Core i5-6600T 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 i5-6600T 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 i5-6600T 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 i5-6600T

2015

Why buy it

✅Draws 35W instead of 45W, a 10W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-3820QM across 50 shared CPU benchmark tests.
❌Lower PassMark (5,565 vs 5,607).
❌Smaller total L3 cache (6 MB vs 8 MB).
❌Launch MSRP is still $213 MSRP, while Core i7-3820QM mostly shows up through inconsistent older-market listings.

Core i7-3820QM

2012

Why buy it

✅Better for gaming: +17.1% higher average FPS across 50 shared CPU benchmark tests.
✅+33.3% larger total L3 cache (8 MB vs 6 MB).

Trade-offs

❌28.6% higher power demand at 45W vs 35W.

Quick Answers

So, is Core i7-3820QM better than Core i5-6600T?

Yes. Core i7-3820QM is the better all-around CPU here. It gives you a 17.1% average FPS lead across 50 shared CPU game tests in our data and 0.8% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core i7-3820QM is the better pick. According to our tests, it delivers 17.1% 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 i7-3820QM is the stronger fit. You are getting 0.8% better PassMark, backed by 4 cores and 8 threads. It also has the larger cache pool with 33.3% larger total L3 cache (8 MB vs 6 MB).

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

Core i7-3820QM is still the much better call for a fresh build. Core i7-3820QM comes in at an unclear MSRP at unclear MSRP versus $213 MSRP, and it still gives you a 17.1% average FPS lead across 50 shared CPU game tests in our data. Core i5-6600T only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2015 platform. Even with 100.0% better value on paper (26.1 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on LGA1151.

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

Core i5-6600T makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2015 vs 2012). That makes it the safer long-term bet.

Core i5-6600T vs Core i7-3820QM Technical Specifications

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

Core i5-6600T

The Core i5-6600T is manufactured by Intel. It was released in 2 July 2015 (10 years ago). It is based on the Skylake (2015−2016) architecture. It features 4 cores and 4 threads. Base frequency is 2.7 GHz, with boost up to 3.5 GHz. L3 cache: 6 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 35 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 5,565 points. Launch price was $192.

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 i5-6600T packs 4 cores / 4 threads, matching the Core i7-3820QM's 4 cores. Boost clocks reach 3.5 GHz on the Core i5-6600T versus 3.7 GHz on the Core i7-3820QM — a 5.6% clock advantage for the Core i7-3820QM (base: 2.7 GHz vs 2.7 GHz). The Core i5-6600T uses the Skylake (2015−2016) architecture (14 nm), while the Core i7-3820QM uses Ivy Bridge (2012−2013) (22 nm). In PassMark, the Core i5-6600T scores 5,565 against the Core i7-3820QM's 5,607 — a 0.8% lead for the Core i7-3820QM. Geekbench 6 single-core — the metric most relevant to gaming — records 1,175 vs 604, a 64.2% lead for the Core i5-6600T that directly translates to higher frame rates. L3 cache: 6 MB (total) on the Core i5-6600T vs 8 MB (total) on the Core i7-3820QM.

Feature	Core i5-6600T	Core i7-3820QM
Cores / Threads	4 / 4	4 / 8
Boost Clock	3.5 GHz	3.7 GHz+6%
Base Clock	2.7 GHz	2.7 GHz
L3 Cache	6 MB (total)	8 MB (total)+33%
L2 Cache	256 kB (per core)	256K (per core)
Process	14 nm-36%	22 nm
Architecture	Skylake (2015−2016)	Ivy Bridge (2012−2013)
PassMark	5,565	5,607
Cinebench R23 Multi	7,083	—
Geekbench 6 Single	1,175+95%	604
Geekbench 6 Multi	3,212	—

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Memory & Platform

The Core i5-6600T uses the LGA1151 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 DDR4-2133 on the Core i5-6600T versus DDR3-1600 on the Core i7-3820QM — the Core i5-6600T supports 33.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-6600T supports up to 64 GB of RAM compared to 32 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: H110,B150,H170,Z170,Q150,Q170,B250,Q250,H270,Z270 (Core i5-6600T) and HM75,HM76,HM77,QM77,QS77 (Core i7-3820QM).

Feature	Core i5-6600T	Core i7-3820QM
Socket	LGA1151	PGA988
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR4-2133+33%	DDR3-1600
Max RAM Capacity	64 GB+100%	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 i5-6600T) vs VT-x, VT-d, EPT (Core i7-3820QM). Both include integrated graphics — HD Graphics 530 (Core i5-6600T) and HD Graphics 4000 (Core i7-3820QM) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i5-6600T targets Office, Core i7-3820QM targets High Performance Laptop. Direct competitor: Core i5-6600T rivals AMD Athlon II X4 640; Core i7-3820QM rivals A10-4600M.

Feature	Core i5-6600T	Core i7-3820QM
Integrated GPU	Yes	Yes
IGPU Model	HD Graphics 530	HD Graphics 4000
Unlocked	No	No
AVX-512	No	No
Virtualization	VT-x, VT-d	VT-x, VT-d, EPT
Target Use	Office	High Performance Laptop