Celeron 3965U vs Phenom II X4 900e

Celeron 3965U vs Phenom II X4 900e Performance Spectrum

Celeron 3965U

2 / 2

1,753

+1.5%

Celeron P4600

Celeron Dual-Core T3100

1,727

0.0%

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 3965U vs Phenom II X4 900e 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 3965U vs Phenom II X4 900e: Pros, Cons & Final Verdict

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

Celeron 3965U

2017

Why buy it

✅Better for gaming: +3.5% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 15W instead of 65W, a 50W reduction.
✅100+% more PCIe lanes (10 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel HD Graphics 610, while Phenom II X4 900e needs a discrete GPU.

Trade-offs

❌Smaller total L3 cache (2 MB vs 6 MB).

Phenom II X4 900e

2009

Why buy it

✅+200% larger total L3 cache (6 MB vs 2 MB).

Trade-offs

❌Worse for gaming: lower average FPS than Celeron 3965U across 50 shared CPU benchmark tests.
❌Lower PassMark (1,727 vs 1,753).
❌333.3% higher power demand at 65W vs 15W.
❌No integrated graphics, while Celeron 3965U can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Celeron 3965U better than Phenom II X4 900e?

Yes. Celeron 3965U is the better all-around CPU here. It gives you a 3.5% average FPS lead across 50 shared CPU game tests in our data, 1.5% 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 3965U is the better pick. According to our tests, it delivers 3.5% 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, Celeron 3965U is the stronger fit. You are getting 1.5% better PassMark, backed by 2 cores and 2 threads.

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

Celeron 3965U still makes the most sense overall. Celeron 3965U comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 3.5% average FPS lead across 50 shared CPU game tests in our data.

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

Celeron 3965U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2017 vs 2009) and more multi-core headroom with 2 cores / 2 threads instead of 4/4. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Celeron 3965U vs Phenom II X4 900e Technical Specifications

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

Celeron 3965U

The Celeron 3965U is manufactured by Intel. It was released in 3 January 2017 (8 years ago). It is based on the Kaby Lake-U (2017) architecture. It features 2 cores and 2 threads. Base frequency is 2.2 GHz, with boost up to 2.2 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: BGA1356. Thermal design power (TDP): 15 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 1,753 points. Launch price was $107.

Phenom II X4 900e

The Phenom II X4 900e is manufactured by AMD. It was released in 2009-01-01. It is based on the Deneb (2009−2011) architecture. It features 4 cores and 4 threads. Base frequency is 2.4 GHz, with boost up to 2.4 GHz. L3 cache: 6 MB (total). L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,727 points. Launch price was $149.

⚡

Processing Power

The Celeron 3965U packs 2 cores / 2 threads, while the Phenom II X4 900e offers 4 cores / 4 threads — the Phenom II X4 900e has 2 more cores. Boost clocks reach 2.2 GHz on the Celeron 3965U versus 2.4 GHz on the Phenom II X4 900e — a 8.7% clock advantage for the Phenom II X4 900e (base: 2.2 GHz vs 2.4 GHz). The Celeron 3965U uses the Kaby Lake-U (2017) architecture (14 nm), while the Phenom II X4 900e uses Deneb (2009−2011) (45 nm). In PassMark, the Celeron 3965U scores 1,753 against the Phenom II X4 900e's 1,727 — a 1.5% lead for the Celeron 3965U. L3 cache: 2 MB (total) on the Celeron 3965U vs 6 MB (total) on the Phenom II X4 900e.

Feature	Celeron 3965U	Phenom II X4 900e
Cores / Threads	2 / 2	4 / 4+100%
Boost Clock	2.2 GHz	2.4 GHz+9%
Base Clock	2.2 GHz	2.4 GHz+9%
L3 Cache	2 MB (total)	6 MB (total)+200%
L2 Cache	256K (per core)	512 kB (per core)+100%
Process	14 nm-69%	45 nm
Architecture	Kaby Lake-U (2017)	Deneb (2009−2011)
PassMark	1,753+2%	1,727
Geekbench 6 Single	600	—
Geekbench 6 Multi	1,200	—

🧠

Memory & Platform

The Celeron 3965U uses the BGA1356 socket (PCIe 3.0), while the Phenom II X4 900e uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Celeron 3965U	Phenom II X4 900e
Socket	BGA1356	AM3
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	10	—

🔧

Advanced Features

Virtualization: VT-x (Celeron 3965U) / not specified (Phenom II X4 900e). The Celeron 3965U includes integrated graphics (Intel HD Graphics 610), while the Phenom II X4 900e requires a dedicated GPU. Primary use case: Celeron 3965U targets Budget Laptop. Direct competitor: Celeron 3965U rivals Pentium Gold 4415U.