Core i7-8665U vs FX-8370

Core i7-8665U vs FX-8370 Performance Spectrum

Core i7-8665U

4 / 8

6,202

+0.3%

6,184

0.0%

Ryzen Threadripper PRO 7965WX

About PassMark

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 i7-8665U vs FX-8370 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 i7-8665U vs FX-8370: Pros, Cons & Final Verdict

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

Core i7-8665U

2019

Why buy it

✅+0.3% higher PassMark.
✅Draws 15W instead of 125W, a 110W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than FX-8370 across 50 shared CPU benchmark tests.
❌No boxed cooler included, unlike FX-8370.

FX-8370

2014

Why buy it

✅Better for gaming: +8.3% higher average FPS across 50 shared CPU benchmark tests.
✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Stock Cooler), unlike Core i7-8665U.

Trade-offs

❌Lower PassMark (6,184 vs 6,202).
❌Launch MSRP is still $199 MSRP, while Core i7-8665U mostly shows up through inconsistent older-market listings.
❌733.3% higher power demand at 125W vs 15W.

Quick Answers

So, is Core i7-8665U better than FX-8370?

It depends on what you want from the system. For gaming, FX-8370 is ahead with a 8.3% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i7-8665U pulls ahead with 0.3% better PassMark.

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

For streaming, content creation, and heavier multitasking, Core i7-8665U is the stronger fit. You are getting 0.3% better PassMark, backed by 4 cores and 8 threads.

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

Core i7-8665U is still the much better call for a fresh build. Core i7-8665U comes in at an unclear MSRP at unclear MSRP versus $199 MSRP, and it still gives you 0.3% better PassMark. FX-8370 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2014 platform. Even with 100.0% better value on paper (31.1 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on AM3+.

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

Core i7-8665U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2019 vs 2014) and more multi-core headroom with 4 cores / 8 threads instead of 8/8. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i7-8665U vs FX-8370 Technical Specifications

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

Core i7-8665U

The Core i7-8665U 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 1.9 GHz, with boost up to 4.8 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: DDR4. Passmark benchmark score: 6,202 points. Launch price was $409.

FX-8370

The FX-8370 is manufactured by AMD. It was released in 2 September 2014 (11 years ago). It is based on the Vishera (2012−2015) architecture. It features 8 cores and 8 threads. Base frequency is 4 GHz, with boost up to 4.3 GHz. L2 cache: 8192 kB. Built on 32 nm process technology. Socket: AM3+. Thermal design power (TDP): 125 Watt. Memory support: DDR3. Passmark benchmark score: 6,184 points. Launch price was $199.

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Processing Power

The Core i7-8665U packs 4 cores / 8 threads, while the FX-8370 offers 8 cores / 8 threads — the FX-8370 has 4 more cores. Boost clocks reach 4.8 GHz on the Core i7-8665U versus 4.3 GHz on the FX-8370 — a 11% clock advantage for the Core i7-8665U (base: 1.9 GHz vs 4 GHz). The Core i7-8665U uses the Whiskey Lake-U (2018−2019) architecture (14 nm), while the FX-8370 uses Vishera (2012−2015) (32 nm). In PassMark, the Core i7-8665U scores 6,202 against the FX-8370's 6,184 — a 0.3% lead for the Core i7-8665U.

Feature	Core i7-8665U	FX-8370
Cores / Threads	4 / 8	8 / 8+100%
Boost Clock	4.8 GHz+12%	4.3 GHz
Base Clock	1.9 GHz	4 GHz+111%
L3 Cache	8 MB (total)	—
L2 Cache	256 kB (per core)	8192 kB+3100%
Process	14 nm-56%	32 nm
Architecture	Whiskey Lake-U (2018−2019)	Vishera (2012−2015)
PassMark	6,202	6,184
Cinebench R23 Multi	—	3,800
Geekbench 6 Single	—	520
Geekbench 6 Multi	—	2,050

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Memory & Platform

The Core i7-8665U uses the FCBGA1528 socket (PCIe 3.0), while the FX-8370 uses AM3+ (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Core i7-8665U	FX-8370
Socket	FCBGA1528	AM3+
PCIe Generation	PCIe 3.0+50%	PCIe 2.0
Max RAM Speed	—	DDR3-1866
Max RAM Capacity	—	32 GB
RAM Channels	—	2
ECC Support	—	No
PCIe Lanes	—	20

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Advanced Features

Virtualization: not specified (Core i7-8665U) / AMD-V (FX-8370). Primary use case: FX-8370 targets Legacy Gaming. Direct competitor: FX-8370 rivals Core i5-6400.