Atom C3808 vs Xeon E3-1240L 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.

Atom C3808 vs Xeon E3-1240L 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.

Atom C3808 vs Xeon E3-1240L v3: Pros, Cons & Final Verdict

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

Atom C3808

2017

Why buy it

✅Better for gaming: +9.2% higher average FPS across 50 shared CPU benchmark tests.
✅+50% larger total L3 cache (12 MB vs 8 MB).
✅100+% more PCIe lanes (12 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (5,671 vs 5,681).

Xeon E3-1240L v3

2014

Why buy it

✅+0.2% higher PassMark.

Trade-offs

❌Worse for gaming: lower average FPS than Atom C3808 across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (8 MB vs 12 MB).

Quick Answers

So, is Xeon E3-1240L v3 better than Atom C3808?

Not really, because they are built for different jobs. Xeon E3-1240L v3 makes more sense for workstation-style multi-core throughput, while Atom C3808 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, Xeon E3-1240L v3 is the stronger fit. You are getting 0.2% better PassMark, backed by 4 cores and 8 threads.

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

Xeon E3-1240L v3 still makes the most sense overall. Xeon E3-1240L v3 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 0.2% better PassMark.

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

Atom C3808 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2017 vs 2014) and 50% larger total L3 cache (12 MB vs 8 MB). That makes it the safer long-term bet.

Atom C3808 vs Xeon E3-1240L v3 Technical Specifications

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

Atom C3808

The Atom C3808 is manufactured by Intel. It was released in 15 August 2017 (8 years ago). It is based on the Goldmont (2016−2017) architecture. It features 12 cores and 12 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 12 MB. L2 cache: 12 MB. Built on 14 nm process technology. Socket: FCBGA1310. Thermal design power (TDP): 25 Watt. Memory support: DDR4: 2133. Passmark benchmark score: 5,671 points. Launch price was $369.

Xeon E3-1240L v3

The Xeon E3-1240L v3 is manufactured by Intel. It was released in 11 May 2014 (11 years ago). It is based on the Haswell-WS (2013−2014) architecture. It features 4 cores and 8 threads. Base frequency is 2 GHz, with boost up to 3 GHz. L3 cache: 8 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: LGA1150. Thermal design power (TDP): 25 Watt. Memory support: DDR3L-1333, DDR3L-1600. Passmark benchmark score: 5,681 points. Launch price was $278.

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Processing Power

The Atom C3808 packs 12 cores / 12 threads, while the Xeon E3-1240L v3 offers 4 cores / 8 threads — the Atom C3808 has 8 more cores. Boost clocks reach 2 GHz on the Atom C3808 versus 3 GHz on the Xeon E3-1240L v3 — a 40% clock advantage for the Xeon E3-1240L v3 (base: 2 GHz vs 2 GHz). The Atom C3808 uses the Goldmont (2016−2017) architecture (14 nm), while the Xeon E3-1240L v3 uses Haswell-WS (2013−2014) (22 nm). In PassMark, the Atom C3808 scores 5,671 against the Xeon E3-1240L v3's 5,681 — a 0.2% lead for the Xeon E3-1240L v3. L3 cache: 12 MB on the Atom C3808 vs 8 MB (total) on the Xeon E3-1240L v3.

Feature	Atom C3808	Xeon E3-1240L v3
Cores / Threads	12 / 12+200%	4 / 8
Boost Clock	2 GHz	3 GHz+50%
Base Clock	2 GHz	2 GHz
L3 Cache	12 MB+50%	8 MB (total)
L2 Cache	12 MB	256K (per core)+2033%
Process	14 nm-36%	22 nm
Architecture	Goldmont (2016−2017)	Haswell-WS (2013−2014)
PassMark	5,671	5,681

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Memory & Platform

The Atom C3808 uses the FCBGA1310 socket (PCIe 3.0), while the Xeon E3-1240L v3 uses LGA1150 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Atom C3808	Xeon E3-1240L v3
Socket	FCBGA1310	LGA1150
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR4-2133	—
Max RAM Capacity	256 GB	—
RAM Channels	2	—
ECC Support	Yes	—
PCIe Lanes	12	—