Pentium D 820 vs Phenom X4 9150e

Pentium D 820 vs Phenom X4 9150e Performance Spectrum

Pentium D 820

2 / 2

1,412

0.0%

1,427

+1.1%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

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.

Pentium D 820 vs Phenom X4 9150e 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 Phenom X4 9150e: 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

✅Draws 2W instead of 65W, a 63W reduction.

Trade-offs

❌Lower PassMark (1,412 vs 1,427).
❌Launch MSRP is still $241 MSRP, while Phenom X4 9150e mostly shows up through inconsistent older-market listings.

Phenom X4 9150e

2008

Why buy it

✅+1.1% higher PassMark.

Trade-offs

❌3150% higher power demand at 65W vs 2W.

Quick Answers

So, is Pentium D 820 better than Phenom X4 9150e?

It depends on what you want from the system. For gaming, Pentium D 820 is ahead with a 0.3% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Phenom X4 9150e pulls ahead with 1.1% better PassMark.

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

For streaming, content creation, and heavier multitasking, Phenom X4 9150e is the stronger fit. You are getting 1.1% better PassMark, backed by 4 cores and 4 threads.

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

Pentium D 820 is the better buy right now. Pentium D 820 comes in at an unclear MSRP at $241 MSRP versus unclear MSRP, and it still gives you a 0.3% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Phenom X4 9150e is still stronger for heavier multi-core work with 1.1% better PassMark. It is also 100.0% better value on MSRP (5.9 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Phenom X4 9150e makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2008 vs 2005) and more multi-core headroom with 4 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.

Pentium D 820 vs Phenom X4 9150e 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.

Phenom X4 9150e

The Phenom X4 9150e is manufactured by AMD. It was released in 2009-01-01. It is based on the Agena (2007−2008) architecture. It features 4 cores and 4 threads. Max frequency: 1.8 GHz. L3 cache: 2 MB (total). L2 cache: 512 kB (per core). Built on 65 nm process technology. Socket: AM2+. Thermal design power (TDP): 65 Watt. Passmark benchmark score: 1,427 points. Launch price was $149.

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Processing Power

The Pentium D 820 packs 2 cores / 2 threads, while the Phenom X4 9150e offers 4 cores / 4 threads — the Phenom X4 9150e has 2 more cores. Boost clocks reach 2.8 GHz on the Pentium D 820 versus 1.8 GHz on the Phenom X4 9150e — a 43.5% clock advantage for the Pentium D 820. The Pentium D 820 uses the NetBurst (2000−2006) architecture (90 nm), while the Phenom X4 9150e uses Agena (2007−2008) (65 nm). In PassMark, the Pentium D 820 scores 1,412 against the Phenom X4 9150e's 1,427 — a 1.1% lead for the Phenom X4 9150e. L3 cache: 0 kB on the Pentium D 820 vs 2 MB (total) on the Phenom X4 9150e.

Feature	Pentium D 820	Phenom X4 9150e
Cores / Threads	2 / 2	4 / 4+100%
Boost Clock	2.8 GHz+56%	1.8 GHz
Base Clock	2.8 GHz	—
L3 Cache	0 kB	2 MB (total)
L2 Cache	2 MB+300%	512 kB (per core)
Process	90 nm	65 nm-28%
Architecture	NetBurst (2000−2006)	Agena (2007−2008)
PassMark	1,412	1,427+1%
Geekbench 6 Single	166	—

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Memory & Platform

The Pentium D 820 uses the LGA775 socket (PCIe 1.1), while the Phenom X4 9150e uses AM2+ (PCIe 2.0) — making them incompatible on the same motherboard.