Athlon 64 FX-51 vs Sempron 150

Athlon 64 FX-51 vs Sempron 150 Performance Spectrum

Athlon 64 FX-51

1 / 1

615

+6.2%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Sempron 150

1 / 1

579

0.0%

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.

Athlon 64 FX-51 vs Sempron 150 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 FX-51 vs Sempron 150: 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 FX-51

2003

Why buy it

✅Better for gaming: +7.2% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌Launch MSRP is still $733 MSRP, while Sempron 150 mostly shows up through inconsistent older-market listings.
❌97.8% higher power demand at 89W vs 45W.

Sempron 150

2010

Why buy it

✅Draws 45W instead of 89W, a 44W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Athlon 64 FX-51 across 50 shared CPU benchmark tests.
❌Lower PassMark (579 vs 615).

Quick Answers

So, is Athlon 64 FX-51 better than Sempron 150?

Yes. Athlon 64 FX-51 is the better all-around CPU here. It gives you a 7.2% average FPS lead across 50 shared CPU game tests in our data and 6.2% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Athlon 64 FX-51 is the better pick. According to our tests, it delivers 7.2% 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 64 FX-51 is the stronger fit. You are getting 6.2% better PassMark, backed by 1 cores and 1 threads.

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

Athlon 64 FX-51 is the better buy right now. Athlon 64 FX-51 comes in at an unclear MSRP at $733 MSRP versus unclear MSRP, and it still gives you a 7.2% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (0.8 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Sempron 150 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2010 vs 2003). That makes it the safer long-term bet.

Athlon 64 FX-51 vs Sempron 150 Technical Specifications

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

Athlon 64 FX-51

The Athlon 64 FX-51 is manufactured by AMD. It was released in 2009-01-01. It is based on the SledgeHammer (2003−2005) architecture. It features 1 cores and 1 threads. Max frequency: 2.2 GHz. L3 cache: 0 kB. L2 cache: 1 MB. Built on 130 nm process technology. Socket: 940. Thermal design power (TDP): 89 Watt. Passmark benchmark score: 615 points. Launch price was $149.

Sempron 150

The Sempron 150 is manufactured by AMD. It was released in 7 December 2010 (14 years ago). It is based on the Sargas (2009−2011) architecture. It features 1 cores and 1 threads. Base frequency is 2.9 GHz, with boost up to 2.9 GHz. L3 cache: 0 kB. L2 cache: 1 MB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 45 Watt. Memory support: DDR3. Passmark benchmark score: 579 points. Launch price was $73.

⚡

Processing Power

Both the Athlon 64 FX-51 and Sempron 150 share an identical 1-core/1-thread configuration. Boost clocks reach 2.2 GHz on the Athlon 64 FX-51 versus 2.9 GHz on the Sempron 150 — a 27.5% clock advantage for the Sempron 150. The Athlon 64 FX-51 uses the SledgeHammer (2003−2005) architecture (130 nm), while the Sempron 150 uses Sargas (2009−2011) (45 nm). In PassMark, the Athlon 64 FX-51 scores 615 against the Sempron 150's 579 — a 6% lead for the Athlon 64 FX-51. Both processors carry 0 kB of L3 cache.

Feature	Athlon 64 FX-51	Sempron 150
Cores / Threads	1 / 1	1 / 1
Boost Clock	2.2 GHz	2.9 GHz+32%
Base Clock	—	2.9 GHz
L3 Cache	0 kB	0 kB
L2 Cache	1 MB	1 MB (per core)
Process	130 nm	45 nm-65%
Architecture	SledgeHammer (2003−2005)	Sargas (2009−2011)
PassMark	615+6%	579

🧠

Memory & Platform

The Athlon 64 FX-51 uses the 940 socket (PCIe 1.1), while the Sempron 150 uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard.