Core 2 Duo E6400 vs Pentium A1020

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 E6400 vs Pentium A1020 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 E6400 vs Pentium A1020: 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 E6400

2006

Why buy it

✅+0.7% higher PassMark.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Includes a boxed cooler (true), unlike Pentium A1020.

Trade-offs

❌Lower PassMark per dollar, at 6.4 vs 13.6 PassMark/$ ($183 MSRP vs $86 MSRP).
❌550% higher power demand at 65W vs 10W.

Pentium A1020

2016

Why buy it

✅Costs $97 less on MSRP ($86 MSRP vs $183 MSRP).
✅Delivers 111.3% more PassMark for each dollar spent, at 13.6 vs 6.4 PassMark/$ ($86 MSRP vs $183 MSRP).
✅Draws 10W instead of 65W, a 55W reduction.

Trade-offs

❌Lower PassMark (1,167 vs 1,175).
❌No boxed cooler included, unlike Core 2 Duo E6400.

Quick Answers

So, is Pentium A1020 better than Core 2 Duo E6400?

It depends on what you want from the system. For gaming, Pentium A1020 is ahead with a 1.9% average FPS lead across 46 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core 2 Duo E6400 pulls ahead with 0.7% better PassMark.

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

For streaming, content creation, and heavier multitasking, Core 2 Duo E6400 is the stronger fit. You are getting 0.7% better PassMark, backed by 2 cores and 2 threads.

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

Pentium A1020 is the better buy right now. Pentium A1020 comes in $97 cheaper on MSRP at $86 MSRP versus $183 MSRP, and it still gives you a 1.9% average FPS lead across 46 shared CPU game tests in our data. The compromise is that Core 2 Duo E6400 is still stronger for heavier multi-core work with 0.7% better PassMark. It is also 111.3% better value on MSRP (13.6 vs 6.4 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Pentium A1020 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2016 vs 2006). That makes it the safer long-term bet.

Core 2 Duo E6400 vs Pentium A1020 Technical Specifications

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

Core 2 Duo E6400

The Core 2 Duo E6400 is manufactured by Intel. It was released in 2008-01-01. It is based on the Conroe (2006−2007) architecture. It features 2 cores and 2 threads. Base frequency is 2.13 GHz, with boost up to 2.13 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,175 points. Launch price was $249.

Pentium A1020

The Pentium A1020 is manufactured by Intel. It was released in 2007-01-01. It features 4 cores and 4 threads. Base frequency is 2.41 GHz, with boost up to 2.7 GHz. L3 cache: 2 MB L2 Cache. Built on 22 nm process technology. Socket: FCBGA1170. Thermal design power (TDP): 10 Watt. Memory support: DDR3L-1333. Passmark benchmark score: 1,167 points. Launch price was $69.

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Processing Power

The Core 2 Duo E6400 packs 2 cores / 2 threads, while the Pentium A1020 offers 4 cores / 4 threads — the Pentium A1020 has 2 more cores. Boost clocks reach 2.13 GHz on the Core 2 Duo E6400 versus 2.7 GHz on the Pentium A1020 — a 23.6% clock advantage for the Pentium A1020 (base: 2.13 GHz vs 2.41 GHz). The Core 2 Duo E6400 is built on the Conroe (2006−2007) architecture. In PassMark, the Core 2 Duo E6400 scores 1,175 against the Pentium A1020's 1,167 — a 0.7% lead for the Core 2 Duo E6400. L3 cache: 0 kB on the Core 2 Duo E6400 vs 2 MB L2 Cache on the Pentium A1020.

Feature	Core 2 Duo E6400	Pentium A1020
Cores / Threads	2 / 2	4 / 4+100%
Boost Clock	2.13 GHz	2.7 GHz+27%
Base Clock	2.13 GHz	2.41 GHz+13%
L3 Cache	0 kB	2 MB L2 Cache
L2 Cache	2 MB	—
Process	65 nm	22 nm-66%
Architecture	Conroe (2006−2007)	—
PassMark	1,175	1,167

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Memory & Platform

The Core 2 Duo E6400 uses the LGA775 socket (PCIe 1.1), while the Pentium A1020 uses FCBGA1170 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core 2 Duo E6400	Pentium A1020
Socket	LGA775	FCBGA1170
PCIe Generation	PCIe 1.1	PCIe 3.0+173%
Max RAM Speed	1066	—
Max RAM Capacity	16	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

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Advanced Features

Virtualization: true (Core 2 Duo E6400) / not specified (Pentium A1020). Direct competitor: Core 2 Duo E6400 rivals Athlon 64 X2 5400+.

Feature	Core 2 Duo E6400	Pentium A1020
Integrated GPU	No	—
IGPU Model	None	—
Unlocked	No	—
AVX-512	No	—
Virtualization	true	—

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Value Analysis

At launch, the Core 2 Duo E6400 was priced at $183, while the Pentium A1020 came in at $86. On launch pricing ($183 vs $86), Pentium A1020 was $97 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core 2 Duo E6400 delivers 6.4 pts/$ vs 13.6 pts/$ for the Pentium A1020 — making the Pentium A1020 the 71.5% better value option.

Feature	Core 2 Duo E6400	Pentium A1020
MSRP	$183	$86-53%
Performance per Dollar	6.4	13.6+112%
Release Date	2006	2016

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