Core i3-1125G4 vs Xeon E5-4655 v3

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 Xeon E5-4655 v3 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 Xeon E5-4655 v3: 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

✅Draws 15W instead of 135W, a 120W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with UHD Graphics (48 EU), while Xeon E5-4655 v3 needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E5-4655 v3 across 50 shared CPU benchmark tests.
❌Lower PassMark (9,284 vs 9,377).
❌Smaller total L3 cache (8 MB vs 30 MB).
❌Less compelling for workstation-style loads than Xeon E5-4655 v3, which brings 6 cores / 12 threads.

Xeon E5-4655 v3

2015

Why buy it

✅Better for gaming: +15.3% higher average FPS across 50 shared CPU benchmark tests.
✅+275% larger total L3 cache (30 MB vs 8 MB).
✅Better for workstations and heavier parallel workloads: 6 cores / 12 threads.

Trade-offs

❌Launch MSRP is still $623 MSRP, while Core i3-1125G4 mostly shows up through inconsistent older-market listings.
❌800% higher power demand at 135W vs 15W.
❌No integrated graphics, while Core i3-1125G4 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Xeon E5-4655 v3 better than Core i3-1125G4?

Not really, because they are built for different jobs. Xeon E5-4655 v3 makes more sense for workstation-style multi-core throughput, while Core i3-1125G4 is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Xeon E5-4655 v3 is the better pick. According to our tests, it delivers 15.3% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Xeon E5-4655 v3 is the stronger fit. You are getting 1% better PassMark, backed by 6 cores and 12 threads. It also has the larger cache pool with 275% larger total L3 cache (30 MB vs 8 MB).

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

Xeon E5-4655 v3 is the better buy right now. Xeon E5-4655 v3 comes in at an unclear MSRP at $623 MSRP versus unclear MSRP, and it still gives you a 15.3% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (15.1 vs 0.0 PassMark/$), 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 i3-1125G4 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2021 vs 2015) and AVX-512 support for heavier modern compute workloads. That makes it the safer long-term bet.

Core i3-1125G4 vs Xeon E5-4655 v3 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.

Xeon E5-4655 v3

The Xeon E5-4655 v3 is manufactured by Intel. It was released in 2015-01-01. It is based on the Haswell-EP (2014−2015) architecture. It features 6 cores and 12 threads. Base frequency is 2.9 GHz, with boost up to 3.2 GHz. L3 cache: 30 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: LGA2011. Thermal design power (TDP): 135 Watt. Memory support: DDR4. Passmark benchmark score: 9,377 points. Launch price was $800.

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Processing Power

The Core i3-1125G4 packs 4 cores / 8 threads, while the Xeon E5-4655 v3 offers 6 cores / 12 threads — the Xeon E5-4655 v3 has 2 more cores. Boost clocks reach 3.7 GHz on the Core i3-1125G4 versus 3.2 GHz on the Xeon E5-4655 v3 — a 14.5% clock advantage for the Core i3-1125G4 (base: 2 GHz vs 2.9 GHz). The Core i3-1125G4 uses the Tiger Lake-UP3 (2020−2021) architecture (10 nm SuperFin), while the Xeon E5-4655 v3 uses Haswell-EP (2014−2015) (22 nm). In PassMark, the Core i3-1125G4 scores 9,284 against the Xeon E5-4655 v3's 9,377 — a 1% lead for the Xeon E5-4655 v3. L3 cache: 8 MB (total) on the Core i3-1125G4 vs 30 MB (total) on the Xeon E5-4655 v3.

Feature	Core i3-1125G4	Xeon E5-4655 v3
Cores / Threads	4 / 8	6 / 12+50%
Boost Clock	3.7 GHz+16%	3.2 GHz
Base Clock	2 GHz	2.9 GHz+45%
L3 Cache	8 MB (total)	30 MB (total)+275%
L2 Cache	1.25 MB (per core)	256K (per core)+20380%
Process	10 nm SuperFin-55%	22 nm
Architecture	Tiger Lake-UP3 (2020−2021)	Haswell-EP (2014−2015)
PassMark	9,284	9,377+1%
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 Xeon E5-4655 v3 uses LGA2011 (PCIe 5.0) — making them incompatible on the same motherboard.

Feature	Core i3-1125G4	Xeon E5-4655 v3
Socket	FCBGA1449	LGA2011
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	DDR4-3200	—
Max RAM Capacity	64 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

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Advanced Features

Virtualization: VT-x, VT-d, EPT (Core i3-1125G4) / not specified (Xeon E5-4655 v3). The Core i3-1125G4 includes integrated graphics (UHD Graphics (48 EU)), while the Xeon E5-4655 v3 requires a dedicated GPU. Primary use case: Core i3-1125G4 targets Productivity. Direct competitor: Core i3-1125G4 rivals Ryzen 3 5300U.