Atom x5-E3930 vs Core 2 Duo E6400

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-E3930 vs Core 2 Duo E6400 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-E3930 vs Core 2 Duo E6400: 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-E3930

2016

Why buy it

✅Better for gaming: +3.3% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 7W instead of 65W, a 59W reduction.
✅Integrated graphics onboard with Intel HD Graphics 500, while Core 2 Duo E6400 needs a discrete GPU.

Trade-offs

❌No boxed cooler included, unlike Core 2 Duo E6400.

Core 2 Duo E6400

2006

Why buy it

✅300% more PCIe lanes (16 vs 4) for storage and expansion-heavy builds.
✅Includes a boxed cooler (true), unlike Atom x5-E3930.

Trade-offs

❌Worse for gaming: lower average FPS than Atom x5-E3930 across 50 shared CPU benchmark tests.
❌Lower PassMark (1,175 vs 1,185).
❌Launch MSRP is still $183 MSRP, while Atom x5-E3930 mostly shows up through inconsistent older-market listings.
❌900% higher power demand at 65W vs 6.5W.
❌No integrated graphics, while Atom x5-E3930 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Atom x5-E3930 better than Core 2 Duo E6400?

Yes. Atom x5-E3930 is the better all-around CPU here. It gives you a 3.3% average FPS lead across 50 shared CPU game tests in our data, 0.9% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Atom x5-E3930 is the better pick. According to our tests, it delivers 3.3% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Atom x5-E3930 is the stronger fit. You are getting 0.9% better PassMark, backed by 2 cores and 2 threads.

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

Atom x5-E3930 is still the much better call for a fresh build. Atom x5-E3930 comes in at an unclear MSRP at unclear MSRP versus $183 MSRP, and it still gives you a 3.3% average FPS lead across 50 shared CPU game tests in our data. Core 2 Duo E6400 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2006 platform. Even with 100.0% better value on paper (6.4 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on LGA775.

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

Atom x5-E3930 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2016 vs 2006) and more multi-core headroom with 2 cores / 2 threads instead of 2/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Atom x5-E3930 vs Core 2 Duo E6400 Technical Specifications

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

Atom x5-E3930

The Atom x5-E3930 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 2 cores and 2 threads. Base frequency is 1.3 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): 7 Watt. Memory support: DDR3-1866. Passmark benchmark score: 1,185 points. Launch price was $69.

Core 2 Duo E6400

The Core 2 Duo E6400 is manufactured by Intel. It was released in 2008-01-01. It is based on the Conroe (2006−2007) architecture. It features 2 cores and 2 threads. Base frequency is 2.13 GHz, with boost up to 2.13 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,175 points. Launch price was $249.

⚡

Processing Power

Both the Atom x5-E3930 and Core 2 Duo E6400 share an identical 2-core/2-thread configuration. Boost clocks reach 1.8 GHz on the Atom x5-E3930 versus 2.13 GHz on the Core 2 Duo E6400 — a 16.8% clock advantage for the Core 2 Duo E6400 (base: 1.3 GHz vs 2.13 GHz). The Atom x5-E3930 uses the Apollo Lake (2014−2016) architecture (14 nm), while the Core 2 Duo E6400 uses Conroe (2006−2007) (65 nm). In PassMark, the Atom x5-E3930 scores 1,185 against the Core 2 Duo E6400's 1,175 — a 0.8% lead for the Atom x5-E3930. Both processors carry 0 kB of L3 cache.

Feature	Atom x5-E3930	Core 2 Duo E6400
Cores / Threads	2 / 2	2 / 2
Boost Clock	1.8 GHz	2.13 GHz+18%
Base Clock	1.3 GHz	2.13 GHz+64%
L3 Cache	0 kB	0 kB
L2 Cache	2 MB (total)	2 MB
Process	14 nm-78%	65 nm
Architecture	Apollo Lake (2014−2016)	Conroe (2006−2007)
PassMark	1,185	1,175

🧠

Memory & Platform

The Atom x5-E3930 uses the FCBGA1296 socket (PCIe 3.0), while the Core 2 Duo E6400 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3L-1866 on the Atom x5-E3930 versus 1066 on the Core 2 Duo E6400 — the Atom x5-E3930 supports 75% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core 2 Duo E6400 supports up to 16 GB of RAM compared to 8 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 4 (Atom x5-E3930) vs 16 (Core 2 Duo E6400) — the Core 2 Duo E6400 offers 12 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel FCBGA1296 (Atom x5-E3930) and P35,G31,G33,P45 (Core 2 Duo E6400).

Feature	Atom x5-E3930	Core 2 Duo E6400
Socket	FCBGA1296	LGA775
PCIe Generation	PCIe 3.0+173%	PCIe 1.1
Max RAM Speed	DDR3L-1866+75%	1066
Max RAM Capacity	8 GB	16 GB+100%
RAM Channels	2	2
ECC Support	Yes	No
PCIe Lanes	4	16+300%

🔧

Advanced Features

Virtualization: not specified (Atom x5-E3930) / true (Core 2 Duo E6400). The Atom x5-E3930 includes integrated graphics (Intel HD Graphics 500), while the Core 2 Duo E6400 requires a dedicated GPU. Direct competitor: Core 2 Duo E6400 rivals Athlon 64 X2 5400+.