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.

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 i7-2675QM

2011

Why buy it

✅+1.8% higher PassMark.
✅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

❌Worse for gaming: lower average FPS than Core i7-2840QM across 3 shared CPU benchmark tests.
❌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

✅Better for gaming: +11.2% higher average FPS across 3 shared CPU benchmark tests.
✅+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.

Core i7-2675QM

2011

Core i7-2840QM

2011

Why buy it

✅+1.8% higher PassMark.
✅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.

Why buy it

✅Better for gaming: +11.2% higher average FPS across 3 shared CPU benchmark tests.
✅+33.3% larger total L3 cache (8 MB vs 6 MB).

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-2840QM across 3 shared CPU benchmark tests.
❌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.

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?

It depends on what matters more to you. For gaming, Core i7-2840QM is ahead with a 11.2% average FPS lead across 3 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i7-2675QM pulls ahead with 1.8% better PassMark. Core i7-2840QM also has the bigger cache pool with 33.3% larger total L3 cache (8 MB vs 6 MB).

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

For streaming, content creation, and heavier multitasking, Core i7-2675QM is the better 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 smarter buy today. Core i7-2675QM is at an unclear MSRP at $378 MSRP versus unclear MSRP, and it gives you 1.8% better PassMark. The trade-off is that Core i7-2840QM is still the better pure gaming CPU with a 11.2% average FPS lead across 3 shared CPU game tests in our data. It is also 100.0% better value on MSRP (10.4 vs 0.0 PassMark/$), 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 i7-2675QM is the more future-proof choice for 2026 and beyond. You are getting more multi-core headroom with 4 cores / 8 threads instead of 4/8. 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 i7-2675QM Benchmark Check

Core i7-2840QM Benchmark Check

Path of Exile 2

Preset	Core i7-2675QM	Core i7-2840QM
1080p
low	98 FPS	96 FPS
medium	98 FPS	96 FPS
high	98 FPS	96 FPS
ultra	86 FPS	85 FPS
1440p
low	98 FPS	96 FPS
medium	98 FPS	96 FPS
high	88 FPS	87 FPS
ultra	71 FPS	70 FPS
4K
low	65 FPS	62 FPS
medium	59 FPS	56 FPS
high	45 FPS	43 FPS
ultra	36 FPS	34 FPS

Open Core i7-2675QM Open Core i7-2840QM

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i7-2675QM	Core i7-2840QM
1080p
low	98 FPS	96 FPS
medium	87 FPS	96 FPS
high	82 FPS	96 FPS
ultra	65 FPS	96 FPS
1440p
low	86 FPS	96 FPS
medium	75 FPS	96 FPS
high	71 FPS	96 FPS
ultra	59 FPS	91 FPS
4K
low	67 FPS	96 FPS
medium	61 FPS	96 FPS
high	48 FPS	75 FPS
ultra	35 FPS	53 FPS

Open Core i7-2675QM Open Core i7-2840QM

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i7-2675QM	Core i7-2840QM
1080p
low	98 FPS	96 FPS
medium	98 FPS	96 FPS
high	98 FPS	96 FPS
ultra	98 FPS	96 FPS
1440p
low	98 FPS	96 FPS
medium	98 FPS	96 FPS
high	98 FPS	96 FPS
ultra	98 FPS	96 FPS
4K
low	98 FPS	96 FPS
medium	98 FPS	96 FPS
high	98 FPS	96 FPS
ultra	98 FPS	96 FPS

Open Core i7-2675QM Open Core i7-2840QM

League of Legends

League of Legends

Valorant

Preset	Core i7-2675QM	Core i7-2840QM
1080p
low	98 FPS	96 FPS
medium	98 FPS	96 FPS
high	98 FPS	96 FPS
ultra	98 FPS	96 FPS
1440p
low	98 FPS	96 FPS
medium	98 FPS	96 FPS
high	98 FPS	96 FPS
ultra	98 FPS	96 FPS
4K
low	98 FPS	96 FPS
medium	98 FPS	96 FPS
high	98 FPS	96 FPS
ultra	98 FPS	96 FPS

Open Core i7-2675QM Open Core i7-2840QM

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i7-2675QM and Core i7-2840QM

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)	1 MB+300%
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.