Processor U300 vs Xeon E3-1240 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.

Processor U300 vs Xeon E3-1240 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.

Processor U300 vs Xeon E3-1240 v6: Pros, Cons & Final Verdict

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

Processor U300

2023

Why buy it

✅+1.9% higher PassMark.
✅Draws 15W instead of 72W, a 57W reduction.
✅Newer platform on FCBGA1744 with DDR5 support instead of LGA1151 and DDR4.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E3-1240 v6 across 50 shared CPU benchmark tests.
❌Less compelling for workstation-style loads than Xeon E3-1240 v6, which brings 4 cores / 8 threads.
❌Launch MSRP is still $193 MSRP, while Xeon E3-1240 v6 mostly shows up through inconsistent older-market listings.

Xeon E3-1240 v6

2017

Why buy it

✅Better for gaming: +13.8% higher average FPS across 50 shared CPU benchmark tests.
✅Better for workstations and heavier parallel workloads: 4 cores / 8 threads.

Trade-offs

❌Lower PassMark (8,731 vs 8,897).
❌380% higher power demand at 72W vs 15W.
❌Older platform position on LGA1151 with DDR4, while Processor U300 moves to FCBGA1744 and DDR5.

Quick Answers

So, is Processor U300 better than Xeon E3-1240 v6?

Not really, because they are built for different jobs. Xeon E3-1240 v6 makes more sense for workstation-style multi-core throughput, while Processor U300 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, Processor U300 is the stronger fit. You are getting 1.9% better PassMark, backed by 5 cores and 6 threads.

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

Processor U300 is the better buy right now. Processor U300 comes in at an unclear MSRP at $193 MSRP versus unclear MSRP, and it still gives you 1.9% better PassMark. The compromise is that Xeon E3-1240 v6 is still the better pure gaming CPU with a 13.8% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (46.1 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Processor U300 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2017), a healthier platform with FCBGA1744 and DDR5 instead of LGA1151, and more multi-core headroom with 5 cores / 6 threads instead of 4/8. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Processor U300 vs Xeon E3-1240 v6 Technical Specifications

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

Processor U300

The Processor U300 is manufactured by Intel. It was released in 4 January 2023 (2 years ago). It is based on the Raptor Lake-U (2023) architecture. It features 5 cores and 6 threads. Base frequency is 1.2 GHz, with boost up to 4.4 GHz. L3 cache: 8 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm process technology. Socket: FCBGA1744. Thermal design power (TDP): 15 Watt. Memory support: DDR4, DDR5 Dual-channel. Passmark benchmark score: 8,897 points. Launch price was $193.

Xeon E3-1240 v6

The Xeon E3-1240 v6 is manufactured by Intel. It was released in 28 March 2017 (8 years ago). It is based on the Kaby Lake (2016−2019) architecture. It features 4 cores and 8 threads. Base frequency is 3.7 GHz, with boost up to 4.1 GHz. L3 cache: 8 MB. L2 cache: 1 MB. Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 72 Watt. Memory support: DDR4-2400, DDR3L-1866. Passmark benchmark score: 8,731 points. Launch price was $272.

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Processing Power

The Processor U300 packs 5 cores / 6 threads, while the Xeon E3-1240 v6 offers 4 cores / 8 threads — the Processor U300 has 1 more core. Boost clocks reach 4.4 GHz on the Processor U300 versus 4.1 GHz on the Xeon E3-1240 v6 — a 7.1% clock advantage for the Processor U300 (base: 1.2 GHz vs 3.7 GHz). The Processor U300 uses the Raptor Lake-U (2023) architecture (10 nm), while the Xeon E3-1240 v6 uses Kaby Lake (2016−2019) (14 nm). In PassMark, the Processor U300 scores 8,897 against the Xeon E3-1240 v6's 8,731 — a 1.9% lead for the Processor U300. L3 cache: 8 MB (total) on the Processor U300 vs 8 MB on the Xeon E3-1240 v6.

Feature	Processor U300	Xeon E3-1240 v6
Cores / Threads	5 / 6+25%	4 / 8
Boost Clock	4.4 GHz+7%	4.1 GHz
Base Clock	1.2 GHz	3.7 GHz+208%
L3 Cache	8 MB (total)	8 MB
L2 Cache	1.25 MB (per core)+25%	1 MB
Process	10 nm-29%	14 nm
Architecture	Raptor Lake-U (2023)	Kaby Lake (2016−2019)
PassMark	8,897+2%	8,731

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Memory & Platform

The Processor U300 uses the FCBGA1744 socket (PCIe 5.0), while the Xeon E3-1240 v6 uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard.