Celeron 3955U vs Phenom X4 9450e

Celeron 3955U vs Phenom X4 9450e Performance Spectrum

Celeron 3955U

2 / 2

1,443

0.0%

Celeron 877

Celeron P4600

Xeon W3503

Pentium Dual Core T4400

1,455

+0.8%

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 3955U vs Phenom X4 9450e 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 3955U vs Phenom X4 9450e: Pros, Cons & Final Verdict

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

Celeron 3955U

2015

Why buy it

✅Draws 15W instead of 65W, a 50W reduction.
✅100+% more PCIe lanes (12 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with HD Graphics 510, while Phenom X4 9450e needs a discrete GPU.

Trade-offs

❌Lower PassMark (1,443 vs 1,455).

Phenom X4 9450e

2008

Why buy it

Trade-offs

❌Launch MSRP is still $450 MSRP, while Celeron 3955U mostly shows up through inconsistent older-market listings.
❌333.3% higher power demand at 65W vs 15W.
❌No integrated graphics, while Celeron 3955U can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Phenom X4 9450e better than Celeron 3955U?

Yes. Phenom X4 9450e is the better all-around CPU here. It gives you a 0.1% average FPS lead across 50 shared CPU game tests in our data and 0.8% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Phenom X4 9450e is the better pick. According to our tests, it delivers 0.1% 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, Phenom X4 9450e is the stronger fit. You are getting 0.8% better PassMark, backed by 4 cores and 4 threads.

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

Phenom X4 9450e is the better buy right now. Phenom X4 9450e comes in at an unclear MSRP at $450 MSRP versus unclear MSRP, and it still gives you a 0.1% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (3.2 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Celeron 3955U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2015 vs 2008). That makes it the safer long-term bet.

Celeron 3955U vs Phenom X4 9450e Technical Specifications

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

Celeron 3955U

The Celeron 3955U is manufactured by Intel. It was released in 15 August 2015 (10 years ago). It is based on the Skylake (2015−2016) architecture. It features 2 cores and 2 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 2 MB. L2 cache: 512 kB. Built on 14 nm process technology. Socket: BGA1356. Thermal design power (TDP): 15 Watt. Memory support: DDR4-1866/2133, LPDDR3-1600/1866, DDR3L-1333/1600. Passmark benchmark score: 1,443 points. Launch price was $107.

Phenom X4 9450e

The Phenom X4 9450e is manufactured by AMD. It was released in 2009-01-01. It is based on the Agena (2007−2008) architecture. It features 4 cores and 4 threads. Max frequency: 2.1 GHz. L3 cache: 2 MB (total). L2 cache: 512 kB (per core). Built on 65 nm process technology. Socket: AM2+. Thermal design power (TDP): 65 Watt. Passmark benchmark score: 1,455 points. Launch price was $149.

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Processing Power

The Celeron 3955U packs 2 cores / 2 threads, while the Phenom X4 9450e offers 4 cores / 4 threads — the Phenom X4 9450e has 2 more cores. Boost clocks reach 2 GHz on the Celeron 3955U versus 2.1 GHz on the Phenom X4 9450e — a 4.9% clock advantage for the Phenom X4 9450e. The Celeron 3955U uses the Skylake (2015−2016) architecture (14 nm), while the Phenom X4 9450e uses Agena (2007−2008) (65 nm). In PassMark, the Celeron 3955U scores 1,443 against the Phenom X4 9450e's 1,455 — a 0.8% lead for the Phenom X4 9450e. L3 cache: 2 MB on the Celeron 3955U vs 2 MB (total) on the Phenom X4 9450e.

Feature	Celeron 3955U	Phenom X4 9450e
Cores / Threads	2 / 2	4 / 4+100%
Boost Clock	2 GHz	2.1 GHz+5%
Base Clock	2 GHz	—
L3 Cache	2 MB	2 MB (total)
L2 Cache	512 kB	512 kB (per core)
Process	14 nm-78%	65 nm
Architecture	Skylake (2015−2016)	Agena (2007−2008)
PassMark	1,443	1,455
Geekbench 6 Single	431	—
Geekbench 6 Multi	741	—

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Memory & Platform

The Celeron 3955U uses the BGA1356 socket (PCIe 3.0), while the Phenom X4 9450e uses AM2+ (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Celeron 3955U	Phenom X4 9450e
Socket	BGA1356	AM2+
PCIe Generation	PCIe 3.0+50%	PCIe 2.0
Max RAM Speed	DDR4-2133	—
Max RAM Capacity	32 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	12	—

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Advanced Features

Virtualization: VT-x, VT-d (Celeron 3955U) / not specified (Phenom X4 9450e). The Celeron 3955U includes integrated graphics (HD Graphics 510), while the Phenom X4 9450e requires a dedicated GPU. Primary use case: Celeron 3955U targets Budget. Direct competitor: Celeron 3955U rivals Pentium 3825U.