Athlon II X2 265 vs Xeon 5148

Athlon II X2 265 vs Xeon 5148 Performance Spectrum

Athlon II X2 265

2 / 2

1,324

+0.7%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Xeon 5148

2 / 2

1,315

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 II X2 265 vs Xeon 5148 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 X2 265 vs Xeon 5148: 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 X2 265

2010

Why buy it

✅Includes a boxed cooler (Stock), unlike Xeon 5148.

Trade-offs

❌Launch MSRP is still $83 MSRP, while Xeon 5148 mostly shows up through inconsistent older-market listings.
❌62.5% higher power demand at 65W vs 40W.

Xeon 5148

2006

Why buy it

✅Draws 40W instead of 65W, a 25W reduction.

Trade-offs

❌Lower PassMark (1,315 vs 1,324).
❌No boxed cooler included, unlike Athlon II X2 265.

Quick Answers

So, is Athlon II X2 265 better than Xeon 5148?

Not really, because they are built for different jobs. Xeon 5148 makes more sense for workstation-style multi-core throughput, while Athlon II X2 265 is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Athlon II X2 265 is the better pick. According to our tests, it delivers 0.1% 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, Athlon II X2 265 is the stronger fit. You are getting 0.7% better PassMark, backed by 2 cores and 2 threads.

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

Athlon II X2 265 is the better buy right now. Athlon II X2 265 comes in at an unclear MSRP at $83 MSRP versus unclear MSRP, and it still gives you a 0.1% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (16.0 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Athlon II X2 265 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2010 vs 2006) 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 II X2 265 vs Xeon 5148 Technical Specifications

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

Athlon II X2 265

The Athlon II X2 265 is manufactured by AMD. It was released in 21 September 2010 (15 years ago). It is based on the Regor (2009−2013) architecture. It features 2 cores and 2 threads. Base frequency is 3.3 GHz, with boost up to 3.3 GHz. L3 cache: 0 kB. L2 cache: 1 MB. Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 65 Watt. Memory support: DDR2, DDR3. Passmark benchmark score: 1,324 points. Launch price was $83.

Xeon 5148

The Xeon 5148 is manufactured by Intel. It was released in Junho 2006 (19 years ago). It is based on the Woodcrest (2006) architecture. It features 2 cores and 2 threads. Max frequency: 2.33 GHz. L3 cache: 0 kB. L2 cache: 4 MB. Built on 65 nm process technology. Socket: LGA771. Thermal design power (TDP): 40 Watt. Memory support: DDR2. Passmark benchmark score: 1,315 points. Launch price was $9.

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Processing Power

Both the Athlon II X2 265 and Xeon 5148 share an identical 2-core/2-thread configuration. Boost clocks reach 3.3 GHz on the Athlon II X2 265 versus 2.33 GHz on the Xeon 5148 — a 34.5% clock advantage for the Athlon II X2 265. The Athlon II X2 265 uses the Regor (2009−2013) architecture (45 nm), while the Xeon 5148 uses Woodcrest (2006) (65 nm). In PassMark, the Athlon II X2 265 scores 1,324 against the Xeon 5148's 1,315 — a 0.7% lead for the Athlon II X2 265. Both processors carry 0 kB of L3 cache.

Feature	Athlon II X2 265	Xeon 5148
Cores / Threads	2 / 2	2 / 2
Boost Clock	3.3 GHz+42%	2.33 GHz
Base Clock	3.3 GHz	—
L3 Cache	0 kB	0 kB
L2 Cache	1 MB	4 MB+300%
Process	45 nm-31%	65 nm
Architecture	Regor (2009−2013)	Woodcrest (2006)
PassMark	1,324	1,315
Geekbench 6 Single	275	—
Geekbench 6 Multi	520	—

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Memory & Platform

The Athlon II X2 265 uses the AM3 socket (PCIe 2.0), while the Xeon 5148 uses LGA771 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Athlon II X2 265	Xeon 5148
Socket	AM3	LGA771
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	DDR3-1333	—
Max RAM Capacity	16 GB	—
RAM Channels	2	—
ECC Support	Yes	—
PCIe Lanes	0	—

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Advanced Features

Virtualization: AMD-V (Athlon II X2 265) / not specified (Xeon 5148). Primary use case: Athlon II X2 265 targets Legacy Desktop. Direct competitor: Athlon II X2 265 rivals Pentium E6700.