Core i3-1125G4 vs Ryzen 5 3400G

Core i3-1125G4 vs Ryzen 5 3400G Performance Spectrum

Core i3-1125G4

4 / 8

9,284

+0.9%

9,201

0.0%

Ryzen Threadripper PRO 3995WX

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 i3-1125G4 vs Ryzen 5 3400G 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 i3-1125G4 vs Ryzen 5 3400G: Pros, Cons & Final Verdict

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

Core i3-1125G4

2021

Why buy it

✅+0.9% higher PassMark.
✅+100% larger total L3 cache (8 MB vs 4 MB).
✅Draws 15W instead of 65W, a 50W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with UHD Graphics (48 EU), while Ryzen 5 3400G needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 5 3400G across 50 shared CPU benchmark tests.

Ryzen 5 3400G

2019

Why buy it

✅Better for gaming: +23.4% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌Lower PassMark (9,201 vs 9,284).
❌Smaller total L3 cache (4 MB vs 8 MB).
❌Launch MSRP is still $149 MSRP, while Core i3-1125G4 mostly shows up through inconsistent older-market listings.
❌333.3% higher power demand at 65W vs 15W.
❌No integrated graphics, while Core i3-1125G4 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i3-1125G4 better than Ryzen 5 3400G?

It depends on what you want from the system. For gaming, Ryzen 5 3400G is ahead with a 23.4% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i3-1125G4 pulls ahead with 0.9% better PassMark. Core i3-1125G4 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 i3-1125G4 is the stronger fit. You are getting 0.9% 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?

Core i3-1125G4 is still the better call for a fresh build. Core i3-1125G4 comes in at an unclear MSRP at unclear MSRP versus $149 MSRP, and it still gives you 0.9% better PassMark. Ryzen 5 3400G only looks stronger on raw value math because it is so cheap, but its absolute performance tier is too low to be the better recommendation now. At roughly 9,201 PassMark with 4 cores and 8 threads, it only really makes sense as a bare-minimum stopgap or a very constrained existing-platform upgrade.

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

Core i3-1125G4 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2021 vs 2019), 100% larger total L3 cache (8 MB vs 4 MB), and more multi-core headroom with 4 cores / 8 threads instead of 4/8. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i3-1125G4 vs Ryzen 5 3400G Technical Specifications

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

Core i3-1125G4

The Core i3-1125G4 is manufactured by Intel. It was released in 31 March 2021 (4 years ago). It is based on the Tiger Lake-UP3 (2020−2021) architecture. It features 4 cores and 8 threads. Base frequency is 2 GHz, with boost up to 3.7 GHz. L3 cache: 8 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm SuperFin process technology. Socket: FCBGA1449. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 9,284 points. Launch price was $281.

Ryzen 5 3400G

The Ryzen 5 3400G is manufactured by AMD. It was released in 7 July 2019 (6 years ago). It is based on the Picasso (2019−2022) architecture. It features 4 cores and 8 threads. Base frequency is 3.7 GHz, with boost up to 4.2 GHz. L3 cache: 4 MB (total). L2 cache: 512K (per core). Built on 12 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4-2933. Passmark benchmark score: 9,201 points. Launch price was $149.

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Processing Power

Both the Core i3-1125G4 and Ryzen 5 3400G share an identical 4-core/8-thread configuration. Boost clocks reach 3.7 GHz on the Core i3-1125G4 versus 4.2 GHz on the Ryzen 5 3400G — a 12.7% clock advantage for the Ryzen 5 3400G (base: 2 GHz vs 3.7 GHz). The Core i3-1125G4 uses the Tiger Lake-UP3 (2020−2021) architecture (10 nm SuperFin), while the Ryzen 5 3400G uses Picasso (2019−2022) (12 nm). In PassMark, the Core i3-1125G4 scores 9,284 against the Ryzen 5 3400G's 9,201 — a 0.9% lead for the Core i3-1125G4. L3 cache: 8 MB (total) on the Core i3-1125G4 vs 4 MB (total) on the Ryzen 5 3400G.

Feature	Core i3-1125G4	Ryzen 5 3400G
Cores / Threads	4 / 8	4 / 8
Boost Clock	3.7 GHz	4.2 GHz+14%
Base Clock	2 GHz	3.7 GHz+85%
L3 Cache	8 MB (total)+100%	4 MB (total)
L2 Cache	1.25 MB (per core)	512K (per core)+40860%
Process	10 nm SuperFin-17%	12 nm
Architecture	Tiger Lake-UP3 (2020−2021)	Picasso (2019−2022)
PassMark	9,284	9,201
Cinebench R23 Multi	5,112	—
Geekbench 6 Single	1,560	—
Geekbench 6 Multi	4,770	—

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Memory & Platform

The Core i3-1125G4 uses the FCBGA1449 socket (PCIe 4.0), while the Ryzen 5 3400G uses AM4 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i3-1125G4	Ryzen 5 3400G
Socket	FCBGA1449	AM4
PCIe Generation	PCIe 4.0+33%	PCIe 3.0
Max RAM Speed	DDR4-3200	—
Max RAM Capacity	64 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

🔧

Advanced Features

Virtualization: VT-x, VT-d, EPT (Core i3-1125G4) / not specified (Ryzen 5 3400G). The Core i3-1125G4 includes integrated graphics (UHD Graphics (48 EU)), while the Ryzen 5 3400G requires a dedicated GPU. Primary use case: Core i3-1125G4 targets Productivity. Direct competitor: Core i3-1125G4 rivals Ryzen 3 5300U.