Core i3-8145UE vs FX-8100

CPU

GPU

Core i3-8145UE

2 Cores4 Thrd15 WWMax: 3.9 GHz2018

Similar parts

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FX-8100

8 Cores8 Thrd95 WWMax: 3.7 GHz2011

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Core i3-8145UE vs FX-8100 Performance Spectrum

Core i3-8145UE

2 / 4

4,021

0.0%

4,095

+1.8%

Ryzen Threadripper 3990X

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 i3-8145UE vs FX-8100 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 i3-8145UE vs FX-8100: Pros, Cons & Final Verdict

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

Core i3-8145UE

2018

Why buy it

✅+45.3% higher Geekbench multi-core.
✅Costs $19 less on MSRP ($281 MSRP vs $300 MSRP).
✅Draws 15W instead of 95W, a 80W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with UHD 620, while FX-8100 needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than FX-8100 across 30 shared CPU benchmark tests.
❌Smaller total L3 cache (4 MB vs 8 MB).

FX-8100

2011

Why buy it

✅Better for gaming: +13.2% higher average FPS across 30 shared CPU benchmark tests.
✅+100% larger total L3 cache (8 MB vs 4 MB).

Trade-offs

❌Lower Geekbench multi-core (1,621 vs 2,356).
❌
6.8% HIGHER MSRP
$300 MSRPvs$281 MSRP
❌533.3% higher power demand at 95W vs 15W.
❌No integrated graphics, while Core i3-8145UE can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i3-8145UE better than FX-8100?

It depends on what you want from the system. For gaming, FX-8100 is ahead with a 13.2% average FPS lead across 30 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i3-8145UE pulls ahead with 45.3% better Geekbench multi-core. FX-8100 also has the bigger cache pool with 100% larger total L3 cache (8 MB vs 4 MB).

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

For streaming, content creation, and heavier multitasking, Core i3-8145UE is the stronger fit. You are getting 45.3% better Geekbench multi-core, backed by 2 cores and 4 threads.

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

Core i3-8145UE is the better buy right now. Core i3-8145UE comes in $19 cheaper on MSRP at $281 MSRP versus $300 MSRP, and it still gives you 45.3% better Geekbench multi-core. The compromise is that FX-8100 is still the better pure gaming CPU with a 13.2% average FPS lead across 30 shared CPU game tests in our data. It is also 4.8% better value on MSRP (14.3 vs 13.7 PassMark/$), 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 i3-8145UE makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2018 vs 2011) and more multi-core headroom with 2 cores / 4 threads instead of 8/8. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i3-8145UE vs FX-8100 Technical Specifications

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

Core i3-8145UE

The Core i3-8145UE 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 2 cores and 4 threads. Base frequency is 2.2 GHz, with boost up to 3.9 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 10 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 4,021 points. Launch price was $69.

FX-8100

The FX-8100 is manufactured by AMD. It was released in 12 October 2011 (14 years ago). It is based on the Zambezi (2011−2012) architecture. It features 8 cores and 8 threads. Base frequency is 2.8 GHz, with boost up to 3.7 GHz. L3 cache: 8 MB (total). L2 cache: 8 MB. Built on 32 nm process technology. Socket: AM3+. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 4,095 points. Launch price was $69.

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Processing Power

The Core i3-8145UE packs 2 cores / 4 threads, while the FX-8100 offers 8 cores / 8 threads — the FX-8100 has 6 more cores. Boost clocks reach 3.9 GHz on the Core i3-8145UE versus 3.7 GHz on the FX-8100 — a 5.3% clock advantage for the Core i3-8145UE (base: 2.2 GHz vs 2.8 GHz). The Core i3-8145UE uses the Whiskey Lake-U (2018−2019) architecture (10 nm), while the FX-8100 uses Zambezi (2011−2012) (32 nm). In PassMark, the Core i3-8145UE scores 4,021 against the FX-8100's 4,095 — a 1.8% lead for the FX-8100. Geekbench 6 single-core — the metric most relevant to gaming — records 1,218 vs 455, a 91.2% lead for the Core i3-8145UE that directly translates to higher frame rates. Multi-core Geekbench: 2,356 vs 1,621 (37% advantage for the Core i3-8145UE). L3 cache: 4 MB (total) on the Core i3-8145UE vs 8 MB (total) on the FX-8100.

Feature	Core i3-8145UE	FX-8100
Cores / Threads	2 / 4	8 / 8+300%
Boost Clock	3.9 GHz+5%	3.7 GHz
Base Clock	2.2 GHz	2.8 GHz+27%
L3 Cache	4 MB (total)	8 MB (total)+100%
L2 Cache	256 kB (per core)	8 MB+3100%
Process	10 nm-69%	32 nm
Architecture	Whiskey Lake-U (2018−2019)	Zambezi (2011−2012)
PassMark	4,021	4,095+2%
Cinebench R23 Multi	2,356	—
Geekbench 6 Single	1,218+168%	455
Geekbench 6 Multi	2,356+45%	1,621

🧠

Memory & Platform

The Core i3-8145UE uses the FCBGA1528 socket (PCIe 3.0), while the FX-8100 uses AM3+ (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2400 on the Core i3-8145UE versus DDR3-1866 on the FX-8100 — the Core i3-8145UE supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i3-8145UE 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. PCIe lanes: 16 (Core i3-8145UE) vs 0 (FX-8100) — the Core i3-8145UE offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Whiskey Lake (Core i3-8145UE) and AMD 990FX,AMD 970 (FX-8100).

Feature	Core i3-8145UE	FX-8100
Socket	FCBGA1528	AM3+
PCIe Generation	PCIe 3.0+50%	PCIe 2.0
Max RAM Speed	DDR4-2400+29%	DDR3-1866
Max RAM Capacity	64 GB+300%	16 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16	0

🔧

Advanced Features

Only the FX-8100 has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: VT-x, VT-d (Core i3-8145UE) vs AMD-V (FX-8100). The Core i3-8145UE includes integrated graphics (UHD 620), while the FX-8100 requires a dedicated GPU. Primary use case: Core i3-8145UE targets Budget. Direct competitor: Core i3-8145UE rivals Ryzen 3 3200U.

Feature	Core i3-8145UE	FX-8100
Integrated GPU	Yes	No
IGPU Model	UHD 620	—
Unlocked	No	Yes
AVX-512	No	No
Virtualization	VT-x, VT-d	AMD-V
Target Use	Budget	—

💰

Value Analysis

At launch, the Core i3-8145UE was priced at $281, while the FX-8100 came in at $300. On launch pricing ($281 vs $300), Core i3-8145UE was $19 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i3-8145UE delivers 14.3 pts/$ vs 13.7 pts/$ for the FX-8100 — making the Core i3-8145UE the 4.7% better value option.

Feature	Core i3-8145UE	FX-8100
MSRP	$281-6%	$300
Performance per Dollar	14.3+4%	13.7
Release Date	2018	2011

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