Athlon 64 3400+ vs Sempron 3800+

AMD

Athlon 64 3400+

1 Cores1 Thrd89 WWMax: 2.4 GHz2001
Similar parts
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VS
AMD

Sempron 3800+

1 Cores1 Thrd62 WWMax: 2.2 GHz2006

Athlon 64 3400+ vs Sempron 3800+ Performance Spectrum

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 3400+ vs Sempron 3800+ 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 3400+ vs Sempron 3800+: 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 3400+

2001

Why buy it

  • Better for gaming: +7.7% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

  • Launch MSRP is still $440 MSRP, while Sempron 3800+ mostly shows up through inconsistent older-market listings.
  • 43.5% higher power demand at 89W vs 62W.

Sempron 3800+

2006

Why buy it

  • Draws 62W instead of 89W, a 27W reduction.

Trade-offs

  • Worse for gaming: lower average FPS than Athlon 64 3400+ across 50 shared CPU benchmark tests.
  • Lower PassMark (528 vs 545).

Quick Answers

So, is Athlon 64 3400+ better than Sempron 3800+?
Yes. Athlon 64 3400+ is the better all-around CPU here. It gives you a 7.7% average FPS lead across 50 shared CPU game tests in our data and 3.2% 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 3400+ is the better pick. According to our tests, it delivers 7.7% 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 3400+ is the stronger fit. You are getting 3.2% better PassMark, backed by 1 cores and 1 threads.
Which one is the smarter buy today, not just the cheaper CPU?
Athlon 64 3400+ is the better buy right now. Athlon 64 3400+ comes in at an unclear MSRP at $440 MSRP versus unclear MSRP, and it still gives you a 7.7% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (1.2 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.
Which one is more future-proof for 2026 and beyond?
Sempron 3800+ makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2006 vs 2001). That makes it the safer long-term bet.

Athlon 64 3400+ vs Sempron 3800+ Technical Specifications

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

AMD

Athlon 64 3400+

The Athlon 64 3400+ is manufactured by AMD. It was released in 2009-01-01. It is based on the Clawhammer (2001−2005) architecture. It features 1 cores and 1 threads. Max frequency: 2.4 GHz. L3 cache: 0 kB. L2 cache: 512K. Built on 130 nm process technology. Socket: 754. Thermal design power (TDP): 89 Watt. Passmark benchmark score: 545 points. Launch price was $149.

AMD

Sempron 3800+

The Sempron 3800+ is manufactured by AMD. It was released in Outubro 2006 (19 years ago). It is based on the Manila (2001−2006) architecture. It features 1 cores and 1 threads. Max frequency: 2.2 GHz. L3 cache: 0 kB. L2 cache: 256 kB. Built on 90 nm process technology. Socket: AM2. Thermal design power (TDP): 62 Watt. Passmark benchmark score: 528 points. Launch price was $21.

Processing Power

Both the Athlon 64 3400+ and Sempron 3800+ share an identical 1-core/1-thread configuration. Boost clocks reach 2.4 GHz on the Athlon 64 3400+ versus 2.2 GHz on the Sempron 3800+ — a 8.7% clock advantage for the Athlon 64 3400+. The Athlon 64 3400+ uses the Clawhammer (2001−2005) architecture (130 nm), while the Sempron 3800+ uses Manila (2001−2006) (90 nm). In PassMark, the Athlon 64 3400+ scores 545 against the Sempron 3800+'s 528 — a 3.2% lead for the Athlon 64 3400+. Both processors carry 0 kB of L3 cache.

FeatureAthlon 64 3400+Sempron 3800+
Cores / Threads
1 / 1
1 / 1
Boost Clock
2.4 GHz+9%
2.2 GHz
L3 Cache
0 kB
0 kB
L2 Cache
512K+100%
256 kB
Process
130 nm
90 nm-31%
Architecture
Clawhammer (2001−2005)
Manila (2001−2006)
PassMark
545+3%
528
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Memory & Platform

The Athlon 64 3400+ uses the 754 socket (PCIe 1.1), while the Sempron 3800+ uses AM2 (PCIe 2.0) — making them incompatible on the same motherboard.

FeatureAthlon 64 3400+Sempron 3800+
Socket
754
AM2
PCIe Generation
PCIe 1.1
PCIe 2.0+82%
Max RAM Speed
DDR-400
Max RAM Capacity
4 GB
RAM Channels
1
ECC Support
No
PCIe Lanes
0