Core i7-3612QE vs Core i7-8665UE

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 i7-3612QE vs Core i7-8665UE 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 i7-3612QE vs Core i7-8665UE: Pros, Cons & Final Verdict

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

Core i7-3612QE

2012

Why buy it

✅+1.6% higher PassMark.

Trade-offs

❌Smaller total L3 cache (6 MB vs 8 MB).
❌
4.2% HIGHER MSRP
$426 MSRPvs$409 MSRP
❌133.3% higher power demand at 35W vs 15W.

Core i7-8665UE

2018

Why buy it

✅+33.3% larger total L3 cache (8 MB vs 6 MB).
✅Costs $17 less on MSRP ($409 MSRP vs $426 MSRP).
✅Draws 15W instead of 35W, a 20W reduction.

Trade-offs

❌Lower PassMark (4,852 vs 4,929).

Quick Answers

So, is Core i7-8665UE better than Core i7-3612QE?

It depends on what you want from the system. For gaming, Core i7-8665UE is ahead with a 2.5% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i7-3612QE pulls ahead with 1.6% better PassMark. Core i7-8665UE 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 i7-3612QE is the stronger fit. You are getting 1.6% better PassMark, backed by 4 cores and 8 threads.

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

Core i7-8665UE is the better buy right now. Core i7-8665UE comes in $17 cheaper on MSRP at $409 MSRP versus $426 MSRP, and it still gives you a 2.5% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Core i7-3612QE is still stronger for heavier multi-core work with 1.6% better PassMark. It is also 2.5% better value on MSRP (11.9 vs 11.6 PassMark/$), 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 i7-8665UE makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2018 vs 2012) and 33.3% larger total L3 cache (8 MB vs 6 MB). That makes it the safer long-term bet.

Core i7-3612QE vs Core i7-8665UE Technical Specifications

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

Core i7-3612QE

The Core i7-3612QE is manufactured by Intel. It was released in 29 April 2012 (13 years ago). It is based on the Ivy Bridge (2012−2013) architecture. It features 4 cores and 8 threads. Base frequency is 2.1 GHz, with boost up to 3.1 GHz. L3 cache: 6144 kB (total). L2 cache: 256 kB (per core). Built on 22 nm process technology. Socket: BGA1023. Thermal design power (TDP): 35 Watt. Memory support: unknown Dual-channel. Passmark benchmark score: 4,929 points. Launch price was $69.

Core i7-8665UE

The Core i7-8665UE is manufactured by Intel. It was released in 1 October 2018 (7 years ago). It is based on the Whiskey Lake-U (2018−2019) architecture. It features 4 cores and 8 threads. Base frequency is 1.7 GHz, with boost up to 4.4 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 4,852 points. Launch price was $409.

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Processing Power

Both the Core i7-3612QE and Core i7-8665UE share an identical 4-core/8-thread configuration. Boost clocks reach 3.1 GHz on the Core i7-3612QE versus 4.4 GHz on the Core i7-8665UE — a 34.7% clock advantage for the Core i7-8665UE (base: 2.1 GHz vs 1.7 GHz). The Core i7-3612QE uses the Ivy Bridge (2012−2013) architecture (22 nm), while the Core i7-8665UE uses Whiskey Lake-U (2018−2019) (14 nm). In PassMark, the Core i7-3612QE scores 4,929 against the Core i7-8665UE's 4,852 — a 1.6% lead for the Core i7-3612QE. L3 cache: 6144 kB (total) on the Core i7-3612QE vs 8 MB (total) on the Core i7-8665UE.

Feature	Core i7-3612QE	Core i7-8665UE
Cores / Threads	4 / 8	4 / 8
Boost Clock	3.1 GHz	4.4 GHz+42%
Base Clock	2.1 GHz+24%	1.7 GHz
L3 Cache	6144 kB (total)	8 MB (total)+33%
L2 Cache	256 kB (per core)	256 kB (per core)
Process	22 nm	14 nm-36%
Architecture	Ivy Bridge (2012−2013)	Whiskey Lake-U (2018−2019)
PassMark	4,929+2%	4,852
Geekbench 6 Single	640	—
Geekbench 6 Multi	2,200	—

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Memory & Platform

The Core i7-3612QE uses the BGA1023 socket (PCIe 3.0), while the Core i7-8665UE uses FCBGA1528 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1600 on the Core i7-3612QE versus DDR4-2400 on the Core i7-8665UE — the Core i7-8665UE supports 50% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i7-8665UE supports up to 64 GB of RAM compared to 16 GB — 300% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes.

Feature	Core i7-3612QE	Core i7-8665UE
Socket	BGA1023	FCBGA1528
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR3-1600	DDR4-2400+50%
Max RAM Capacity	16 GB	64 GB+300%
RAM Channels	2	2
ECC Support	Yes	No
PCIe Lanes	16	16

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Advanced Features

Neither processor supports overclocking. Both support VT-x, VT-d virtualization. Both include integrated graphics — Intel HD Graphics 4000 (Core i7-3612QE) and UHD Graphics 620 (Core i7-8665UE) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i7-3612QE targets Industrial/Embedded, Core i7-8665UE targets Embedded.

Feature	Core i7-3612QE	Core i7-8665UE
Integrated GPU	Yes	Yes
IGPU Model	Intel HD Graphics 4000	UHD Graphics 620
Unlocked	No	No
AVX-512	No	No
Virtualization	VT-x, VT-d	VT-x, VT-d
Target Use	Industrial/Embedded	Embedded

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Value Analysis

At launch, the Core i7-3612QE was priced at $426, while the Core i7-8665UE came in at $409. On launch pricing ($426 vs $409), Core i7-8665UE was $17 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i7-3612QE delivers 11.6 pts/$ vs 11.9 pts/$ for the Core i7-8665UE — making the Core i7-8665UE the 2.5% better value option.

Feature	Core i7-3612QE	Core i7-8665UE
MSRP	$426	$409-4%
Performance per Dollar	11.6	11.9+3%
Release Date	2012	2018

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