Core i7-2635QM vs Core i7-6650U

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 i7-2635QM vs Core i7-6650U 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 i7-2635QM vs Core i7-6650U: Pros, Cons & Final Verdict

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

Core i7-2635QM

2011

Why buy it

✅Better for gaming: +13.2% higher average FPS across 50 shared CPU benchmark tests.
✅+50% larger total L3 cache (6 MB vs 4 MB).
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with HD Graphics 3000, while Core i7-6650U needs a discrete GPU.

Trade-offs

❌Lower PassMark (3,541 vs 3,557).
❌Launch MSRP is still $378 MSRP, while Core i7-6650U mostly shows up through inconsistent older-market listings.
❌200% higher power demand at 45W vs 15W.

Core i7-6650U

2015

Why buy it

✅+0.5% higher PassMark.
✅Draws 15W instead of 45W, a 30W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-2635QM across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (4 MB vs 6 MB).
❌No integrated graphics, while Core i7-2635QM can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i7-6650U better than Core i7-2635QM?

It depends on what you want from the system. For gaming, Core i7-2635QM is ahead with a 13.2% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i7-6650U pulls ahead with 0.5% better PassMark. Core i7-2635QM also has the bigger cache pool with 50% larger total L3 cache (6 MB vs 4 MB).

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

For streaming, content creation, and heavier multitasking, Core i7-6650U is the stronger fit. You are getting 0.5% better PassMark, backed by 2 cores and 4 threads.

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

Core i7-6650U is the easy recommendation for a fresh desktop build. Core i7-6650U comes in at an unclear MSRP at unclear MSRP versus $378 MSRP, and it still gives you 0.5% better PassMark. Core i7-2635QM only looks good on raw value math because it is a cheap legacy laptop chip, not because it is a real desktop gaming recommendation. It simply does not keep up in modern games.

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

Core i7-6650U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2015 vs 2011) and more multi-core headroom with 2 cores / 4 threads instead of 4/8. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i7-2635QM vs Core i7-6650U Technical Specifications

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

Core i7-2635QM

The Core i7-2635QM is manufactured by Intel. It was released in 3 January 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 GHz, with boost up to 2.9 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: 3,541 points. Launch price was $378.

Core i7-6650U

The Core i7-6650U is manufactured by Intel. It was released in 1 September 2015 (10 years ago). It is based on the Skylake (2015−2016) architecture. It features 2 cores and 4 threads. Base frequency is 2.2 GHz, with boost up to 3.4 GHz. L3 cache: 4 MB. L2 cache: 512 kB. Built on 14 nm process technology. Socket: BGA1356. Thermal design power (TDP): 15 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 3,557 points. Launch price was $415.

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Processing Power

The Core i7-2635QM packs 4 cores / 8 threads, while the Core i7-6650U offers 2 cores / 4 threads — the Core i7-2635QM has 2 more cores. Boost clocks reach 2.9 GHz on the Core i7-2635QM versus 3.4 GHz on the Core i7-6650U — a 15.9% clock advantage for the Core i7-6650U (base: 2 GHz vs 2.2 GHz). The Core i7-2635QM uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Core i7-6650U uses Skylake (2015−2016) (14 nm). In PassMark, the Core i7-2635QM scores 3,541 against the Core i7-6650U's 3,557 — a 0.5% lead for the Core i7-6650U. L3 cache: 6 MB (total) on the Core i7-2635QM vs 4 MB on the Core i7-6650U.

Feature	Core i7-2635QM	Core i7-6650U
Cores / Threads	4 / 8+100%	2 / 4
Boost Clock	2.9 GHz	3.4 GHz+17%
Base Clock	2 GHz	2.2 GHz+10%
L3 Cache	6 MB (total)+50%	4 MB
L2 Cache	256K (per core)	512 kB+100%
Process	32 nm	14 nm-56%
Architecture	Sandy Bridge (2011−2013)	Skylake (2015−2016)
PassMark	3,541	3,557

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Memory & Platform

The Core i7-2635QM uses the FCBGA1224 socket (PCIe 2.0), while the Core i7-6650U uses BGA1356 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i7-2635QM	Core i7-6650U
Socket	FCBGA1224	BGA1356
PCIe Generation	PCIe 2.0	PCIe 3.0+50%
Max RAM Speed	DDR3-1333	—
Max RAM Capacity	16 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

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Advanced Features

Virtualization: VT-x (Core i7-2635QM) / not specified (Core i7-6650U). The Core i7-2635QM includes integrated graphics (HD Graphics 3000), while the Core i7-6650U requires a dedicated GPU. Primary use case: Core i7-2635QM targets Mobile.