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 i5-3570 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 i5-3570 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 i5-3570

2012

Why buy it

✅+1.6% higher PassMark.
✅Costs $215 less on MSRP ($194 MSRP vs $409 MSRP).
✅Delivers 114.3% more PassMark for each dollar spent, at 25.4 vs 11.9 PassMark/$ ($194 MSRP vs $409 MSRP).
✅Includes a boxed cooler (Yes), unlike Core i7-8665UE.

Trade-offs

❌Worse for gaming: lower average FPS than Core i7-8665UE across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (6 MB vs 8 MB).
❌413.3% higher power demand at 77W vs 15W.

Core i7-8665UE

2018

Why buy it

✅Better for gaming: +12.1% higher average FPS across 50 shared CPU benchmark tests.
✅+33.3% larger total L3 cache (8 MB vs 6 MB).
✅Draws 15W instead of 77W, a 62W reduction.

Trade-offs

❌Lower PassMark (4,852 vs 4,932).
❌Lower PassMark per dollar, at 11.9 vs 25.4 PassMark/$ ($409 MSRP vs $194 MSRP).
❌No boxed cooler included, unlike Core i5-3570.

Quick Answers

So, is Core i7-8665UE better than Core i5-3570?

It depends on what you want from the system. For gaming, Core i7-8665UE is ahead with a 12.1% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i5-3570 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 i5-3570 is the stronger fit. You are getting 1.6% better PassMark, backed by 4 cores and 4 threads.

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

Core i7-8665UE is still the much better call for a fresh build. Core i7-8665UE comes in 110.8% more expensive on MSRP at $409 MSRP versus $194 MSRP, and it still gives you a 12.1% average FPS lead across 50 shared CPU game tests in our data. Core i5-3570 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2012 platform. Even with 114.3% better value on paper (25.4 vs 11.9 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on LGA1155.

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 i5-3570 vs Core i7-8665UE Technical Specifications

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

Core i5-3570

The Core i5-3570 is manufactured by Intel. It was released in 1 June 2012 (13 years ago). It is based on the Ivy Bridge (2012−2013) architecture. It features 4 cores and 4 threads. Base frequency is 3.4 GHz, with boost up to 3.8 GHz. L3 cache: 6 MB (total). L2 cache: 256 kB (per core). Built on 22 nm process technology. Socket: LGA1155. Thermal design power (TDP): 77 Watt. Memory support: DDR3. Passmark benchmark score: 4,932 points. Launch price was $231.

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

The Core i5-3570 packs 4 cores / 4 threads, matching the Core i7-8665UE's 4 cores. Boost clocks reach 3.8 GHz on the Core i5-3570 versus 4.4 GHz on the Core i7-8665UE — a 14.6% clock advantage for the Core i7-8665UE (base: 3.4 GHz vs 1.7 GHz). The Core i5-3570 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 i5-3570 scores 4,932 against the Core i7-8665UE's 4,852 — a 1.6% lead for the Core i5-3570. L3 cache: 6 MB (total) on the Core i5-3570 vs 8 MB (total) on the Core i7-8665UE.

Feature	Core i5-3570	Core i7-8665UE
Cores / Threads	4 / 4	4 / 8
Boost Clock	3.8 GHz	4.4 GHz+16%
Base Clock	3.4 GHz+100%	1.7 GHz
L3 Cache	6 MB (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	4,932+2%	4,852
Cinebench R23 Multi	2,780	—
Geekbench 6 Single	741	—
Geekbench 6 Multi	2,246	—

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Memory & Platform

The Core i5-3570 uses the LGA1155 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 i5-3570 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 32 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes.

Feature	Core i5-3570	Core i7-8665UE
Socket	LGA1155	FCBGA1528
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR3-1600	DDR4-2400+50%
Max RAM Capacity	32 GB	64 GB+100%
RAM Channels	2	2
ECC Support	No	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 — HD 2500 (Core i5-3570) and UHD Graphics 620 (Core i7-8665UE) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i5-3570 targets Budget, Core i7-8665UE targets Embedded. Direct competitor: Core i5-3570 rivals Ryzen 3 1200.

Feature	Core i5-3570	Core i7-8665UE
Integrated GPU	Yes	Yes
IGPU Model	HD 2500	UHD Graphics 620
Unlocked	No	No
AVX-512	No	No
Virtualization	VT-x, VT-d	VT-x, VT-d
Target Use	Budget	Embedded

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Value Analysis

At launch, the Core i5-3570 was priced at $194, while the Core i7-8665UE came in at $409. On launch pricing ($194 vs $409), Core i5-3570 was $215 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-3570 delivers 25.4 pts/$ vs 11.9 pts/$ for the Core i7-8665UE — making the Core i5-3570 the 72.7% better value option.

Feature	Core i5-3570	Core i7-8665UE
MSRP	$194-53%	$409
Performance per Dollar	25.4+113%	11.9
Release Date	2012	2018

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