Core i3-N300 vs Xeon E3-1275 v5

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-N300 vs Xeon E3-1275 v5 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-N300 vs Xeon E3-1275 v5: 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-N300

2023

Why buy it

✅Newer platform on FCBGA1264 with DDR5 support instead of LGA1151 and DDR4.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E3-1275 v5 across 50 shared CPU benchmark tests.
❌Lower PassMark (8,283 vs 8,291).
❌Smaller total L3 cache (6 MB vs 8 MB).
❌Launch MSRP is still $309 MSRP, while Xeon E3-1275 v5 mostly shows up through inconsistent older-market listings.

Xeon E3-1275 v5

2015

Why buy it

✅Better for gaming: +3.0% higher average FPS across 50 shared CPU benchmark tests.
✅+33.3% larger total L3 cache (8 MB vs 6 MB).

Trade-offs

❌Older platform position on LGA1151 with DDR4, while Core i3-N300 moves to FCBGA1264 and DDR5.

Quick Answers

So, is Xeon E3-1275 v5 better than Core i3-N300?

Not really, because they are built for different jobs. Xeon E3-1275 v5 makes more sense for workstation-style multi-core throughput, while Core i3-N300 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 E3-1275 v5 is the better pick. According to our tests, it delivers 3.0% 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 E3-1275 v5 is the stronger fit. You are getting 0.1% better PassMark, backed by 4 cores and 8 threads. It also has the larger cache pool with 33.3% larger total L3 cache (8 MB vs 6 MB).

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

Xeon E3-1275 v5 is the easy recommendation for a fresh desktop build. Xeon E3-1275 v5 comes in at an unclear MSRP at unclear MSRP versus $309 MSRP, and it still gives you a 3.0% average FPS lead across 50 shared CPU game tests in our data. Core i3-N300 only looks good on raw value math because it is a cheap legacy laptop chip, not because it is a real desktop gaming recommendation. It simply does not keep up in modern games, especially when the gap is already 3.0% in the shared gaming data.

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

Core i3-N300 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2015) and a healthier platform with FCBGA1264 and DDR5 instead of LGA1151. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i3-N300 vs Xeon E3-1275 v5 Technical Specifications

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

Core i3-N300

The Core i3-N300 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): 7 Watt. Memory support: DDR4-3200, DDR5-4800, LPDDR5-4800. Passmark benchmark score: 8,283 points. Launch price was $309.

Xeon E3-1275 v5

The Xeon E3-1275 v5 is manufactured by Intel. It was released in 19 October 2015 (10 years ago). It is based on the Skylake-DT (2015) architecture. It features 4 cores and 8 threads. Base frequency is 3.6 GHz, with boost up to 4 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 80 Watt. Memory support: DDR4-1866/2133, DDR3L-1333/1600. Passmark benchmark score: 8,291 points. Launch price was $350.

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Processing Power

The Core i3-N300 packs 8 cores / 8 threads, while the Xeon E3-1275 v5 offers 4 cores / 8 threads — the Core i3-N300 has 4 more cores. Boost clocks reach 3.8 GHz on the Core i3-N300 versus 4 GHz on the Xeon E3-1275 v5 — a 5.1% clock advantage for the Xeon E3-1275 v5 (base: 0.1 GHz vs 3.6 GHz). The Core i3-N300 uses the Alder Lake-N (2023) architecture (Intel 7 nm), while the Xeon E3-1275 v5 uses Skylake-DT (2015) (14 nm). In PassMark, the Core i3-N300 scores 8,283 against the Xeon E3-1275 v5's 8,291 — a 0.1% lead for the Xeon E3-1275 v5. L3 cache: 6 MB (total) on the Core i3-N300 vs 8 MB (total) on the Xeon E3-1275 v5.

Feature	Core i3-N300	Xeon E3-1275 v5
Cores / Threads	8 / 8+100%	4 / 8
Boost Clock	3.8 GHz	4 GHz+5%
Base Clock	0.1 GHz	3.6 GHz+3500%
L3 Cache	6 MB (total)	8 MB (total)+33%
L2 Cache	2 MB (per module)+700%	256 kB (per core)
Process	Intel 7 nm-50%	14 nm
Architecture	Alder Lake-N (2023)	Skylake-DT (2015)
PassMark	8,283	8,291

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Memory & Platform

The Core i3-N300 uses the FCBGA1264 socket (PCIe 5.0), while the Xeon E3-1275 v5 uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard.