Core i3-N300 vs Xeon E5-2665

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 E5-2665 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 E5-2665: 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 LGA2011 and older memory support.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E5-2665 across 50 shared CPU benchmark tests.
❌Lower PassMark (8,283 vs 8,293).
❌Smaller total L3 cache (6 MB vs 20 MB).
❌Less compelling for workstation-style loads than Xeon E5-2665, which brings 8 cores / 16 threads and 40 PCIe lanes.
❌Launch MSRP is still $309 MSRP, while Xeon E5-2665 mostly shows up through inconsistent older-market listings.

Xeon E5-2665

2012

Why buy it

✅Better for gaming: +5.9% higher average FPS across 50 shared CPU benchmark tests.
✅+233.3% larger total L3 cache (20 MB vs 6 MB).
✅Better for workstations and heavier parallel workloads: 8 cores / 16 threads, plus 40 PCIe lanes vs 0.
✅100+% more PCIe lanes (40 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Older platform position on LGA2011, while Core i3-N300 moves to FCBGA1264 and DDR5.

Quick Answers

So, is Xeon E5-2665 better than Core i3-N300?

Not really, because they are built for different jobs. Xeon E5-2665 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 E5-2665 is the better pick. According to our tests, it delivers 5.9% 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 E5-2665 is the stronger fit. You are getting 0.1% better PassMark, backed by 8 cores and 16 threads. It also has the larger cache pool with 233.3% larger total L3 cache (20 MB vs 6 MB).

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

Xeon E5-2665 is the easy recommendation for a fresh desktop build. Xeon E5-2665 comes in at an unclear MSRP at unclear MSRP versus $309 MSRP, and it still gives you a 5.9% 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 5.9% 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 2012) and a healthier platform with FCBGA1264 and DDR5 instead of LGA2011. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i3-N300 vs Xeon E5-2665 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 E5-2665

The Xeon E5-2665 is manufactured by Intel. It was released in 6 March 2012 (13 years ago). It is based on the Sandy Bridge-EP (2012) architecture. It features 8 cores and 16 threads. Base frequency is 2.4 GHz, with boost up to 3.1 GHz. L3 cache: 20480 kB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA2011. Thermal design power (TDP): 115 Watt. Memory support: DDR3. Passmark benchmark score: 8,293 points. Launch price was $142.

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Processing Power

The Core i3-N300 packs 8 cores / 8 threads, matching the Xeon E5-2665's 8 cores. Boost clocks reach 3.8 GHz on the Core i3-N300 versus 3.1 GHz on the Xeon E5-2665 — a 20.3% clock advantage for the Core i3-N300 (base: 0.1 GHz vs 2.4 GHz). The Core i3-N300 uses the Alder Lake-N (2023) architecture (Intel 7 nm), while the Xeon E5-2665 uses Sandy Bridge-EP (2012) (32 nm). In PassMark, the Core i3-N300 scores 8,283 against the Xeon E5-2665's 8,293 — a 0.1% lead for the Xeon E5-2665. L3 cache: 6 MB (total) on the Core i3-N300 vs 20480 kB (total) on the Xeon E5-2665.

Feature	Core i3-N300	Xeon E5-2665
Cores / Threads	8 / 8	8 / 16
Boost Clock	3.8 GHz+23%	3.1 GHz
Base Clock	0.1 GHz	2.4 GHz+2300%
L3 Cache	6 MB (total)	20480 kB (total)+233%
L2 Cache	2 MB (per module)+700%	256 kB (per core)
Process	Intel 7 nm-78%	32 nm
Architecture	Alder Lake-N (2023)	Sandy Bridge-EP (2012)
PassMark	8,283	8,293

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Memory & Platform

The Core i3-N300 uses the FCBGA1264 socket (PCIe 5.0), while the Xeon E5-2665 uses LGA2011 (PCIe 5.0) — making them incompatible on the same motherboard.

Feature	Core i3-N300	Xeon E5-2665
Socket	FCBGA1264	LGA2011
PCIe Generation	PCIe 5.0	PCIe 5.0
Max RAM Speed	—	DDR3-1600
Max RAM Capacity	—	384 GB
RAM Channels	—	4
ECC Support	—	Yes
PCIe Lanes	—	40