Athlon PRO 3045B vs Xeon L3426

Athlon PRO 3045B vs Xeon L3426 Performance Spectrum

Athlon PRO 3045B

2 / 4

2,770

+1.0%

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Xeon L3426

2,742

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 PRO 3045B vs Xeon L3426 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 PRO 3045B vs Xeon L3426: Pros, Cons & Final Verdict

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

Athlon PRO 3045B

2021

Why buy it

✅+1% higher PassMark.
✅Draws 15W instead of 45W, a 30W reduction.
✅100+% more PCIe lanes (8 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with AMD Radeon Vega 3, while Xeon L3426 needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon L3426 across 45 shared CPU benchmark tests.
❌Smaller total L3 cache (4 MB vs 8 MB).
❌Less compelling for workstation-style loads than Xeon L3426, which brings 4 cores / 8 threads.
❌Launch MSRP is still $426 MSRP, while Xeon L3426 mostly shows up through inconsistent older-market listings.

Xeon L3426

2009

Why buy it

✅Better for gaming: +8.8% higher average FPS across 45 shared CPU benchmark tests.
✅+100% larger total L3 cache (8 MB vs 4 MB).
✅Better for workstations and heavier parallel workloads: 4 cores / 8 threads.

Trade-offs

❌Lower PassMark (2,742 vs 2,770).
❌200% higher power demand at 45W vs 15W.
❌No integrated graphics, while Athlon PRO 3045B can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Athlon PRO 3045B better than Xeon L3426?

Not really, because they are built for different jobs. Xeon L3426 makes more sense for workstation-style multi-core throughput, while Athlon PRO 3045B is the more practical desktop choice for gaming, platform cost, and everyday use.

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

For streaming, content creation, and heavier multitasking, Athlon PRO 3045B is the stronger fit. You are getting 1% better PassMark, backed by 2 cores and 4 threads.

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

Athlon PRO 3045B is the better buy right now. Athlon PRO 3045B comes in at an unclear MSRP at $426 MSRP versus unclear MSRP, and it still gives you 1% better PassMark. The compromise is that Xeon L3426 is still the better pure gaming CPU with a 8.8% average FPS lead across 45 shared CPU game tests in our data. It is also 100.0% better value on MSRP (6.5 vs 0.0 PassMark/$), 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 PRO 3045B makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2021 vs 2009) and more multi-core headroom with 2 cores / 4 threads instead of 4/8. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Athlon PRO 3045B vs Xeon L3426 Technical Specifications

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

Athlon PRO 3045B

The Athlon PRO 3045B is manufactured by AMD. It was released in 2009-01-01. It is based on the Dali (2020−2021) architecture. It features 2 cores and 4 threads. Base frequency is 2.3 GHz, with boost up to 3.2 GHz. L3 cache: 4 MB (total). L2 cache: 512 kB (per core). Built on 14 nm process technology. Socket: FP5. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 2,770 points. Launch price was $149.

Xeon L3426

The Xeon L3426 is manufactured by Intel. It was released in 2015-01-01. It features 4 cores and 8 threads. Base frequency is 1.86 GHz, with boost up to 3.2 GHz. L3 cache: 8 MB Intel® Smart Cache. Built on 45 nm process technology. Socket: LGA1156. Thermal design power (TDP): 45 Watt. Memory support: DDR3-800, DDR3-1066, DDR3-1333. Passmark benchmark score: 2,742 points. Launch price was $800.

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Processing Power

The Athlon PRO 3045B packs 2 cores / 4 threads, while the Xeon L3426 offers 4 cores / 8 threads — the Xeon L3426 has 2 more cores. Boost clocks reach 3.2 GHz on the Athlon PRO 3045B versus 3.2 GHz on the Xeon L3426 — identical boost frequencies (base: 2.3 GHz vs 1.86 GHz). The Athlon PRO 3045B is built on the Dali (2020−2021) architecture. In PassMark, the Athlon PRO 3045B scores 2,770 against the Xeon L3426's 2,742 — a 1% lead for the Athlon PRO 3045B. L3 cache: 4 MB (total) on the Athlon PRO 3045B vs 8 MB Intel® Smart Cache on the Xeon L3426.

Feature	Athlon PRO 3045B	Xeon L3426
Cores / Threads	2 / 4	4 / 8+100%
Boost Clock	3.2 GHz	3.2 GHz
Base Clock	2.3 GHz+24%	1.86 GHz
L3 Cache	4 MB (total)	8 MB Intel® Smart Cache+100%
L2 Cache	512 kB (per core)	—
Process	14 nm-69%	45 nm
Architecture	Dali (2020−2021)	—
PassMark	2,770+1%	2,742

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Memory & Platform

The Athlon PRO 3045B uses the FP5 socket (PCIe 4.0), while the Xeon L3426 uses LGA1156 (PCIe 2.0) — making them incompatible on the same motherboard.