Athlon XP 2600+ vs Atom E3815

Athlon XP 2600+ vs Atom E3815 Performance Spectrum

Athlon XP 2600+

1 / 1

340

0.0%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Atom E3815

1 / 1

365

+7.4%

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 XP 2600+ vs Atom E3815 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 XP 2600+ vs Atom E3815: Pros, Cons & Final Verdict

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

Athlon XP 2600+

2001

Why buy it

✅Draws 68W instead of 512W, a 444W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Atom E3815 across 50 shared CPU benchmark tests.
❌Lower PassMark (340 vs 365).
❌Launch MSRP is still $98 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.

Atom E3815

2013

Why buy it

✅Better for gaming: +12.5% higher average FPS across 50 shared CPU benchmark tests.
✅100+% more PCIe lanes (4 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel HD Graphics (Bay Trail), while Athlon XP 2600+ needs a discrete GPU.

Trade-offs

❌652.9% higher power demand at 512W vs 68W.

Quick Answers

So, is Atom E3815 better than Athlon XP 2600+?

Yes. Atom E3815 is the better all-around CPU here. It gives you a 12.5% average FPS lead across 50 shared CPU game tests in our data, 7.4% 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 E3815 is the better pick. According to our tests, it delivers 12.5% 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 E3815 is the stronger fit. You are getting 7.4% better PassMark, backed by 1 cores and 1 threads.

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

Atom E3815 is still the much better call for a fresh build. Atom E3815 comes in at an unclear MSRP at unclear MSRP versus $98 MSRP, and it still gives you a 12.5% average FPS lead across 50 shared CPU game tests in our data. Athlon XP 2600+ only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2001 platform. Even with 100.0% better value on paper (3.5 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on A.

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) and more multi-core headroom with 1 cores / 1 threads instead of 1/1. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Athlon XP 2600+ vs Atom E3815 Technical Specifications

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

Athlon XP 2600+

The Athlon XP 2600+ is manufactured by AMD. It was released in Janeiro 2001 (24 years ago). It is based on the Barton (2001−2004) architecture. It features 1 cores and 1 threads. Max frequency: 1.92 GHz. L3 cache: 0 kB. L2 cache: 512K. Built on 130 nm process technology. Socket: A. Thermal design power (TDP): 68 Watt. Passmark benchmark score: 340 points. Launch price was $23.

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.

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Processing Power

Both the Athlon XP 2600+ and Atom E3815 share an identical 1-core/1-thread configuration. Boost clocks reach 1.92 GHz on the Athlon XP 2600+ versus 1.47 GHz on the Atom E3815 — a 26.5% clock advantage for the Athlon XP 2600+. The Athlon XP 2600+ uses the Barton (2001−2004) architecture (130 nm), while the Atom E3815 uses Bay Trail-I (2013) (22 nm). In PassMark, the Athlon XP 2600+ scores 340 against the Atom E3815's 365 — a 7.1% lead for the Atom E3815. Both processors carry 0 kB of L3 cache.

Feature	Athlon XP 2600+	Atom E3815
Cores / Threads	1 / 1	1 / 1
Boost Clock	1.92 GHz+31%	1.47 GHz
L3 Cache	0 kB	0 kB
L2 Cache	512K	512 kB (per core)
Process	130 nm	22 nm-83%
Architecture	Barton (2001−2004)	Bay Trail-I (2013)
PassMark	340	365+7%

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Memory & Platform

The Athlon XP 2600+ uses the A socket (PCIe 1.1), while the Atom E3815 uses FCBGA1170 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR-333 on the Athlon XP 2600+ versus DDR3L-1066 on the Atom E3815 — the Atom E3815 supports -420.1% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Atom E3815 supports up to 8 GB of RAM compared to 4 GB — 100% more capacity for professional workloads. Both feature 1-channel memory with ECC support. PCIe lanes: 0 (Athlon XP 2600+) vs 4 (Atom E3815) — the Atom E3815 offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD Socket A (Athlon XP 2600+) and Intel FCBGA1170 (Atom E3815).

Feature	Athlon XP 2600+	Atom E3815
Socket	A	FCBGA1170
PCIe Generation	PCIe 1.1	PCIe 2.0+82%
Max RAM Speed	DDR-333	DDR3L-1066
Max RAM Capacity	4 GB	8 GB+100%
RAM Channels	1	1
ECC Support	Yes	Yes
PCIe Lanes	0	4