Core 2 Duo T6500 vs Core i5-2520M

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 T6500 vs Core i5-2520M 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 T6500 vs Core i5-2520M: 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 T6500

2009

Why buy it

✅+0.4% higher PassMark.
✅Draws 2W instead of 35W, a 33W reduction.

Trade-offs

❌Smaller total L3 cache (2 MB vs 3 MB).
❌No integrated graphics, while Core i5-2520M can still boot and troubleshoot without a discrete GPU.

Core i5-2520M

2011

Why buy it

✅+50% larger total L3 cache (3 MB vs 2 MB).
✅Integrated graphics onboard with Intel HD Graphics 3000, while Core 2 Duo T6500 needs a discrete GPU.

Trade-offs

❌Lower PassMark (2,241 vs 2,249).
❌Launch MSRP is still $225 MSRP, while Core 2 Duo T6500 mostly shows up through inconsistent older-market listings.
❌1650% higher power demand at 35W vs 2W.

Quick Answers

So, is Core i5-2520M better than Core 2 Duo T6500?

It depends on what you want from the system. For gaming, Core i5-2520M is ahead with a 2.7% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core 2 Duo T6500 pulls ahead with 0.4% better PassMark. Core i5-2520M also has the bigger cache pool with 50% larger total L3 cache (3 MB vs 2 MB).

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

For streaming, content creation, and heavier multitasking, Core 2 Duo T6500 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 i5-2520M is the better buy right now. Core i5-2520M comes in at an unclear MSRP at $225 MSRP versus unclear MSRP, and it still gives you a 2.7% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Core 2 Duo T6500 is still stronger for heavier multi-core work with 0.4% better PassMark. It is also 100.0% better value on MSRP (10.0 vs 0.0 PassMark/$), 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 i5-2520M makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2011 vs 2009) and 50% larger total L3 cache (3 MB vs 2 MB). That makes it the safer long-term bet.

Core 2 Duo T6500 vs Core i5-2520M Technical Specifications

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

Core 2 Duo T6500

The Core 2 Duo T6500 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 2.1 GHz, with boost up to 2.1 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: 2,249 points. Launch price was $249.

Core i5-2520M

The Core i5-2520M is manufactured by Intel. It was released in 1 February 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 4 threads. Base frequency is 2.5 GHz, with boost up to 3.2 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: 2,241 points. Launch price was $225.

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Processing Power

The Core 2 Duo T6500 packs 2 cores / 2 threads, matching the Core i5-2520M's 2 cores. Boost clocks reach 2.1 GHz on the Core 2 Duo T6500 versus 3.2 GHz on the Core i5-2520M — a 41.5% clock advantage for the Core i5-2520M (base: 2.1 GHz vs 2.5 GHz). The Core 2 Duo T6500 uses the Penryn (2008−2011) architecture (45 nm), while the Core i5-2520M uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Core 2 Duo T6500 scores 2,249 against the Core i5-2520M's 2,241 — a 0.4% lead for the Core 2 Duo T6500. L3 cache: 2 MB L2 Cache on the Core 2 Duo T6500 vs 3 MB (total) on the Core i5-2520M.

Feature	Core 2 Duo T6500	Core i5-2520M
Cores / Threads	2 / 2	2 / 4
Boost Clock	2.1 GHz	3.2 GHz+52%
Base Clock	2.1 GHz	2.5 GHz+19%
L3 Cache	2 MB L2 Cache	3 MB (total)+50%
L2 Cache	2 MB	256K (per core)+12700%
Process	45 nm	32 nm-29%
Architecture	Penryn (2008−2011)	Sandy Bridge (2011−2013)
PassMark	2,249	2,241

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Memory & Platform

The Core 2 Duo T6500 uses the PGA478 socket (PCIe 1.1), while the Core i5-2520M uses PGA988 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2-800 on the Core 2 Duo T6500 versus 1333 on the Core i5-2520M — the Core i5-2520M supports 66.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-2520M supports up to 16 GB of RAM compared to 8 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: PM45 (Core 2 Duo T6500) and HM65,HM67,QM67,QS67 (Core i5-2520M).

Feature	Core 2 Duo T6500	Core i5-2520M
Socket	PGA478	PGA988
PCIe Generation	PCIe 1.1	PCIe 2.0+82%
Max RAM Speed	DDR2-800	1333+67%
Max RAM Capacity	8 GB	16 GB+100%
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16	16

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Advanced Features

Neither processor supports overclocking. Virtualization support: false (Core 2 Duo T6500) vs true (Core i5-2520M). The Core i5-2520M includes integrated graphics (Intel HD Graphics 3000), while the Core 2 Duo T6500 requires a dedicated GPU. Direct competitor: Core i5-2520M rivals Phenom II Black Edition N660.