Atom E680 vs Mobile Sempron SI-40

Atom E680 vs Mobile Sempron SI-40 Performance Spectrum

Atom E680

1 / 2

325

+0.9%

322

0.0%

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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 E680 vs Mobile Sempron SI-40 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 E680 vs Mobile Sempron SI-40: Pros, Cons & Final Verdict

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

Atom E680

2010

Why buy it

✅+0.9% higher PassMark.
✅Draws 4W instead of 512W, a 508W reduction.
✅100+% more PCIe lanes (4 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel GMA 600, while Mobile Sempron SI-40 needs a discrete GPU.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Mobile Sempron SI-40

2008

Why buy it

Trade-offs

❌Lower PassMark (322 vs 325).
❌12700% higher power demand at 512W vs 4W.
❌No integrated graphics, while Atom E680 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Atom E680 better than Mobile Sempron SI-40?

It depends on what you want from the system. For gaming, Mobile Sempron SI-40 is ahead with 25% higher max boost clock. For rendering, compiling, streaming, and heavier multitasking, Atom E680 pulls ahead with 0.9% better PassMark.

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

For streaming, content creation, and heavier multitasking, Atom E680 is the stronger fit. You are getting 0.9% better PassMark, backed by 1 cores and 2 threads.

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

Atom E680 still makes the most sense overall. Atom E680 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 0.9% better PassMark.

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

Atom E680 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2010 vs 2008) and more multi-core headroom with 1 cores / 2 threads instead of 1/1. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Atom E680 vs Mobile Sempron SI-40 Technical Specifications

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

Atom E680

The Atom E680 is manufactured by Intel. It was released in 14 September 2010 (15 years ago). It is based on the Tunnel Creek (2010) architecture. It features 1 cores and 2 threads. Max frequency: 1.6 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: BGA676. Thermal design power (TDP): 4 Watt. Memory support: DDR2. Passmark benchmark score: 325 points. Launch price was $69.

Mobile Sempron SI-40

The Mobile Sempron SI-40 is manufactured by AMD. It was released in 4 July 2008 (17 years ago). It is based on the Sable (2008−2009) architecture. It features 1 cores and 1 threads. Max frequency: 2 GHz. L2 cache: 512 kB. Built on 65 nm process technology. Socket: S1g2. Thermal design power (TDP): 512 kB. Passmark benchmark score: 322 points. Launch price was $69.

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Processing Power

The Atom E680 packs 1 cores / 2 threads, matching the Mobile Sempron SI-40's 1 cores. Boost clocks reach 1.6 GHz on the Atom E680 versus 2 GHz on the Mobile Sempron SI-40 — a 22.2% clock advantage for the Mobile Sempron SI-40. The Atom E680 uses the Tunnel Creek (2010) architecture (45 nm), while the Mobile Sempron SI-40 uses Sable (2008−2009) (65 nm). In PassMark, the Atom E680 scores 325 against the Mobile Sempron SI-40's 322 — a 0.9% lead for the Atom E680.

Feature	Atom E680	Mobile Sempron SI-40
Cores / Threads	1 / 2	1 / 1
Boost Clock	1.6 GHz	2 GHz+25%
L3 Cache	0 kB	—
L2 Cache	512 kB (per core)	512 kB
Process	45 nm-31%	65 nm
Architecture	Tunnel Creek (2010)	Sable (2008−2009)
PassMark	325	322

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Memory & Platform

The Atom E680 uses the BGA676 socket (PCIe 2.0), while the Mobile Sempron SI-40 uses S1g2 (PCIe 2.0) — making them incompatible on the same motherboard.