	3.7 GHz
Base Clock	2.9 GHz+7%	2.7 GHz
L3 Cache	12 MB (total)+50%	8 MB (total)
L2 Cache	256K (per core)	256K (per core)
Process	14 nm-36%	22 nm
Architecture	Comet Lake (2020−2025)	Ivy Bridge (2012−2013)
PassMark	13,029+132%	5,607
Cinebench R23 Multi	8,191	—
Geekbench 6 Single	1,454+141%	604
Geekbench 6 Multi	5,783	—

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Memory & Platform

The Core i5-10400F uses the LGA1200 socket (PCIe 3.0), while the Core i7-3820QM uses PGA988 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2666 on the Core i5-10400F versus DDR3-1600 on the Core i7-3820QM — the Core i5-10400F supports 66.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-10400F supports up to 128 GB of RAM compared to 32 GB — 300% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: H410,B460,H470,Z490,H510,B560,H570,Z590 (Core i5-10400F) and HM75,HM76,HM77,QM77,QS77 (Core i7-3820QM).

Feature	Core i5-10400F	Core i7-3820QM
Socket	LGA1200	PGA988
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR4-2666+67%	DDR3-1600
Max RAM Capacity	128 GB+300%	32 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16	16

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Advanced Features

Neither processor supports overclocking. Virtualization support: VT-x, VT-d (Core i5-10400F) vs VT-x, VT-d, EPT (Core i7-3820QM). The Core i7-3820QM includes integrated graphics (HD Graphics 4000), while the Core i5-10400F requires a dedicated GPU. Primary use case: Core i5-10400F targets Gaming, Core i7-3820QM targets High Performance Laptop. Direct competitor: Core i5-10400F rivals Ryzen 5 3600; Core i7-3820QM rivals A10-4600M.