Core i7-640UM vs Pentium T4400

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 i7-640UM vs Pentium T4400 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 i7-640UM vs Pentium T4400: Pros, Cons & Final Verdict

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

Core i7-640UM

2010

Why buy it

✅+300% larger total L3 cache (4 MB vs 1 MB).
✅Draws 18W instead of 35W, a 17W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel HD Graphics (Ironlake), while Pentium T4400 needs a discrete GPU.

Trade-offs

❌Lower Geekbench single-core performance for gaming (226 vs 249).
❌Lower PassMark (1,168 vs 1,175).

Pentium T4400

2009

Why buy it

✅+10.2% higher Geekbench single-core performance for gaming and desktop responsiveness.

Trade-offs

❌Smaller total L3 cache (1 MB vs 4 MB).
❌Launch MSRP is still $107 MSRP, while Core i7-640UM mostly shows up through inconsistent older-market listings.
❌94.4% higher power demand at 35W vs 18W.
❌No integrated graphics, while Core i7-640UM can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Pentium T4400 better than Core i7-640UM?

Yes. Pentium T4400 is the better all-around CPU here. It gives you a 2.7% average FPS lead across 50 shared CPU game tests in our data and 0.6% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Pentium T4400 is the better pick. According to our tests, it delivers 2.7% 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, Pentium T4400 is the stronger fit. You are getting 0.6% better PassMark.

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

Pentium T4400 is the better buy right now. Pentium T4400 comes in at an unclear MSRP at $107 MSRP versus unclear MSRP, and it still gives you a 2.7% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (11.0 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Core i7-640UM makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2010 vs 2009) and 300% larger total L3 cache (4 MB vs 1 MB). That makes it the safer long-term bet.

Core i7-640UM vs Pentium T4400 Technical Specifications

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

Core i7-640UM

The Core i7-640UM is manufactured by Intel. It was released in 7 January 2010 (15 years ago). It is based on the Arrandale (2010−2011) architecture. It features 2 cores and 4 threads. Base frequency is 1.2 GHz, with boost up to 2.27 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: BGA1288. Thermal design power (TDP): 18 Watt. Memory support: DDR3-800. Passmark benchmark score: 1,168 points. Launch price was $305.

Pentium T4400

The Pentium T4400 is manufactured by Intel. It was released in 2007-01-01. Base frequency: 2.2 GHz. L3 cache: 1 MB L2 Cache. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 35 Watt. Passmark benchmark score: 1,175 points. Launch price was $69.

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Processing Power

The Core i7-640UM is built on the Arrandale (2010−2011) architecture. In PassMark, the Core i7-640UM scores 1,168 against the Pentium T4400's 1,175 — a 0.6% lead for the Pentium T4400. Geekbench 6 single-core — the metric most relevant to gaming — records 226 vs 249, a 9.7% lead for the Pentium T4400 that directly translates to higher frame rates. L3 cache: 4 MB (total) on the Core i7-640UM vs 1 MB L2 Cache on the Pentium T4400.

Feature	Core i7-640UM	Pentium T4400
Cores / Threads	2 / 4	—
Boost Clock	2.27 GHz	—
Base Clock	1.2 GHz	2.2 GHz+83%
L3 Cache	4 MB (total)+300%	1 MB L2 Cache
L2 Cache	256 kB (per core)	—
Process	32 nm-29%	45 nm
Architecture	Arrandale (2010−2011)	—
PassMark	1,168	1,175
Geekbench 6 Single	226	249+10%
Geekbench 6 Multi	590	—

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Memory & Platform

The Core i7-640UM uses the BGA1288 socket (PCIe 2.0), while the Pentium T4400 uses PGA478 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1066 on the Core i7-640UM versus DDR3-800 on the Pentium T4400 — the Core i7-640UM supports 33.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 8 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core i7-640UM) vs 0 (Pentium T4400) — the Core i7-640UM offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: HM55,QM57 (Core i7-640UM) and GL40,GM45 (Pentium T4400).

Feature	Core i7-640UM	Pentium T4400
Socket	BGA1288	PGA478
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	DDR3-1066+33%	DDR3-800
Max RAM Capacity	8 GB	8 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16	0

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Advanced Features

Neither processor supports overclocking. Virtualization support: VT-x, VT-d (Core i7-640UM) vs None (Pentium T4400). The Core i7-640UM includes integrated graphics (Intel HD Graphics (Ironlake)), while the Pentium T4400 requires a dedicated GPU. Primary use case: Core i7-640UM targets Legacy Laptop, Pentium T4400 targets Budget. Direct competitor: Core i7-640UM rivals Core 2 Duo SU9600; Pentium T4400 rivals AMD A4-3300M.