Celeron 450 vs Opteron 146

Celeron 450 vs Opteron 146 Performance Spectrum

Celeron 450

1 / 1

495

0.0%

505

+2.0%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

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.

Celeron 450 vs Opteron 146 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.

Celeron 450 vs Opteron 146: Pros, Cons & Final Verdict

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

Celeron 450

2008

Why buy it

✅Draws 35W instead of 89W, a 54W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Opteron 146 across 48 shared CPU benchmark tests.
❌Lower PassMark (495 vs 505).
❌Launch MSRP is still $53 MSRP, while Opteron 146 mostly shows up through inconsistent older-market listings.

Opteron 146

2003

Why buy it

✅Better for gaming: +8.4% higher average FPS across 48 shared CPU benchmark tests.

Trade-offs

❌154.3% higher power demand at 89W vs 35W.

Quick Answers

So, is Opteron 146 better than Celeron 450?

Not really, because they are built for different jobs. Opteron 146 makes more sense for workstation-style multi-core throughput, while Celeron 450 is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Opteron 146 is the better pick. According to our tests, it delivers 8.4% more average FPS across 48 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Opteron 146 is the stronger fit. You are getting 2% better PassMark, backed by 1 cores and 1 threads.

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

Opteron 146 is still the much better call for a fresh build. Opteron 146 comes in at an unclear MSRP at unclear MSRP versus $53 MSRP, and it still gives you a 8.4% average FPS lead across 48 shared CPU game tests in our data. Celeron 450 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2008 platform. Even with 100.0% better value on paper (9.3 vs 0.0 PassMark/$), 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?

Celeron 450 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2008 vs 2003). That makes it the safer long-term bet.

Celeron 450 vs Opteron 146 Technical Specifications

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

Celeron 450

The Celeron 450 is manufactured by Intel. It was released in 31 August 2008 (17 years ago). It is based on the Conroe-L (2007−2008) architecture. It features 1 cores and 1 threads. Base frequency is 2.2 GHz, with boost up to 2.2 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 35 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 495 points. Launch price was $53.

Opteron 146

The Opteron 146 is manufactured by AMD. It was released in Setembro 2003 (22 years ago). It is based on the SledgeHammer (2003−2005) architecture. It features 1 cores and 1 threads. Max frequency: 2 GHz. L3 cache: 0 kB. L2 cache: 1 MB. Built on 130 nm process technology. Socket: 940. Thermal design power (TDP): 89 Watt. Passmark benchmark score: 505 points. Launch price was $60.

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Processing Power

Both the Celeron 450 and Opteron 146 share an identical 1-core/1-thread configuration. Boost clocks reach 2.2 GHz on the Celeron 450 versus 2 GHz on the Opteron 146 — a 9.5% clock advantage for the Celeron 450. The Celeron 450 uses the Conroe-L (2007−2008) architecture (65 nm), while the Opteron 146 uses SledgeHammer (2003−2005) (130 nm). In PassMark, the Celeron 450 scores 495 against the Opteron 146's 505 — a 2% lead for the Opteron 146. Both processors carry 0 kB of L3 cache.

Feature	Celeron 450	Opteron 146
Cores / Threads	1 / 1	1 / 1
Boost Clock	2.2 GHz+10%	2 GHz
Base Clock	2.2 GHz	—
L3 Cache	0 kB	0 kB
L2 Cache	512 kB	1 MB+100%
Process	65 nm-50%	130 nm
Architecture	Conroe-L (2007−2008)	SledgeHammer (2003−2005)
PassMark	495	505+2%
Geekbench 6 Multi	269	—

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Memory & Platform

The Celeron 450 uses the LGA775 socket (PCIe 1.1), while the Opteron 146 uses 940 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Celeron 450	Opteron 146
Socket	LGA775	940
PCIe Generation	PCIe 1.1	PCIe 2.0+82%
Max RAM Speed	DDR2-800	—
Max RAM Capacity	4 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	0	—

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Advanced Features

Virtualization: No (Celeron 450) / not specified (Opteron 146). Primary use case: Celeron 450 targets Budget. Direct competitor: Celeron 450 rivals Pentium 4 2.80.