Pentium D 820 vs Pentium Dual Core SU4100

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.

Pentium D 820 vs Pentium Dual Core SU4100 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.

Pentium D 820 vs Pentium Dual Core SU4100: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Pentium D 820

2005

Why buy it

Trade-offs

❌Lower PassMark per dollar, at 5.9 vs 10.5 PassMark/$ ($241 MSRP vs $134 MSRP).

Pentium Dual Core SU4100

2009

Why buy it

✅Costs $107 less on MSRP ($134 MSRP vs $241 MSRP).
✅Delivers 79.5% more PassMark for each dollar spent, at 10.5 vs 5.9 PassMark/$ ($134 MSRP vs $241 MSRP).

Trade-offs

❌Lower PassMark (1,409 vs 1,412).

Quick Answers

So, is Pentium D 820 better than Pentium Dual Core SU4100?

Yes. Pentium D 820 is the better all-around CPU here. It gives you a 0.4% average FPS lead across 50 shared CPU game tests in our data and 0.2% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Pentium D 820 is the better pick. According to our tests, it delivers 0.4% 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, Pentium D 820 is the stronger fit. You are getting 0.2% better PassMark, backed by 2 cores and 2 threads.

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

Pentium D 820 is the easy recommendation for a fresh desktop build. Pentium D 820 comes in 79.9% more expensive on MSRP at $241 MSRP versus $134 MSRP, and it still gives you a 0.4% average FPS lead across 50 shared CPU game tests in our data. Pentium Dual Core SU4100 only looks good on raw value math because it is a cheap legacy laptop chip, not because it is a real desktop gaming recommendation. It simply does not keep up in modern games, especially when the gap is already 0.4% in the shared gaming data.

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

Pentium Dual Core SU4100 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2009 vs 2005). That makes it the safer long-term bet.

Pentium D 820 vs Pentium Dual Core SU4100 Technical Specifications

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

Pentium D 820

The Pentium D 820 is manufactured by Intel. It was released in 2007-01-01. It is based on the NetBurst (2000−2006) architecture. It features 2 cores and 2 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 90 nm process technology. Socket: LGA775. Thermal design power (TDP): 95 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,412 points. Launch price was $69.

Pentium Dual Core SU4100

The Pentium Dual Core SU4100 is manufactured by Intel. It was released in 2007-01-01. It is based on the NetBurst (2000−2006) architecture. It features 2 cores and 2 threads. Max frequency: 1.3 GHz. L2 cache: 2 MB. Built on 45 nm process technology. Socket: BGA956. Thermal design power (TDP): 2 MB. Passmark benchmark score: 1,409 points. Launch price was $69.

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Processing Power

Both the Pentium D 820 and Pentium Dual Core SU4100 share an identical 2-core/2-thread configuration. Boost clocks reach 2.8 GHz on the Pentium D 820 versus 1.3 GHz on the Pentium Dual Core SU4100 — a 73.2% clock advantage for the Pentium D 820. Both are built on the NetBurst (2000−2006) architecture using a 90 nm process. In PassMark, the Pentium D 820 scores 1,412 against the Pentium Dual Core SU4100's 1,409 — a 0.2% lead for the Pentium D 820.

Feature	Pentium D 820	Pentium Dual Core SU4100
Cores / Threads	2 / 2	2 / 2
Boost Clock	2.8 GHz+115%	1.3 GHz
Base Clock	2.8 GHz	—
L3 Cache	0 kB	—
L2 Cache	2 MB	2 MB
Process	90 nm	45 nm-50%
Architecture	NetBurst (2000−2006)	NetBurst (2000−2006)
PassMark	1,412	1,409
Geekbench 6 Single	166	—

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Memory & Platform

The Pentium D 820 uses the LGA775 socket (PCIe 1.1), while the Pentium Dual Core SU4100 uses BGA956 (PCIe 1.1) — making them incompatible on the same motherboard.

Feature	Pentium D 820	Pentium Dual Core SU4100
Socket	LGA775	BGA956
PCIe Generation	PCIe 1.1	PCIe 1.1
Max RAM Speed	DDR2-667	—
Max RAM Capacity	4 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	0	—

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Advanced Features

Virtualization: No (Pentium D 820) / not specified (Pentium Dual Core SU4100).

Feature	Pentium D 820	Pentium Dual Core SU4100
Integrated GPU	No	—
AVX-512	No	—
Virtualization	No	—

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Value Analysis

At launch, the Pentium D 820 was priced at $241, while the Pentium Dual Core SU4100 came in at $134. On launch pricing ($241 vs $134), Pentium Dual Core SU4100 was $107 cheaper. In terms of value on MSRP (PassMark points per dollar), the Pentium D 820 delivers 5.9 pts/$ vs 10.5 pts/$ for the Pentium Dual Core SU4100 — making the Pentium Dual Core SU4100 the 56.9% better value option.

Feature	Pentium D 820	Pentium Dual Core SU4100
MSRP	$241	$134-44%
Performance per Dollar	5.9	10.5+78%
Release Date	2005	2009

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