Core 2 Duo T7100 vs Core i7-820QM

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 T7100 vs Core i7-820QM 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 T7100 vs Core i7-820QM: 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 T7100

2007

Why buy it

✅Costs $349 less on MSRP ($197 MSRP vs $546 MSRP).
✅Delivers 176.9% more PassMark for each dollar spent, at 9.2 vs 3.3 PassMark/$ ($197 MSRP vs $546 MSRP).
✅Draws 2W instead of 45W, a 43W reduction.

Trade-offs

❌Lower PassMark (1,817 vs 1,819).

Core i7-820QM

2009

Why buy it

✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark per dollar, at 3.3 vs 9.2 PassMark/$ ($546 MSRP vs $197 MSRP).
❌2150% higher power demand at 45W vs 2W.

Quick Answers

So, is Core i7-820QM better than Core 2 Duo T7100?

Yes. Core i7-820QM is the better all-around CPU here. It gives you a 1.3% average FPS lead across 50 shared CPU game tests in our data, 0.1% 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 i7-820QM is the better pick. According to our tests, it delivers 1.3% 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 i7-820QM is the stronger fit. You are getting 0.1% better PassMark, backed by 4 cores and 8 threads.

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

Core i7-820QM is still the much better call for a fresh build. Core i7-820QM comes in 177.2% more expensive on MSRP at $546 MSRP versus $197 MSRP, and it still gives you a 1.3% average FPS lead across 50 shared CPU game tests in our data. Core 2 Duo T7100 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2007 platform. Even with 176.9% better value on paper (9.2 vs 3.3 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on PGA478.

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

Core i7-820QM makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2009 vs 2007) and more multi-core headroom with 4 cores / 8 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 T7100 vs Core i7-820QM Technical Specifications

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

Core 2 Duo T7100

The Core 2 Duo T7100 is manufactured by Intel. It was released in 9 May 2007 (18 years ago). It is based on the Merom (2006−2008) architecture. It features 2 cores and 2 threads. Base frequency is 1.8 GHz, with boost up to 1.8 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 35 Watt. Passmark benchmark score: 1,817 points. Launch price was $197.

Core i7-820QM

The Core i7-820QM is manufactured by Intel. It was released in 23 September 2009 (16 years ago). It is based on the Clarksfield (2009−2010) architecture. It features 4 cores and 8 threads. Base frequency is 1.73 GHz, with boost up to 3.06 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: PGA988. Thermal design power (TDP): 45 Watt. Memory support: DDR3-1066, DDR3-1333. Passmark benchmark score: 1,819 points. Launch price was $546.

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Processing Power

The Core 2 Duo T7100 packs 2 cores / 2 threads, while the Core i7-820QM offers 4 cores / 8 threads — the Core i7-820QM has 2 more cores. Boost clocks reach 1.8 GHz on the Core 2 Duo T7100 versus 3.06 GHz on the Core i7-820QM — a 51.9% clock advantage for the Core i7-820QM (base: 1.8 GHz vs 1.73 GHz). The Core 2 Duo T7100 uses the Merom (2006−2008) architecture (65 nm), while the Core i7-820QM uses Clarksfield (2009−2010) (45 nm). In PassMark, the Core 2 Duo T7100 scores 1,817 against the Core i7-820QM's 1,819 — a 0.1% lead for the Core i7-820QM. L3 cache: 0 kB on the Core 2 Duo T7100 vs 8 MB (total) on the Core i7-820QM.

Feature	Core 2 Duo T7100	Core i7-820QM
Cores / Threads	2 / 2	4 / 8+100%
Boost Clock	1.8 GHz	3.06 GHz+70%
Base Clock	1.8 GHz+4%	1.73 GHz
L3 Cache	0 kB	8 MB (total)
L2 Cache	2 MB+700%	256 kB (per core)
Process	65 nm	45 nm-31%
Architecture	Merom (2006−2008)	Clarksfield (2009−2010)
PassMark	1,817	1,819

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Memory & Platform

The Core 2 Duo T7100 uses the PGA478 socket (PCIe 1.1), while the Core i7-820QM uses PGA988 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2-667 on the Core 2 Duo T7100 versus 1333 on the Core i7-820QM — the Core i7-820QM supports 99.9% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both feature 2-channel memory with ECC support. Chipset compatibility: GM965,PM965 (Core 2 Duo T7100) and PM55,HM55,QM57 (Core i7-820QM).

Feature	Core 2 Duo T7100	Core i7-820QM
Socket	PGA478	PGA988
PCIe Generation	PCIe 1.1	PCIe 2.0+82%
Max RAM Speed	DDR2-667	1333+100%
Max RAM Capacity	—	8
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	—	16

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Advanced Features

Neither processor supports overclocking. Virtualization support: VT-x (Core 2 Duo T7100) vs true (Core i7-820QM). Primary use case: Core 2 Duo T7100 targets Budget. Direct competitor: Core 2 Duo T7100 rivals Athlon 64 X2 TK-42; Core i7-820QM rivals Core 2 Quad Q9000.

Feature	Core 2 Duo T7100	Core i7-820QM
Integrated GPU	No	No
IGPU Model	—	None
Unlocked	No	No
AVX-512	No	No
Virtualization	VT-x	true
Target Use	Budget	—

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Value Analysis

At launch, the Core 2 Duo T7100 was priced at $197, while the Core i7-820QM came in at $546. On launch pricing ($197 vs $546), Core 2 Duo T7100 was $349 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core 2 Duo T7100 delivers 9.2 pts/$ vs 3.3 pts/$ for the Core i7-820QM — making the Core 2 Duo T7100 the 93.9% better value option.

Feature	Core 2 Duo T7100	Core i7-820QM
MSRP	$197-64%	$546
Performance per Dollar	9.2+179%	3.3
Release Date	2007	2009

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