Core i7-2675QM vs Core i7-2840QM

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 i7-2675QM vs Core i7-2840QM 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 i7-2675QM vs Core i7-2840QM: Pros, Cons & Final Verdict

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

Core i7-2675QM

2011

Why buy it

✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with HD Graphics 3000, while Core i7-2840QM needs a discrete GPU.

Trade-offs

❌Smaller total L3 cache (6 MB vs 8 MB).
❌Launch MSRP is still $378 MSRP, while Core i7-2840QM mostly shows up through inconsistent older-market listings.

Core i7-2840QM

2011

Why buy it

✅+33.3% larger total L3 cache (8 MB vs 6 MB).

Trade-offs

❌Lower PassMark (3,842 vs 3,913).
❌No integrated graphics, while Core i7-2675QM can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i7-2675QM better than Core i7-2840QM?

Yes. Core i7-2675QM is the better all-around CPU here. It gives you a 2.0% average FPS lead across 50 shared CPU game tests in our data, 1.8% 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 i7-2675QM is the better pick. According to our tests, it delivers 2.0% 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 i7-2675QM is the stronger fit. You are getting 1.8% better PassMark, backed by 4 cores and 8 threads.

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

Core i7-2675QM is the better buy right now. Core i7-2675QM comes in at an unclear MSRP at $378 MSRP versus unclear MSRP, and it still gives you a 2.0% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (10.4 vs 0.0 PassMark/$), 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 i7-2675QM makes more sense long term for 2026 and beyond. You are getting more multi-core headroom with 4 cores / 8 threads instead of 4/8. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i7-2675QM vs Core i7-2840QM Technical Specifications

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

Core i7-2675QM

The Core i7-2675QM is manufactured by Intel. It was released in 12 October 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 4 cores and 8 threads. Base frequency is 2.2 GHz, with boost up to 3.1 GHz. L3 cache: 6 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: FCBGA1224. Thermal design power (TDP): 45 Watt. Memory support: DDR3-1066, DDR3-1333. Passmark benchmark score: 3,913 points. Launch price was $378.

Core i7-2840QM

The Core i7-2840QM is manufactured by Intel. It was released in 4 September 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 4 cores and 8 threads. Max frequency: 2.4 GHz. L3 cache: 8 MB. L2 cache: 1 MB. Built on 32 nm process technology. Socket: G2. Thermal design power (TDP): 45 Watt. Passmark benchmark score: 3,842 points. Launch price was $69.

⚡

Processing Power

Both the Core i7-2675QM and Core i7-2840QM share an identical 4-core/8-thread configuration. Boost clocks reach 3.1 GHz on the Core i7-2675QM versus 2.4 GHz on the Core i7-2840QM — a 25.5% clock advantage for the Core i7-2675QM. Both are built on the Sandy Bridge (2011−2013) architecture using a 32 nm process. In PassMark, the Core i7-2675QM scores 3,913 against the Core i7-2840QM's 3,842 — a 1.8% lead for the Core i7-2675QM. L3 cache: 6 MB (total) on the Core i7-2675QM vs 8 MB on the Core i7-2840QM.

Feature	Core i7-2675QM	Core i7-2840QM
Cores / Threads	4 / 8	4 / 8
Boost Clock	3.1 GHz+29%	2.4 GHz
Base Clock	2.2 GHz	—
L3 Cache	6 MB (total)	8 MB+33%
L2 Cache	256K (per core)+25500%	1 MB
Process	32 nm	32 nm
Architecture	Sandy Bridge (2011−2013)	Sandy Bridge (2011−2013)
PassMark	3,913+2%	3,842

🧠

Memory & Platform

The Core i7-2675QM uses the FCBGA1224 socket (PCIe 2.0), while the Core i7-2840QM uses G2 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Core i7-2675QM	Core i7-2840QM
Socket	FCBGA1224	G2
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	DDR3-1333	—
Max RAM Capacity	16 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

🔧

Advanced Features

Virtualization: VT-x (Core i7-2675QM) / not specified (Core i7-2840QM). The Core i7-2675QM includes integrated graphics (HD Graphics 3000), while the Core i7-2840QM requires a dedicated GPU. Primary use case: Core i7-2675QM targets Mobile.