Core 2 Duo T9550 vs Core i5-540M

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 T9550 vs Core i5-540M 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 T9550 vs Core i5-540M: 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 T9550

2009

Why buy it

✅+0.4% higher PassMark.
✅+100% larger total L3 cache (6 MB vs 3 MB).
✅Draws 6W instead of 35W, a 29W reduction.

Trade-offs

❌No integrated graphics, while Core i5-540M can still boot and troubleshoot without a discrete GPU.

Core i5-540M

2010

Why buy it

✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel HD Graphics, while Core 2 Duo T9550 needs a discrete GPU.

Trade-offs

❌Lower PassMark (1,796 vs 1,804).
❌Smaller total L3 cache (3 MB vs 6 MB).
❌483.3% higher power demand at 35W vs 6W.

Quick Answers

So, is Core 2 Duo T9550 better than Core i5-540M?

It depends on what you want from the system. For gaming, Core i5-540M is ahead with a 0.0% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core 2 Duo T9550 pulls ahead with 0.4% better PassMark. Core 2 Duo T9550 also has the bigger cache pool with 100% larger total L3 cache (6 MB vs 3 MB).

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Core 2 Duo T9550 is the stronger fit. You are getting 0.4% better PassMark, backed by 2 cores and 2 threads. It also has the larger cache pool with 100% larger total L3 cache (6 MB vs 3 MB).

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

Core 2 Duo T9550 still makes the most sense overall. Core 2 Duo T9550 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 0.4% better PassMark.

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

Core i5-540M makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2010 vs 2009). That makes it the safer long-term bet.

Core 2 Duo T9550 vs Core i5-540M Technical Specifications

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

Core 2 Duo T9550

The Core 2 Duo T9550 is manufactured by Intel. It was released in 1 January 2009 (16 years ago). It is based on the Penryn (2008−2011) architecture. It features 2 cores and 2 threads. Base frequency is 2.66 GHz, with boost up to 2.66 GHz. L3 cache: 6 MB L2 Cache. L2 cache: 6 MB. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 35 Watt. Passmark benchmark score: 1,804 points. Launch price was $316.

Core i5-540M

The Core i5-540M 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 2.53 GHz, with boost up to 3.07 GHz. L3 cache: 3 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: PGA988. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 1,796 points. Launch price was $257.

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Processing Power

The Core 2 Duo T9550 packs 2 cores / 2 threads, matching the Core i5-540M's 2 cores. Boost clocks reach 2.66 GHz on the Core 2 Duo T9550 versus 3.07 GHz on the Core i5-540M — a 14.3% clock advantage for the Core i5-540M (base: 2.66 GHz vs 2.53 GHz). The Core 2 Duo T9550 uses the Penryn (2008−2011) architecture (45 nm), while the Core i5-540M uses Arrandale (2010−2011) (32 nm). In PassMark, the Core 2 Duo T9550 scores 1,804 against the Core i5-540M's 1,796 — a 0.4% lead for the Core 2 Duo T9550. L3 cache: 6 MB L2 Cache on the Core 2 Duo T9550 vs 3 MB (total) on the Core i5-540M.

Feature	Core 2 Duo T9550	Core i5-540M
Cores / Threads	2 / 2	2 / 4
Boost Clock	2.66 GHz	3.07 GHz+15%
Base Clock	2.66 GHz+5%	2.53 GHz
L3 Cache	6 MB L2 Cache+100%	3 MB (total)
L2 Cache	6 MB	256K (per core)+4167%
Process	45 nm	32 nm-29%
Architecture	Penryn (2008−2011)	Arrandale (2010−2011)
PassMark	1,804	1,796
Geekbench 6 Single	—	300
Geekbench 6 Multi	—	700

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Memory & Platform

The Core 2 Duo T9550 uses the PGA478 socket (PCIe 1.1), while the Core i5-540M uses PGA988 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Core 2 Duo T9550	Core i5-540M
Socket	PGA478	PGA988
PCIe Generation	PCIe 1.1	PCIe 2.0+82%
Max RAM Speed	—	DDR3-1066
Max RAM Capacity	—	8 GB
RAM Channels	—	2
ECC Support	—	No
PCIe Lanes	—	16

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Advanced Features

Virtualization: not specified (Core 2 Duo T9550) / VT-x, VT-d (Core i5-540M). The Core i5-540M includes integrated graphics (Intel HD Graphics), while the Core 2 Duo T9550 requires a dedicated GPU. Primary use case: Core i5-540M targets Mainstream Laptop. Direct competitor: Core i5-540M rivals AMD Turion II Ultra M660.