Core 2 Duo T5600 vs Core i3-2120T

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 T5600 vs Core i3-2120T 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 T5600 vs Core i3-2120T: 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 T5600

2006

Why buy it

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

Trade-offs

❌Lower PassMark (1,560 vs 1,570).
❌Lower PassMark per dollar, at 6.5 vs 12.4 PassMark/$ ($241 MSRP vs $127 MSRP).
❌No integrated graphics, while Core i3-2120T can still boot and troubleshoot without a discrete GPU.
❌No boxed cooler included, unlike Core i3-2120T.

Core i3-2120T

2011

Why buy it

✅Costs $114 less on MSRP ($127 MSRP vs $241 MSRP).
✅Delivers 91.0% more PassMark for each dollar spent, at 12.4 vs 6.5 PassMark/$ ($127 MSRP vs $241 MSRP).
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with HD Graphics 2000, while Core 2 Duo T5600 needs a discrete GPU.
✅Includes a boxed cooler (Yes), unlike Core 2 Duo T5600.

Trade-offs

❌1650% higher power demand at 35W vs 2W.

Quick Answers

So, is Core i3-2120T better than Core 2 Duo T5600?

Yes. Core i3-2120T is the better all-around CPU here. It gives you a 1.5% average FPS lead across 50 shared CPU game tests in our data, 0.6% 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, Core i3-2120T is the better pick. According to our tests, it delivers 1.5% 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 i3-2120T is the stronger fit. You are getting 0.6% better PassMark, backed by 2 cores and 4 threads.

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

Core i3-2120T is the better buy right now. Core i3-2120T comes in $114 cheaper on MSRP at $127 MSRP versus $241 MSRP, and it still gives you a 1.5% average FPS lead across 50 shared CPU game tests in our data. It is also 91.0% better value on MSRP (12.4 vs 6.5 PassMark/$), 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 i3-2120T makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2011 vs 2006) and more multi-core headroom with 2 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 T5600 vs Core i3-2120T Technical Specifications

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

Core 2 Duo T5600

The Core 2 Duo T5600 is manufactured by Intel. It was released in 28 July 2006 (19 years ago). It is based on the Merom (2006−2008) architecture. It features 2 cores and 2 threads. Base frequency is 1.83 GHz, with boost up to 1.83 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 34 Watt. Passmark benchmark score: 1,560 points. Launch price was $241.

Core i3-2120T

The Core i3-2120T is manufactured by Intel. It was released in 4 September 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 4 threads. Base frequency is 2.6 GHz, with boost up to 2.6 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 1,570 points. Launch price was $50.

⚡

Processing Power

The Core 2 Duo T5600 packs 2 cores / 2 threads, matching the Core i3-2120T's 2 cores. Boost clocks reach 1.83 GHz on the Core 2 Duo T5600 versus 2.6 GHz on the Core i3-2120T — a 34.8% clock advantage for the Core i3-2120T (base: 1.83 GHz vs 2.6 GHz). The Core 2 Duo T5600 uses the Merom (2006−2008) architecture (65 nm), while the Core i3-2120T uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Core 2 Duo T5600 scores 1,560 against the Core i3-2120T's 1,570 — a 0.6% lead for the Core i3-2120T. L3 cache: 0 kB on the Core 2 Duo T5600 vs 3 MB (total) on the Core i3-2120T.

Feature	Core 2 Duo T5600	Core i3-2120T
Cores / Threads	2 / 2	2 / 4
Boost Clock	1.83 GHz	2.6 GHz+42%
Base Clock	1.83 GHz	2.6 GHz+42%
L3 Cache	0 kB	3 MB (total)
L2 Cache	2 MB+700%	256 kB (per core)
Process	65 nm	32 nm-51%
Architecture	Merom (2006−2008)	Sandy Bridge (2011−2013)
PassMark	1,560	1,570
Geekbench 6 Single	—	403

🧠

Memory & Platform

The Core 2 Duo T5600 uses the PGA478 socket (PCIe 1.1), while the Core i3-2120T uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2-667 on the Core 2 Duo T5600 versus DDR3-1333 on the Core i3-2120T — the Core i3-2120T supports 99.9% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i3-2120T supports up to 32 GB of RAM compared to 4 GB — 700% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Core 2 Duo T5600) vs 16 (Core i3-2120T) — the Core i3-2120T offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: 945GM,945PM (Core 2 Duo T5600) and H61,B65,Q65,Q67,H67,P67,Z68,B75,Q75,Q77,H77,Z75,Z77 (Core i3-2120T).

Feature	Core 2 Duo T5600	Core i3-2120T
Socket	PGA478	LGA1155
PCIe Generation	PCIe 1.1	PCIe 2.0+82%
Max RAM Speed	DDR2-667	DDR3-1333+100%
Max RAM Capacity	4 GB	32 GB+700%
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	0	16

🔧

Advanced Features

Virtualization: not specified (Core 2 Duo T5600) / VT-x, EPT (Core i3-2120T). The Core i3-2120T includes integrated graphics (HD Graphics 2000), while the Core 2 Duo T5600 requires a dedicated GPU. Primary use case: Core i3-2120T targets Budget Desktop. Direct competitor: Core i3-2120T rivals A6-3500.

Feature	Core 2 Duo T5600	Core i3-2120T
Integrated GPU	No	Yes
IGPU Model	—	HD Graphics 2000
Unlocked	—	No
AVX-512	—	No
Virtualization	—	VT-x, EPT
Target Use	—	Budget Desktop

💰

Value Analysis

At launch, the Core 2 Duo T5600 was priced at $241, while the Core i3-2120T came in at $127. On launch pricing ($241 vs $127), Core i3-2120T was $114 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core 2 Duo T5600 delivers 6.5 pts/$ vs 12.4 pts/$ for the Core i3-2120T — making the Core i3-2120T the 62.5% better value option.

Feature	Core 2 Duo T5600	Core i3-2120T
MSRP	$241	$127-47%
Performance per Dollar	6.5	12.4+91%
Release Date	2006	2011

Search Core 2 Duo T5600 on Amazon

Search Core i3-2120T on Amazon

Affiliate Disclosure

ChipVERSUS is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. We may earn a commission on qualifying purchases made through our links. This comes at no additional cost to you and helps support our work in providing comprehensive PC building guides and tools.

Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.