Atom x5-E3940 vs Core 2 Duo T7100

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 x5-E3940 vs Core 2 Duo T7100 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 x5-E3940 vs Core 2 Duo T7100: Pros, Cons & Final Verdict

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

Atom x5-E3940

2014

Why buy it

✅100+% more PCIe lanes (6 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel HD Graphics 500, while Core 2 Duo T7100 needs a discrete GPU.

Trade-offs

❌Lower PassMark (1,816 vs 1,817).
❌400% higher power demand at 10W vs 2W.

Core 2 Duo T7100

2007

Why buy it

✅+0.1% higher PassMark.
✅Draws 2W instead of 10W, a 8W reduction.

Trade-offs

❌Launch MSRP is still $197 MSRP, while Atom x5-E3940 mostly shows up through inconsistent older-market listings.
❌No integrated graphics, while Atom x5-E3940 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core 2 Duo T7100 better than Atom x5-E3940?

Yes. Core 2 Duo T7100 is the better all-around CPU here. It gives you a 0.3% average FPS lead across 50 shared CPU game tests in our data and 0.1% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

For gaming, this matchup is basically a tie in the data we have.

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

For streaming, content creation, and heavier multitasking, Core 2 Duo T7100 is the stronger fit. You are getting 0.1% better PassMark, backed by 2 cores and 2 threads.

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

Core 2 Duo T7100 is the better buy right now. Core 2 Duo T7100 comes in at an unclear MSRP at $197 MSRP versus unclear MSRP, and it still gives you a 0.3% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (9.2 vs 0.0 PassMark/$), 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 x5-E3940 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2014 vs 2007). That makes it the safer long-term bet.

Atom x5-E3940 vs Core 2 Duo T7100 Technical Specifications

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

Atom x5-E3940

The Atom x5-E3940 is manufactured by Intel. It was released in 30 August 2014 (11 years ago). It is based on the Apollo Lake (2014−2016) architecture. It features 4 cores and 4 threads. Base frequency is 1.6 GHz, with boost up to 1.8 GHz. L3 cache: 0 kB. L2 cache: 2 MB (total). Built on 14 nm process technology. Socket: FCBGA1296. Thermal design power (TDP): 10 Watt. Memory support: DDR3-1866. Passmark benchmark score: 1,816 points. Launch price was $69.

Core 2 Duo T7100

The Core 2 Duo T7100 is manufactured by Intel. It was released in 9 May 2007 (18 years ago). It is based on the Merom (2006−2008) architecture. It features 2 cores and 2 threads. Base frequency is 1.8 GHz, with boost up to 1.8 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 35 Watt. Passmark benchmark score: 1,817 points. Launch price was $197.

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Processing Power

The Atom x5-E3940 packs 4 cores / 4 threads, while the Core 2 Duo T7100 offers 2 cores / 2 threads — the Atom x5-E3940 has 2 more cores. Boost clocks reach 1.8 GHz on the Atom x5-E3940 versus 1.8 GHz on the Core 2 Duo T7100 — identical boost frequencies (base: 1.6 GHz vs 1.8 GHz). The Atom x5-E3940 uses the Apollo Lake (2014−2016) architecture (14 nm), while the Core 2 Duo T7100 uses Merom (2006−2008) (65 nm). In PassMark, the Atom x5-E3940 scores 1,816 against the Core 2 Duo T7100's 1,817 — a 0.1% lead for the Core 2 Duo T7100. Both processors carry 0 kB of L3 cache.

Feature	Atom x5-E3940	Core 2 Duo T7100
Cores / Threads	4 / 4+100%	2 / 2
Boost Clock	1.8 GHz	1.8 GHz
Base Clock	1.6 GHz	1.8 GHz+12%
L3 Cache	0 kB	0 kB
L2 Cache	2 MB (total)	2 MB
Process	14 nm-78%	65 nm
Architecture	Apollo Lake (2014−2016)	Merom (2006−2008)
PassMark	1,816	1,817

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Memory & Platform

The Atom x5-E3940 uses the FCBGA1296 socket (PCIe 3.0), while the Core 2 Duo T7100 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3L-1866 on the Atom x5-E3940 versus DDR2-667 on the Core 2 Duo T7100 — the Atom x5-E3940 supports 179.8% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both feature 2-channel memory with ECC support. Chipset compatibility: Intel FCBGA1296 (Atom x5-E3940) and GM965,PM965 (Core 2 Duo T7100).

Feature	Atom x5-E3940	Core 2 Duo T7100
Socket	FCBGA1296	PGA478
PCIe Generation	PCIe 3.0+173%	PCIe 1.1
Max RAM Speed	DDR3L-1866+180%	DDR2-667
Max RAM Capacity	8 GB	—
RAM Channels	2	2
ECC Support	Yes	No
PCIe Lanes	6	—

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Advanced Features

Virtualization: not specified (Atom x5-E3940) / VT-x (Core 2 Duo T7100). The Atom x5-E3940 includes integrated graphics (Intel HD Graphics 500), while the Core 2 Duo T7100 requires a dedicated GPU. Primary use case: Core 2 Duo T7100 targets Budget. Direct competitor: Core 2 Duo T7100 rivals Athlon 64 X2 TK-42.