Athlon 64 X2 5000+ vs Pentium D 820

Athlon 64 X2 5000+ vs Pentium D 820 Performance Spectrum

Athlon 64 X2 5000+

2 / 2

1,425

+0.9%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Pentium D 820

2 / 2

1,412

0.0%

About PassMark

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.

Athlon 64 X2 5000+ vs Pentium D 820 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.

Athlon 64 X2 5000+ vs Pentium D 820: Pros, Cons & Final Verdict

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

Athlon 64 X2 5000+

2006

Why buy it

✅+0.9% higher PassMark.
✅Costs $105 less on MSRP ($136 MSRP vs $241 MSRP).
✅Delivers 78.8% more PassMark for each dollar spent, at 10.5 vs 5.9 PassMark/$ ($136 MSRP vs $241 MSRP).

Trade-offs

❌4350% higher power demand at 89W vs 2W.

Pentium D 820

2005

Why buy it

✅Draws 2W instead of 89W, a 87W reduction.

Trade-offs

❌Lower PassMark (1,412 vs 1,425).
❌Lower PassMark per dollar, at 5.9 vs 10.5 PassMark/$ ($241 MSRP vs $136 MSRP).

Quick Answers

So, is Athlon 64 X2 5000+ better than Pentium D 820?

It depends on what you want from the system. For gaming, Pentium D 820 is ahead with a 2.1% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Athlon 64 X2 5000+ pulls ahead with 0.9% better PassMark.

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

For streaming, content creation, and heavier multitasking, Athlon 64 X2 5000+ is the stronger fit. You are getting 0.9% better PassMark, backed by 2 cores and 2 threads.

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

Athlon 64 X2 5000+ is the better buy right now. Athlon 64 X2 5000+ comes in $105 cheaper on MSRP at $136 MSRP versus $241 MSRP, and it still gives you 0.9% better PassMark. The compromise is that Pentium D 820 is still the better pure gaming CPU with a 2.1% average FPS lead across 50 shared CPU game tests in our data. It is also 78.8% better value on MSRP (10.5 vs 5.9 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Athlon 64 X2 5000+ makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2006 vs 2005) and more multi-core headroom with 2 cores / 2 threads instead of 2/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Athlon 64 X2 5000+ vs Pentium D 820 Technical Specifications

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

Athlon 64 X2 5000+

The Athlon 64 X2 5000+ is manufactured by AMD. It was released in 2009-01-01. It is based on the Windsor (2006−2007) architecture. It features 2 cores and 2 threads. Max frequency: 2.6 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 90 nm process technology. Socket: AM2. Thermal design power (TDP): 89 Watt. Passmark benchmark score: 1,425 points. Launch price was $149.

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.

⚡

Processing Power

Both the Athlon 64 X2 5000+ and Pentium D 820 share an identical 2-core/2-thread configuration. Boost clocks reach 2.6 GHz on the Athlon 64 X2 5000+ versus 2.8 GHz on the Pentium D 820 — a 7.4% clock advantage for the Pentium D 820. The Athlon 64 X2 5000+ uses the Windsor (2006−2007) architecture (90 nm), while the Pentium D 820 uses NetBurst (2000−2006) (90 nm). In PassMark, the Athlon 64 X2 5000+ scores 1,425 against the Pentium D 820's 1,412 — a 0.9% lead for the Athlon 64 X2 5000+. Both processors carry 0 kB of L3 cache.

Feature	Athlon 64 X2 5000+	Pentium D 820
Cores / Threads	2 / 2	2 / 2
Boost Clock	2.6 GHz	2.8 GHz+8%
Base Clock	—	2.8 GHz
L3 Cache	0 kB	0 kB
L2 Cache	512 kB	2 MB+300%
Process	90 nm	90 nm
Architecture	Windsor (2006−2007)	NetBurst (2000−2006)
PassMark	1,425	1,412
Geekbench 6 Single	—	166

🧠

Memory & Platform

The Athlon 64 X2 5000+ uses the AM2 socket (PCIe 1.1), while the Pentium D 820 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2-800 on the Athlon 64 X2 5000+ versus DDR2-667 on the Pentium D 820 — the Athlon 64 X2 5000+ supports 19.9% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Athlon 64 X2 5000+ 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 0 PCIe lanes. Chipset compatibility: AMD AM2 (Athlon 64 X2 5000+) and Intel 945,Intel 955 (Pentium D 820).

Feature	Athlon 64 X2 5000+	Pentium D 820
Socket	AM2	LGA775
PCIe Generation	PCIe 1.1	PCIe 1.1
Max RAM Speed	DDR2-800+20%	DDR2-667
Max RAM Capacity	16 GB+300%	4 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	0	0

🔧

Advanced Features

Virtualization: not specified (Athlon 64 X2 5000+) / No (Pentium D 820).

Feature	Athlon 64 X2 5000+	Pentium D 820
Integrated GPU	No	No
AVX-512	—	No
Virtualization	—	No

💰

Value Analysis

At launch, the Athlon 64 X2 5000+ was priced at $136, while the Pentium D 820 came in at $241. On launch pricing ($136 vs $241), Athlon 64 X2 5000+ was $105 cheaper. In terms of value on MSRP (PassMark points per dollar), the Athlon 64 X2 5000+ delivers 10.5 pts/$ vs 5.9 pts/$ for the Pentium D 820 — making the Athlon 64 X2 5000+ the 56.5% better value option.

Feature	Athlon 64 X2 5000+	Pentium D 820
MSRP	$136-44%	$241
Performance per Dollar	10.5+78%	5.9
Release Date	2006	2005

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