Atom E3815 vs Sempron 3100+

Atom E3815 vs Sempron 3100+ Performance Spectrum

Atom E3815

1 / 1

365

0.0%

372

+1.9%

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About PassMark

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 E3815 vs Sempron 3100+ 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 E3815 vs Sempron 3100+: Pros, Cons & Final Verdict

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

Atom E3815

2013

Why buy it

✅100+% more PCIe lanes (4 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel HD Graphics (Bay Trail), while Sempron 3100+ needs a discrete GPU.

Trade-offs

❌Lower PassMark (365 vs 372).
❌725.8% higher power demand at 512W vs 62W.
❌No boxed cooler included, unlike Sempron 3100+.

Sempron 3100+

2001

Why buy it

✅Draws 62W instead of 512W, a 450W reduction.
✅Includes a boxed cooler (true), unlike Atom E3815.

Trade-offs

❌Launch MSRP is still $65 MSRP, while Atom E3815 mostly shows up through inconsistent older-market listings.
❌No integrated graphics, while Atom E3815 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Sempron 3100+ better than Atom E3815?

Yes. Sempron 3100+ is the better all-around CPU here. It gives you 1.9% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Sempron 3100+ has the edge because it leads the single-thread side of this matchup with 22.4% higher max boost clock.

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

For streaming, content creation, and heavier multitasking, Sempron 3100+ is the stronger fit. You are getting 1.9% better PassMark, backed by 1 cores and 1 threads.

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

Sempron 3100+ is the better buy right now. Sempron 3100+ comes in at an unclear MSRP at $65 MSRP versus unclear MSRP, and it still gives you 1.9% higher PassMark. It is also 100.0% better value on MSRP (5.7 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Atom E3815 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2013 vs 2001). That makes it the safer long-term bet.

Atom E3815 vs Sempron 3100+ Technical Specifications

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

Atom E3815

The Atom E3815 is manufactured by Intel. It was released in 8 October 2013 (12 years ago). It is based on the Bay Trail-I (2013) architecture. It features 1 cores and 1 threads. Max frequency: 1.47 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 22 nm process technology. Socket: FCBGA1170. Thermal design power (TDP): 512 kB. Memory support: DDR3. Passmark benchmark score: 365 points. Launch price was $134.

Sempron 3100+

The Sempron 3100+ is manufactured by AMD. It was released in Janeiro 2001 (24 years ago). It is based on the Palermo (2001−2005) architecture. It features 1 cores and 1 threads. Max frequency: 1.8 GHz. L3 cache: 0 kB. L2 cache: 256 kB. Built on 130 nm process technology. Socket: 754. Thermal design power (TDP): 62 Watt. Passmark benchmark score: 372 points. Launch price was $60.

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Processing Power

Both the Atom E3815 and Sempron 3100+ share an identical 1-core/1-thread configuration. Boost clocks reach 1.47 GHz on the Atom E3815 versus 1.8 GHz on the Sempron 3100+ — a 20.2% clock advantage for the Sempron 3100+. The Atom E3815 uses the Bay Trail-I (2013) architecture (22 nm), while the Sempron 3100+ uses Palermo (2001−2005) (130 nm). In PassMark, the Atom E3815 scores 365 against the Sempron 3100+'s 372 — a 1.9% lead for the Sempron 3100+. Both processors carry 0 kB of L3 cache.

Feature	Atom E3815	Sempron 3100+
Cores / Threads	1 / 1	1 / 1
Boost Clock	1.47 GHz	1.8 GHz+22%
L3 Cache	0 kB	0 kB
L2 Cache	512 kB (per core)+100%	256 kB
Process	22 nm-83%	130 nm
Architecture	Bay Trail-I (2013)	Palermo (2001−2005)
PassMark	365	372+2%

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Memory & Platform

The Atom E3815 uses the FCBGA1170 socket (PCIe 2.0), while the Sempron 3100+ uses 754 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3L-1066 on the Atom E3815 versus DDR 400 MHz on the Sempron 3100+ — the Atom E3815 supports 166.5% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Atom E3815 supports up to 8 GB of RAM compared to 3 GB — 166.7% more capacity for professional workloads. Both feature 1-channel memory with ECC support. PCIe lanes: 4 (Atom E3815) vs 0 (Sempron 3100+) — the Atom E3815 offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel FCBGA1170 (Atom E3815) and nForce3,VIA K8T800 (Sempron 3100+).

Feature	Atom E3815	Sempron 3100+
Socket	FCBGA1170	754
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	DDR3L-1066+167%	DDR 400 MHz
Max RAM Capacity	8 GB+167%	3 GB
RAM Channels	1	1
ECC Support	Yes	No
PCIe Lanes	4	0

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Advanced Features

Virtualization: not specified (Atom E3815) / false (Sempron 3100+). The Atom E3815 includes integrated graphics (Intel HD Graphics (Bay Trail)), while the Sempron 3100+ requires a dedicated GPU. Primary use case: Sempron 3100+ targets Budget.