Core i7-7660U vs Xeon E3-1260L

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 i7-7660U vs Xeon E3-1260L 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 i7-7660U vs Xeon E3-1260L: Pros, Cons & Final Verdict

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

Core i7-7660U

2017

Why buy it

✅Draws 15W instead of 45W, a 30W reduction.
✅100+% more PCIe lanes (12 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Iris Plus 640, while Xeon E3-1260L needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E3-1260L across 50 shared CPU benchmark tests.
❌Lower PassMark (4,059 vs 4,076).
❌Smaller total L3 cache (4 MB vs 8 MB).
❌Less compelling for workstation-style loads than Xeon E3-1260L, which brings 4 cores / 8 threads.

Xeon E3-1260L

2011

Why buy it

✅Better for gaming: +12.4% higher average FPS across 50 shared CPU benchmark tests.
✅+100% larger total L3 cache (8 MB vs 4 MB).
✅Better for workstations and heavier parallel workloads: 4 cores / 8 threads.

Trade-offs

❌Launch MSRP is still $294 MSRP, while Core i7-7660U mostly shows up through inconsistent older-market listings.
❌200% higher power demand at 45W vs 15W.
❌No integrated graphics, while Core i7-7660U can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Xeon E3-1260L better than Core i7-7660U?

Not really, because they are built for different jobs. Xeon E3-1260L makes more sense for workstation-style multi-core throughput, while Core i7-7660U is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Xeon E3-1260L is the better pick. According to our tests, it delivers 12.4% 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, Xeon E3-1260L is the stronger fit. You are getting 0.4% better PassMark, backed by 4 cores and 8 threads. It also has the larger cache pool with 100% larger total L3 cache (8 MB vs 4 MB).

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

Xeon E3-1260L is the better buy right now. Xeon E3-1260L comes in at an unclear MSRP at $294 MSRP versus unclear MSRP, and it still gives you a 12.4% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (13.9 vs 0.0 PassMark/$), 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 i7-7660U vs Xeon E3-1260L Technical Specifications

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

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.

Xeon E3-1260L

The Xeon E3-1260L is manufactured by Intel. It was released in 3 April 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 4 cores and 8 threads. Base frequency is 2.4 GHz, with boost up to 3.3 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 45 Watt. Memory support: DDR3. Passmark benchmark score: 4,076 points. Launch price was $150.

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Processing Power

The Core i7-7660U packs 2 cores / 4 threads, while the Xeon E3-1260L offers 4 cores / 8 threads — the Xeon E3-1260L has 2 more cores. Boost clocks reach 4 GHz on the Core i7-7660U versus 3.3 GHz on the Xeon E3-1260L — a 19.2% clock advantage for the Core i7-7660U (base: 2.5 GHz vs 2.4 GHz). The Core i7-7660U uses the Kaby Lake (2016−2019) architecture (14 nm), while the Xeon E3-1260L uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Core i7-7660U scores 4,059 against the Xeon E3-1260L's 4,076 — a 0.4% lead for the Xeon E3-1260L. L3 cache: 4 MB on the Core i7-7660U vs 8 MB (total) on the Xeon E3-1260L.

Feature	Core i7-7660U	Xeon E3-1260L
Cores / Threads	2 / 4	4 / 8+100%
Boost Clock	4 GHz+21%	3.3 GHz
Base Clock	2.5 GHz+4%	2.4 GHz
L3 Cache	4 MB	8 MB (total)+100%
L2 Cache	512 kB+100%	256 kB (per core)
Process	14 nm-56%	32 nm
Architecture	Kaby Lake (2016−2019)	Sandy Bridge (2011−2013)
PassMark	4,059	4,076
Cinebench R23 Multi	1,759	—
Geekbench 6 Single	1,150	—
Geekbench 6 Multi	2,285	—

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Memory & Platform

The Core i7-7660U uses the BGA1356 socket (PCIe 3.0), while the Xeon E3-1260L uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Core i7-7660U	Xeon E3-1260L
Socket	BGA1356	LGA1155
PCIe Generation	PCIe 3.0+50%	PCIe 2.0
Max RAM Speed	DDR4-2133	—
Max RAM Capacity	32 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	12	—

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Advanced Features

Virtualization: VT-x, VT-d (Core i7-7660U) / not specified (Xeon E3-1260L). The Core i7-7660U includes integrated graphics (Iris Plus 640), while the Xeon E3-1260L requires a dedicated GPU. Primary use case: Core i7-7660U targets Productivity. Direct competitor: Core i7-7660U rivals Core i5-8250U.