Core i3-N305 vs Xeon E3-1285 v6

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-N305 vs Xeon E3-1285 v6 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-N305 vs Xeon E3-1285 v6: 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-N305

2023

Why buy it

✅+1% higher PassMark.
✅Costs $141 less on MSRP ($309 MSRP vs $450 MSRP).
✅Delivers 47.1% more PassMark for each dollar spent, at 31.1 vs 21.1 PassMark/$ ($309 MSRP vs $450 MSRP).
✅Draws 15W instead of 79W, a 64W reduction.
✅Newer platform on FCBGA1264 with DDR5 support instead of LGA1151 and DDR4.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E3-1285 v6 across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (6 MB vs 8 MB).

Xeon E3-1285 v6

2017

Why buy it

✅Better for gaming: +20.8% higher average FPS across 50 shared CPU benchmark tests.
✅+33.3% larger total L3 cache (8 MB vs 6 MB).

Trade-offs

❌Lower PassMark (9,502 vs 9,600).
❌Lower PassMark per dollar, at 21.1 vs 31.1 PassMark/$ ($450 MSRP vs $309 MSRP).
❌426.7% higher power demand at 79W vs 15W.
❌Older platform position on LGA1151 with DDR4, while Core i3-N305 moves to FCBGA1264 and DDR5.

Quick Answers

So, is Core i3-N305 better than Xeon E3-1285 v6?

Not really, because they are built for different jobs. Xeon E3-1285 v6 makes more sense for workstation-style multi-core throughput, while Core i3-N305 is the more practical desktop choice for gaming, platform cost, and everyday use.

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

For streaming, content creation, and heavier multitasking, Core i3-N305 is the stronger fit. You are getting 1% better PassMark, backed by 8 cores and 8 threads.

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

Core i3-N305 is the better buy right now. Core i3-N305 comes in $141 cheaper on MSRP at $309 MSRP versus $450 MSRP, and it still gives you 1% better PassMark. The compromise is that Xeon E3-1285 v6 is still the better pure gaming CPU with a 20.8% average FPS lead across 50 shared CPU game tests in our data. It is also 47.1% better value on MSRP (31.1 vs 21.1 PassMark/$), 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-N305 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2017), a healthier platform with FCBGA1264 and DDR5 instead of LGA1151, and more multi-core headroom with 8 cores / 8 threads instead of 4/8. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i3-N305 vs Xeon E3-1285 v6 Technical Specifications

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

Core i3-N305

The Core i3-N305 is manufactured by Intel. It was released in 3 January 2023 (2 years ago). It is based on the Alder Lake-N (2023) architecture. It features 8 cores and 8 threads. Base frequency is 0.1 GHz, with boost up to 3.8 GHz. L3 cache: 6 MB (total). L2 cache: 2 MB (per module). Built on Intel 7 nm process technology. Socket: FCBGA1264. Thermal design power (TDP): 15 Watt. Memory support: DDR4, DDR5. Passmark benchmark score: 9,600 points. Launch price was $309.

Xeon E3-1285 v6

The Xeon E3-1285 v6 is manufactured by Intel. It was released in 1 August 2017 (8 years ago). It is based on the Kaby Lake-DT (2017) architecture. It features 4 cores and 8 threads. Base frequency is 4.1 GHz, with boost up to 4.5 GHz. L3 cache: 8 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 79 Watt. Memory support: DDR4-2400, DDR3L-1866. Passmark benchmark score: 9,502 points. Launch price was $450.

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Processing Power

The Core i3-N305 packs 8 cores / 8 threads, while the Xeon E3-1285 v6 offers 4 cores / 8 threads — the Core i3-N305 has 4 more cores. Boost clocks reach 3.8 GHz on the Core i3-N305 versus 4.5 GHz on the Xeon E3-1285 v6 — a 16.9% clock advantage for the Xeon E3-1285 v6 (base: 0.1 GHz vs 4.1 GHz). The Core i3-N305 uses the Alder Lake-N (2023) architecture (Intel 7 nm), while the Xeon E3-1285 v6 uses Kaby Lake-DT (2017) (14 nm). In PassMark, the Core i3-N305 scores 9,600 against the Xeon E3-1285 v6's 9,502 — a 1% lead for the Core i3-N305. L3 cache: 6 MB (total) on the Core i3-N305 vs 8 MB (total) on the Xeon E3-1285 v6.

Feature	Core i3-N305	Xeon E3-1285 v6
Cores / Threads	8 / 8+100%	4 / 8
Boost Clock	3.8 GHz	4.5 GHz+18%
Base Clock	0.1 GHz	4.1 GHz+4000%
L3 Cache	6 MB (total)	8 MB (total)+33%
L2 Cache	2 MB (per module)	256K (per core)+12700%
Process	Intel 7 nm-50%	14 nm
Architecture	Alder Lake-N (2023)	Kaby Lake-DT (2017)
PassMark	9,600+1%	9,502

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Memory & Platform

The Core i3-N305 uses the FCBGA1264 socket (PCIe 5.0), while the Xeon E3-1285 v6 uses LGA1151 (PCIe 5.0) — making them incompatible on the same motherboard.

Feature	Core i3-N305	Xeon E3-1285 v6
Socket	FCBGA1264	LGA1151
PCIe Generation	PCIe 5.0	PCIe 5.0

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Value Analysis

At launch, the Core i3-N305 was priced at $309, while the Xeon E3-1285 v6 came in at $450. On launch pricing ($309 vs $450), Core i3-N305 was $141 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i3-N305 delivers 31.1 pts/$ vs 21.1 pts/$ for the Xeon E3-1285 v6 — making the Core i3-N305 the 38.1% better value option.

Feature	Core i3-N305	Xeon E3-1285 v6
MSRP	$309-31%	$450
Performance per Dollar	31.1+47%	21.1
Release Date	2023	2017

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