Athlon 64 2800+ vs Celeron 420

Athlon 64 2800+ vs Celeron 420 Performance Spectrum

Athlon 64 2800+

1 / 1

420

0.0%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Celeron 420

1 / 1

425

+1.2%

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 2800+ vs Celeron 420 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 2800+ vs Celeron 420: 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 2800+

2004

Why buy it

Trade-offs

❌Worse for gaming: lower average FPS than Celeron 420 across 50 shared CPU benchmark tests.
❌Lower PassMark (420 vs 425).
❌Lower PassMark per dollar, at 2.4 vs 10.9 PassMark/$ ($178 MSRP vs $39 MSRP).
❌154.3% higher power demand at 89W vs 35W.

Celeron 420

2007

Why buy it

✅Better for gaming: +9.6% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $139 less on MSRP ($39 MSRP vs $178 MSRP).
✅Delivers 361.8% more PassMark for each dollar spent, at 10.9 vs 2.4 PassMark/$ ($39 MSRP vs $178 MSRP).
✅Draws 35W instead of 89W, a 54W reduction.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Quick Answers

So, is Celeron 420 better than Athlon 64 2800+?

Yes. Celeron 420 is the better all-around CPU here. It gives you a 9.6% average FPS lead across 50 shared CPU game tests in our data, 1.2% 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, Celeron 420 is the better pick. According to our tests, it delivers 9.6% 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, Celeron 420 is the stronger fit. You are getting 1.2% better PassMark, backed by 1 cores and 1 threads.

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

Celeron 420 is the better buy right now. Celeron 420 comes in $139 cheaper on MSRP at $39 MSRP versus $178 MSRP, and it still gives you a 9.6% average FPS lead across 50 shared CPU game tests in our data. It is also 361.8% better value on MSRP (10.9 vs 2.4 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Celeron 420 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2007 vs 2004) 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 64 2800+ vs Celeron 420 Technical Specifications

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

Athlon 64 2800+

The Athlon 64 2800+ is manufactured by AMD. It was released in Abril 2004 (21 years ago). It is based on the NewCastle (2004) architecture. It features 1 cores and 1 threads. Max frequency: 1.8 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 130 nm process technology. Socket: 754. Thermal design power (TDP): 89 Watt. Passmark benchmark score: 420 points. Launch price was $100.

Celeron 420

The Celeron 420 is manufactured by Intel. It was released in 3 June 2007 (18 years ago). It is based on the Conroe-L (2007−2008) architecture. It features 1 cores and 1 threads. Base frequency is 1.6 GHz, with boost up to 1.6 GHz. L3 cache: 0 kB. L2 cache: 512 kB (total). Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 35 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 425 points. Launch price was $23.

⚡

Processing Power

Both the Athlon 64 2800+ and Celeron 420 share an identical 1-core/1-thread configuration. Boost clocks reach 1.8 GHz on the Athlon 64 2800+ versus 1.6 GHz on the Celeron 420 — a 11.8% clock advantage for the Athlon 64 2800+. The Athlon 64 2800+ uses the NewCastle (2004) architecture (130 nm), while the Celeron 420 uses Conroe-L (2007−2008) (65 nm). In PassMark, the Athlon 64 2800+ scores 420 against the Celeron 420's 425 — a 1.2% lead for the Celeron 420. Both processors carry 0 kB of L3 cache.

Feature	Athlon 64 2800+	Celeron 420
Cores / Threads	1 / 1	1 / 1
Boost Clock	1.8 GHz+12%	1.6 GHz
Base Clock	—	1.6 GHz
L3 Cache	0 kB	0 kB
L2 Cache	512 kB	512 kB (total)
Process	130 nm	65 nm-50%
Architecture	NewCastle (2004)	Conroe-L (2007−2008)
PassMark	420	425+1%

🧠

Memory & Platform

The Athlon 64 2800+ uses the 754 socket (PCIe 1.1), while the Celeron 420 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR-400 on the Athlon 64 2800+ versus DDR2-800 on the Celeron 420 — the Celeron 420 supports -300% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron 420 supports up to 16 GB of RAM compared to 4 GB — 300% more capacity for professional workloads. Memory channels: 1 (Athlon 64 2800+) vs 2 (Celeron 420). Both provide 0 PCIe lanes. Chipset compatibility: AMD 754 (Athlon 64 2800+) and 945,G31,G41 (Celeron 420).

Feature	Athlon 64 2800+	Celeron 420
Socket	754	LGA775
PCIe Generation	PCIe 1.1	PCIe 1.1
Max RAM Speed	DDR-400	DDR2-800
Max RAM Capacity	4 GB	16 GB+300%
RAM Channels	1	2+100%
ECC Support	No	No
PCIe Lanes	0	0

🔧

Advanced Features

Virtualization: not specified (Athlon 64 2800+) / No (Celeron 420). Primary use case: Celeron 420 targets Budget. Direct competitor: Celeron 420 rivals Pentium 4 2.80.

Feature	Athlon 64 2800+	Celeron 420
Integrated GPU	No	No
Unlocked	—	No
AVX-512	—	No
Virtualization	—	No
Target Use	—	Budget

💰

Value Analysis

At launch, the Athlon 64 2800+ was priced at $178, while the Celeron 420 came in at $39. On launch pricing ($178 vs $39), Celeron 420 was $139 cheaper. In terms of value on MSRP (PassMark points per dollar), the Athlon 64 2800+ delivers 2.4 pts/$ vs 10.9 pts/$ for the Celeron 420 — making the Celeron 420 the 128.8% better value option.

Feature	Athlon 64 2800+	Celeron 420
MSRP	$178	$39-78%
Performance per Dollar	2.4	10.9+354%
Release Date	2004	2007

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