Core 2 Duo T7600 vs Core i5-655K

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 T7600 vs Core i5-655K 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 T7600 vs Core i5-655K: 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 T7600

2006

Why buy it

✅Draws 4W instead of 73W, a 69W reduction.

Trade-offs

❌Lower PassMark (2,004 vs 2,017).
❌No integrated graphics, while Core i5-655K can still boot and troubleshoot without a discrete GPU.

Core i5-655K

2010

Why buy it

✅Integrated graphics onboard with Intel HD Graphics (Westmere), while Core 2 Duo T7600 needs a discrete GPU.

Trade-offs

❌Launch MSRP is still $216 MSRP, while Core 2 Duo T7600 mostly shows up through inconsistent older-market listings.
❌1725% higher power demand at 73W vs 4W.

Quick Answers

So, is Core i5-655K better than Core 2 Duo T7600?

Yes. Core i5-655K is the better all-around CPU here. It gives you a 1.9% 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 i5-655K is the better pick. According to our tests, it delivers 1.9% 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 i5-655K 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 i5-655K is the better buy right now. Core i5-655K comes in at an unclear MSRP at $216 MSRP versus unclear MSRP, and it still gives you a 1.9% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (9.3 vs 0.0 PassMark/$), 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 i5-655K makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2010 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 T7600 vs Core i5-655K Technical Specifications

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

Core 2 Duo T7600

The Core 2 Duo T7600 is manufactured by Intel. It was released in 28 August 2006 (19 years ago). It is based on the Merom (2006−2008) architecture. It features 2 cores and 2 threads. Base frequency is 2.33 GHz, with boost up to 2.33 GHz. L3 cache: 0 kB. L2 cache: 4 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 34 Watt. Passmark benchmark score: 2,004 points. Launch price was $619.

Core i5-655K

The Core i5-655K is manufactured by Intel. It was released in 30 May 2010 (15 years ago). It is based on the Clarkdale (2010−2011) architecture. It features 2 cores and 4 threads. Base frequency is 3.2 GHz, with boost up to 3.46 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1156. Thermal design power (TDP): 73 Watt. Memory support: DDR3. Passmark benchmark score: 2,017 points. Launch price was $69.

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Processing Power

The Core 2 Duo T7600 packs 2 cores / 2 threads, matching the Core i5-655K's 2 cores. Boost clocks reach 2.33 GHz on the Core 2 Duo T7600 versus 3.46 GHz on the Core i5-655K — a 39% clock advantage for the Core i5-655K (base: 2.33 GHz vs 3.2 GHz). The Core 2 Duo T7600 uses the Merom (2006−2008) architecture (65 nm), while the Core i5-655K uses Clarkdale (2010−2011) (32 nm). In PassMark, the Core 2 Duo T7600 scores 2,004 against the Core i5-655K's 2,017 — a 0.6% lead for the Core i5-655K. L3 cache: 0 kB on the Core 2 Duo T7600 vs 4 MB (total) on the Core i5-655K.

Feature	Core 2 Duo T7600	Core i5-655K
Cores / Threads	2 / 2	2 / 4
Boost Clock	2.33 GHz	3.46 GHz+48%
Base Clock	2.33 GHz	3.2 GHz+37%
L3 Cache	0 kB	4 MB (total)
L2 Cache	4 MB+1500%	256 kB (per core)
Process	65 nm	32 nm-51%
Architecture	Merom (2006−2008)	Clarkdale (2010−2011)
PassMark	2,004	2,017
Geekbench 6 Single	—	560
Geekbench 6 Multi	—	1,250

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Memory & Platform

The Core 2 Duo T7600 uses the PGA478 socket (PCIe 1.1), while the Core i5-655K uses LGA1156 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2-667 on the Core 2 Duo T7600 versus DDR3-1333 on the Core i5-655K — the Core i5-655K supports 99.9% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-655K supports up to 16 GB of RAM compared to 4 GB — 300% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: Socket P (Core 2 Duo T7600) and H55,H57,P55 (Core i5-655K).

Feature	Core 2 Duo T7600	Core i5-655K
Socket	PGA478	LGA1156
PCIe Generation	PCIe 1.1	PCIe 2.0+82%
Max RAM Speed	DDR2-667	DDR3-1333+100%
Max RAM Capacity	4 GB	16 GB+300%
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16	16

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Advanced Features

Only the Core i5-655K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support VT-x virtualization. The Core i5-655K includes integrated graphics (Intel HD Graphics (Westmere)), while the Core 2 Duo T7600 requires a dedicated GPU. Primary use case: Core i5-655K targets Desktop.