Core 2 Duo T9900 vs Pentium N3540

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.

Core 2 Duo T9900 vs Pentium N3540 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.

Core 2 Duo T9900 vs Pentium N3540: Pros, Cons & Final Verdict

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

Core 2 Duo T9900

2009

Why buy it

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

Trade-offs

❌Lower PassMark (1,204 vs 1,207).
❌1650% higher power demand at 35W vs 2W.

Pentium N3540

2014

Why buy it

✅Draws 2W instead of 35W, a 33W reduction.

Trade-offs

❌Smaller total L3 cache (2 MB vs 6 MB).
❌Launch MSRP is still $161 MSRP, while Core 2 Duo T9900 mostly shows up through inconsistent older-market listings.

Quick Answers

So, is Pentium N3540 better than Core 2 Duo T9900?

Yes. Pentium N3540 is the better all-around CPU here. It gives you a 0.1% average FPS lead across 48 shared CPU game tests in our data, 0.2% 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, Pentium N3540 is the better pick. According to our tests, it delivers 0.1% 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, Pentium N3540 is the stronger fit. You are getting 0.2% better PassMark, backed by 4 cores and 4 threads.

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

Pentium N3540 is the better buy right now. Pentium N3540 comes in at an unclear MSRP at $161 MSRP versus unclear MSRP, and it still gives you a 0.1% average FPS lead across 48 shared CPU game tests in our data. It is also 100.0% better value on MSRP (7.5 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Pentium N3540 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2014 vs 2009) and more multi-core headroom with 4 cores / 4 threads instead of 2/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core 2 Duo T9900 vs Pentium N3540 Technical Specifications

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

Core 2 Duo T9900

The Core 2 Duo T9900 is manufactured by Intel. It was released in 2 June 2009 (16 years ago). It is based on the Penryn (2008−2011) architecture. It features 2 cores and 2 threads. Base frequency is 3.06 GHz, with boost up to 0.07 GHz. L3 cache: 6 MB L2 Cache. L2 cache: 6 MB (total). Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 35 Watt. Memory support: DDR2, DDR3. Passmark benchmark score: 1,204 points. Launch price was $530.

Pentium N3540

The Pentium N3540 is manufactured by Intel. It was released in 22 May 2014 (11 years ago). It is based on the Bay Trail-M (2013−2014) architecture. It features 4 cores and 4 threads. Base frequency is 2.16 GHz, with boost up to 2.66 GHz. L3 cache: 2 MB L2 Cache. L2 cache: 2 MB. Built on 22 nm process technology. Socket: FCBGA1170. Thermal design power (TDP): 7.5 Watt. Memory support: DDR3L-1333. Passmark benchmark score: 1,207 points. Launch price was $251.

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Processing Power

The Core 2 Duo T9900 packs 2 cores / 2 threads, while the Pentium N3540 offers 4 cores / 4 threads — the Pentium N3540 has 2 more cores. Boost clocks reach 0.07 GHz on the Core 2 Duo T9900 versus 2.66 GHz on the Pentium N3540 — a 189.7% clock advantage for the Pentium N3540 (base: 3.06 GHz vs 2.16 GHz). The Core 2 Duo T9900 uses the Penryn (2008−2011) architecture (45 nm), while the Pentium N3540 uses Bay Trail-M (2013−2014) (22 nm). In PassMark, the Core 2 Duo T9900 scores 1,204 against the Pentium N3540's 1,207 — a 0.2% lead for the Pentium N3540. L3 cache: 6 MB L2 Cache on the Core 2 Duo T9900 vs 2 MB L2 Cache on the Pentium N3540.

Feature	Core 2 Duo T9900	Pentium N3540
Cores / Threads	2 / 2	4 / 4+100%
Boost Clock	0.07 GHz	2.66 GHz+3700%
Base Clock	3.06 GHz+42%	2.16 GHz
L3 Cache	6 MB L2 Cache+200%	2 MB L2 Cache
L2 Cache	6 MB (total)+200%	2 MB
Process	45 nm	22 nm-51%
Architecture	Penryn (2008−2011)	Bay Trail-M (2013−2014)
PassMark	1,204	1,207

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Memory & Platform

The Core 2 Duo T9900 uses the PGA478 socket (PCIe 1.1), while the Pentium N3540 uses FCBGA1170 (PCIe 2.0) — making them incompatible on the same motherboard.