Athlon 64 FX-55 vs Atom E3827

Athlon 64 FX-55 vs Atom E3827 Performance Spectrum

Athlon 64 FX-55

1 / 1

690

+3.8%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Atom E3827

2 / 2

665

0.0%

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.

Athlon 64 FX-55 vs Atom E3827 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.

Athlon 64 FX-55 vs Atom E3827: Pros, Cons & Final Verdict

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

Athlon 64 FX-55

2004

Why buy it

Trade-offs

❌Launch MSRP is still $827 MSRP, while Atom E3827 mostly shows up through inconsistent older-market listings.
❌1200% higher power demand at 104W vs 8W.
❌No integrated graphics, while Atom E3827 can still boot and troubleshoot without a discrete GPU.

Atom E3827

2013

Why buy it

✅Draws 8W instead of 104W, a 96W reduction.
✅100+% more PCIe lanes (4 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel HD Graphics (Bay Trail), while Athlon 64 FX-55 needs a discrete GPU.

Trade-offs

❌Lower PassMark (665 vs 690).

Quick Answers

So, is Athlon 64 FX-55 better than Atom E3827?

Yes. Athlon 64 FX-55 is the better all-around CPU here. It gives you a 0.2% average FPS lead across 50 shared CPU game tests in our data and 3.8% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Athlon 64 FX-55 is the better pick. According to our tests, it delivers 0.2% 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, Athlon 64 FX-55 is the stronger fit. You are getting 3.8% better PassMark, backed by 1 cores and 1 threads.

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

Athlon 64 FX-55 is the better buy right now. Athlon 64 FX-55 comes in at an unclear MSRP at $827 MSRP versus unclear MSRP, and it still gives you a 0.2% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (0.8 vs 0.0 PassMark/$), 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 E3827 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2013 vs 2004). That makes it the safer long-term bet.

Athlon 64 FX-55 vs Atom E3827 Technical Specifications

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

Athlon 64 FX-55

The Athlon 64 FX-55 is manufactured by AMD. It was released in 10 October 2004 (21 years ago). It is based on the Clawhammer (2001−2005) architecture. It features 1 cores and 1 threads. Base frequency is 2.6 GHz, with boost up to 2.6 GHz. L3 cache: 0 kB. L2 cache: 1 MB. Built on 130 nm process technology. Socket: 939. Thermal design power (TDP): 104 Watt. Memory support: DDR1 Depends on motherboard. Passmark benchmark score: 690 points. Launch price was $180.

Atom E3827

The Atom E3827 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 2 cores and 2 threads. Max frequency: 1.75 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 22 nm process technology. Socket: FCBGA1170. Thermal design power (TDP): 8 Watt. Memory support: DDR3. Passmark benchmark score: 665 points. Launch price was $69.

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Processing Power

The Athlon 64 FX-55 packs 1 cores / 1 threads, while the Atom E3827 offers 2 cores / 2 threads — the Atom E3827 has 1 more core. Boost clocks reach 2.6 GHz on the Athlon 64 FX-55 versus 1.75 GHz on the Atom E3827 — a 39.1% clock advantage for the Athlon 64 FX-55. The Athlon 64 FX-55 uses the Clawhammer (2001−2005) architecture (130 nm), while the Atom E3827 uses Bay Trail-I (2013) (22 nm). In PassMark, the Athlon 64 FX-55 scores 690 against the Atom E3827's 665 — a 3.7% lead for the Athlon 64 FX-55. Both processors carry 0 kB of L3 cache.

Feature	Athlon 64 FX-55	Atom E3827
Cores / Threads	1 / 1	2 / 2+100%
Boost Clock	2.6 GHz+49%	1.75 GHz
Base Clock	2.6 GHz	—
L3 Cache	0 kB	0 kB
L2 Cache	1 MB+100%	512 kB (per core)
Process	130 nm	22 nm-83%
Architecture	Clawhammer (2001−2005)	Bay Trail-I (2013)
PassMark	690+4%	665

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Memory & Platform

The Athlon 64 FX-55 uses the 939 socket (PCIe 1.1), while the Atom E3827 uses FCBGA1170 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR1-400 on the Athlon 64 FX-55 versus DDR3L-1333 on the Atom E3827 — the Atom E3827 supports 233.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Atom E3827 supports up to 8 GB of RAM compared to 4 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Athlon 64 FX-55) vs 4 (Atom E3827) — the Atom E3827 offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: nForce3,nForce4,Xpress 200 (Athlon 64 FX-55) and Intel FCBGA1170 (Atom E3827).

Feature	Athlon 64 FX-55	Atom E3827
Socket	939	FCBGA1170
PCIe Generation	PCIe 1.1	PCIe 2.0+82%
Max RAM Speed	DDR1-400	DDR3L-1333+233%
Max RAM Capacity	4 GB	8 GB+100%
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	0	4