Core i5-2500 vs Core i7-7660U

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 i5-2500 vs Core i7-7660U 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 i5-2500 vs Core i7-7660U: Pros, Cons & Final Verdict

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

Core i5-2500

2011

Why buy it

✅Better for gaming: +3.9% higher average FPS across 50 shared CPU benchmark tests.
✅+50% larger total L3 cache (6 MB vs 4 MB).
✅33.3% more PCIe lanes (16 vs 12) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Intel Stock), unlike Core i7-7660U.

Trade-offs

❌Launch MSRP is still $294 MSRP, while Core i7-7660U mostly shows up through inconsistent older-market listings.
❌533.3% higher power demand at 95W vs 15W.

Core i7-7660U

2017

Why buy it

✅Draws 15W instead of 95W, a 80W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-2500 across 50 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (1,759 vs 2,642).
❌Smaller total L3 cache (4 MB vs 6 MB).
❌No boxed cooler included, unlike Core i5-2500.

Quick Answers

So, is Core i5-2500 better than Core i7-7660U?

Yes. Core i5-2500 is the better all-around CPU here. It gives you a 3.9% average FPS lead across 50 shared CPU game tests in our data, 50.2% better Cinebench R23 multi-core, and 1.1% higher PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core i5-2500 is the better pick. According to our tests, it delivers 3.9% 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 i5-2500 is the stronger fit. You are getting 50.2% better Cinebench R23 multi-core, backed by 4 cores and 4 threads. It also has the larger cache pool with 50% larger total L3 cache (6 MB vs 4 MB).

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

Core i5-2500 is the better buy right now. Core i5-2500 comes in at an unclear MSRP at $294 MSRP versus unclear MSRP, and it still gives you a 3.9% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (14.0 vs 0.0 PassMark/$), 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 i7-7660U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2017 vs 2011). That makes it the safer long-term bet.

Core i5-2500 vs Core i7-7660U Technical Specifications

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

Core i5-2500

The Core i5-2500 is manufactured by Intel. It was released in 9 January 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 4 cores and 4 threads. Base frequency is 3.3 GHz, with boost up to 3.7 GHz. L3 cache: 6144 kB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 4,102 points. Launch price was $85.

Core i7-7660U

The Core i7-7660U is manufactured by Intel. It was released in 3 January 2017 (8 years ago). It is based on the Kaby Lake (2016−2019) architecture. It features 2 cores and 4 threads. Base frequency is 2.5 GHz, with boost up to 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: DDR4. Passmark benchmark score: 4,059 points. Launch price was $415.

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Processing Power

The Core i5-2500 packs 4 cores / 4 threads, while the Core i7-7660U offers 2 cores / 4 threads — the Core i5-2500 has 2 more cores. Boost clocks reach 3.7 GHz on the Core i5-2500 versus 4 GHz on the Core i7-7660U — a 7.8% clock advantage for the Core i7-7660U (base: 3.3 GHz vs 2.5 GHz). The Core i5-2500 uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Core i7-7660U uses Kaby Lake (2016−2019) (14 nm). In PassMark, the Core i5-2500 scores 4,102 against the Core i7-7660U's 4,059 — a 1.1% lead for the Core i5-2500. Cinebench R23 multi-core: 2,642 vs 1,759 (40.1% advantage for the Core i5-2500). Geekbench 6 single-core — the metric most relevant to gaming — records 590 vs 1,150, a 64.4% lead for the Core i7-7660U that directly translates to higher frame rates. Multi-core Geekbench: 1,690 vs 2,285 (29.9% advantage for the Core i7-7660U). L3 cache: 6144 kB (total) on the Core i5-2500 vs 4 MB on the Core i7-7660U.

Feature	Core i5-2500	Core i7-7660U
Cores / Threads	4 / 4+100%	2 / 4
Boost Clock	3.7 GHz	4 GHz+8%
Base Clock	3.3 GHz+32%	2.5 GHz
L3 Cache	6144 kB (total)+50%	4 MB
L2 Cache	256 kB (per core)	512 kB+100%
Process	32 nm	14 nm-56%
Architecture	Sandy Bridge (2011−2013)	Kaby Lake (2016−2019)
PassMark	4,102+1%	4,059
Cinebench R23 Multi	2,642+50%	1,759
Geekbench 6 Single	590	1,150+95%
Geekbench 6 Multi	1,690	2,285+35%

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Memory & Platform

The Core i5-2500 uses the LGA1155 socket (PCIe 2.0), while the Core i7-7660U uses BGA1356 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1333 on the Core i5-2500 versus DDR4-2133 on the Core i7-7660U — the Core i7-7660U supports 60% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 32 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core i5-2500) vs 12 (Core i7-7660U) — the Core i5-2500 offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H61,H67,P67,Z68,B75,Z77 (Core i5-2500) and SoC (Core i7-7660U).

Feature	Core i5-2500	Core i7-7660U
Socket	LGA1155	BGA1356
PCIe Generation	PCIe 2.0	PCIe 3.0+50%
Max RAM Speed	DDR3-1333	DDR4-2133+60%
Max RAM Capacity	32 GB	32 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16+33%	12

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Advanced Features

Neither processor supports overclocking. Virtualization support: VT-x, VT-d, EPT (Core i5-2500) vs VT-x, VT-d (Core i7-7660U). Both include integrated graphics — Intel HD Graphics 2000 (Core i5-2500) and Iris Plus 640 (Core i7-7660U) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i5-2500 targets Desktop, Core i7-7660U targets Productivity. Direct competitor: Core i7-7660U rivals Core i5-8250U.

Feature	Core i5-2500	Core i7-7660U
Integrated GPU	Yes	Yes
IGPU Model	Intel HD Graphics 2000	Iris Plus 640
Unlocked	No	No
AVX-512	No	No
Virtualization	VT-x, VT-d, EPT	VT-x, VT-d
Target Use	Desktop	Productivity