Core 2 Duo T6400 vs Pentium G3440T

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 T6400 vs Pentium G3440T 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 T6400 vs Pentium G3440T: 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 T6400

2009

Why buy it

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

Trade-offs

❌Smaller total L3 cache (2 MB vs 3 MB).

Pentium G3440T

2014

Why buy it

✅+50% larger total L3 cache (3 MB vs 2 MB).

Trade-offs

❌Lower PassMark (2,107 vs 2,115).
❌1650% higher power demand at 35W vs 2W.

Quick Answers

So, is Core 2 Duo T6400 better than Pentium G3440T?

Yes. Core 2 Duo T6400 is the better all-around CPU here. It gives you a 1.3% average FPS lead across 50 shared CPU game tests in our data and 0.4% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core 2 Duo T6400 is the better pick. According to our tests, it delivers 1.3% 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, Core 2 Duo T6400 is the stronger fit. You are getting 0.4% better PassMark, backed by 2 cores and 2 threads.

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

Core 2 Duo T6400 still makes the most sense overall. Core 2 Duo T6400 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 1.3% average FPS lead across 50 shared CPU game tests in our data.

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

Pentium G3440T makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2014 vs 2009) and 50% larger total L3 cache (3 MB vs 2 MB). That makes it the safer long-term bet.

Core 2 Duo T6400 vs Pentium G3440T Technical Specifications

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

Core 2 Duo T6400

The Core 2 Duo T6400 is manufactured by Intel. It was released in 2008-01-01. It is based on the Penryn (2008−2011) 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. L2 cache: 2 MB. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 35 Watt. Passmark benchmark score: 2,115 points. Launch price was $249.

Pentium G3440T

The Pentium G3440T is manufactured by Intel. It was released in 2007-01-01. It features 2 cores and 2 threads. Base frequency: 2.8 GHz. L3 cache: 3 MB Intel® Smart Cache. Built on 22 nm process technology. Socket: LGA1150. Thermal design power (TDP): 35 Watt. Memory support: DDR3-1333/1600, DDR3L-1333/1600. Passmark benchmark score: 2,107 points. Launch price was $69.

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Processing Power

Both the Core 2 Duo T6400 and Pentium G3440T share an identical 2-core/2-thread configuration. The Core 2 Duo T6400 is built on the Penryn (2008−2011) architecture. In PassMark, the Core 2 Duo T6400 scores 2,115 against the Pentium G3440T's 2,107 — a 0.4% lead for the Core 2 Duo T6400. L3 cache: 2 MB L2 Cache on the Core 2 Duo T6400 vs 3 MB Intel® Smart Cache on the Pentium G3440T.

Feature	Core 2 Duo T6400	Pentium G3440T
Cores / Threads	2 / 2	2 / 2
Boost Clock	2 GHz	—
Base Clock	2 GHz	2.8 GHz+40%
L3 Cache	2 MB L2 Cache	3 MB Intel® Smart Cache+50%
L2 Cache	2 MB	—
Process	45 nm	22 nm-51%
Architecture	Penryn (2008−2011)	—
PassMark	2,115	2,107
Geekbench 6 Single	650	—
Geekbench 6 Multi	1,300	—

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Memory & Platform

The Core 2 Duo T6400 uses the PGA478 socket (PCIe 1.1), while the Pentium G3440T uses LGA1150 (PCIe 3.0) — making them incompatible on the same motherboard.