Athlon II X4 600e vs Core 2 Duo T9550

Athlon II X4 600e vs Core 2 Duo T9550 Performance Spectrum

Athlon II X4 600e

4 / 4

1,795

0.0%

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Core 2 Duo T9550

2 / 2

1,804

+0.5%

Pentium 2117U

Pentium N3540

Celeron 1020E

Pentium Dual Core T2370

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 II X4 600e vs Core 2 Duo T9550 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 II X4 600e vs Core 2 Duo T9550: Pros, Cons & Final Verdict

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

Athlon II X4 600e

2009

Why buy it

✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Yes), unlike Core 2 Duo T9550.

Trade-offs

❌Lower PassMark (1,795 vs 1,804).
❌Launch MSRP is still $100 MSRP, while Core 2 Duo T9550 mostly shows up through inconsistent older-market listings.
❌650% higher power demand at 45W vs 6W.

Core 2 Duo T9550

2009

Why buy it

✅Draws 6W instead of 45W, a 39W reduction.

Trade-offs

❌No boxed cooler included, unlike Athlon II X4 600e.

Quick Answers

So, is Core 2 Duo T9550 better than Athlon II X4 600e?

Yes. Core 2 Duo T9550 is the better all-around CPU here. It gives you a 2.8% average FPS lead across 38 shared CPU game tests in our data and 0.5% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core 2 Duo T9550 is the better pick. According to our tests, it delivers 2.8% more average FPS across 38 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Core 2 Duo T9550 is the stronger fit. You are getting 0.5% better PassMark, backed by 2 cores and 2 threads.

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

Core 2 Duo T9550 is still the much better call for a fresh build. Core 2 Duo T9550 comes in at an unclear MSRP at unclear MSRP versus $100 MSRP, and it still gives you a 2.8% average FPS lead across 38 shared CPU game tests in our data. Athlon II X4 600e only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2009 platform. Even with 100.0% better value on paper (17.9 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on AM3.

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

Core 2 Duo T9550 is the safer long-term CPU choice because it gives you more room to grow and a better platform outlook.

Athlon II X4 600e vs Core 2 Duo T9550 Technical Specifications

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

Athlon II X4 600e

The Athlon II X4 600e is manufactured by AMD. It was released in 20 October 2009 (16 years ago). It is based on the Propus (2009−2011) architecture. It features 4 cores and 4 threads. Base frequency is 2.2 GHz, with boost up to 2.2 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 45 Watt. Memory support: DDR3. Passmark benchmark score: 1,795 points. Launch price was $130.

Core 2 Duo T9550

The Core 2 Duo T9550 is manufactured by Intel. It was released in 1 January 2009 (16 years ago). It is based on the Penryn (2008−2011) architecture. It features 2 cores and 2 threads. Base frequency is 2.66 GHz, with boost up to 2.66 GHz. L3 cache: 6 MB L2 Cache. L2 cache: 6 MB. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 35 Watt. Passmark benchmark score: 1,804 points. Launch price was $316.

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Processing Power

The Athlon II X4 600e packs 4 cores / 4 threads, while the Core 2 Duo T9550 offers 2 cores / 2 threads — the Athlon II X4 600e has 2 more cores. Boost clocks reach 2.2 GHz on the Athlon II X4 600e versus 2.66 GHz on the Core 2 Duo T9550 — a 18.9% clock advantage for the Core 2 Duo T9550 (base: 2.2 GHz vs 2.66 GHz). The Athlon II X4 600e uses the Propus (2009−2011) architecture (45 nm), while the Core 2 Duo T9550 uses Penryn (2008−2011) (45 nm). In PassMark, the Athlon II X4 600e scores 1,795 against the Core 2 Duo T9550's 1,804 — a 0.5% lead for the Core 2 Duo T9550. L3 cache: 0 kB on the Athlon II X4 600e vs 6 MB L2 Cache on the Core 2 Duo T9550.

Feature	Athlon II X4 600e	Core 2 Duo T9550
Cores / Threads	4 / 4+100%	2 / 2
Boost Clock	2.2 GHz	2.66 GHz+21%
Base Clock	2.2 GHz	2.66 GHz+21%
L3 Cache	0 kB	6 MB L2 Cache
L2 Cache	512 kB (per core)	6 MB+1100%
Process	45 nm	45 nm
Architecture	Propus (2009−2011)	Penryn (2008−2011)
PassMark	1,795	1,804

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Memory & Platform

The Athlon II X4 600e uses the AM3 socket (PCIe 2.0), while the Core 2 Duo T9550 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard.