Athlon 64 X2 3800+ vs Core 2 Extreme X9000

Athlon 64 X2 3800+ vs Core 2 Extreme X9000 Performance Spectrum

Athlon 64 X2 3800+

2 / 2

1,095

0.0%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Core 2 Extreme X9000

2 / 2

1,108

+1.2%

Pentium D 830

Celeron N3010

Pentium T3400

Pentium Dual-Core E2200

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 3800+ vs Core 2 Extreme X9000 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 3800+ vs Core 2 Extreme X9000: 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 3800+

2005

Why buy it

Trade-offs

❌Lower PassMark (1,095 vs 1,108).
❌Launch MSRP is still $354 MSRP, while Core 2 Extreme X9000 mostly shows up through inconsistent older-market listings.
❌1383.3% higher power demand at 89W vs 6W.

Core 2 Extreme X9000

2008

Why buy it

✅Draws 6W instead of 89W, a 83W reduction.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Quick Answers

So, is Core 2 Extreme X9000 better than Athlon 64 X2 3800+?

Yes. Core 2 Extreme X9000 is the better all-around CPU here. It gives you a 1.6% average FPS lead across 47 shared CPU game tests in our data, 1.2% 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 2 Extreme X9000 is the better pick. According to our tests, it delivers 1.6% more average FPS across 47 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Core 2 Extreme X9000 is the stronger fit. You are getting 1.2% better PassMark, backed by 2 cores and 2 threads.

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

Core 2 Extreme X9000 is still the much better call for a fresh build. Core 2 Extreme X9000 comes in at an unclear MSRP at unclear MSRP versus $354 MSRP, and it still gives you a 1.6% average FPS lead across 47 shared CPU game tests in our data. Athlon 64 X2 3800+ only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2005 platform. Even with 100.0% better value on paper (3.1 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on 939.

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

Core 2 Extreme X9000 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 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 3800+ vs Core 2 Extreme X9000 Technical Specifications

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

Athlon 64 X2 3800+

The Athlon 64 X2 3800+ is manufactured by AMD. It was released in 2009-01-01. It is based on the Manchester (2005−2006) architecture. It features 2 cores and 2 threads. Max frequency: 2 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 90 nm process technology. Socket: 939. Thermal design power (TDP): 89 Watt. Passmark benchmark score: 1,095 points. Launch price was $149.

Core 2 Extreme X9000

The Core 2 Extreme X9000 is manufactured by Intel. It was released in 10 January 2008 (17 years ago). It is based on the Penryn (2008−2011) architecture. It features 2 cores and 2 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 6 MB L2 Cache. L2 cache: 6 MB. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 44 Watt. Passmark benchmark score: 1,108 points. Launch price was $851.

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Processing Power

Both the Athlon 64 X2 3800+ and Core 2 Extreme X9000 share an identical 2-core/2-thread configuration. Boost clocks reach 2 GHz on the Athlon 64 X2 3800+ versus 2.8 GHz on the Core 2 Extreme X9000 — a 33.3% clock advantage for the Core 2 Extreme X9000. The Athlon 64 X2 3800+ uses the Manchester (2005−2006) architecture (90 nm), while the Core 2 Extreme X9000 uses Penryn (2008−2011) (45 nm). In PassMark, the Athlon 64 X2 3800+ scores 1,095 against the Core 2 Extreme X9000's 1,108 — a 1.2% lead for the Core 2 Extreme X9000. L3 cache: 0 kB on the Athlon 64 X2 3800+ vs 6 MB L2 Cache on the Core 2 Extreme X9000.

Feature	Athlon 64 X2 3800+	Core 2 Extreme X9000
Cores / Threads	2 / 2	2 / 2
Boost Clock	2 GHz	2.8 GHz+40%
Base Clock	—	2.8 GHz
L3 Cache	0 kB	6 MB L2 Cache
L2 Cache	512 kB	6 MB+1100%
Process	90 nm	45 nm-50%
Architecture	Manchester (2005−2006)	Penryn (2008−2011)
PassMark	1,095	1,108+1%

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Memory & Platform

The Athlon 64 X2 3800+ uses the 939 socket (PCIe 1.1), while the Core 2 Extreme X9000 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard.