Phenom X4 9750B vs Xeon X5270

Phenom X4 9750B vs Xeon X5270 Performance Spectrum

Phenom X4 9750B

4 / 4

1,520

0.0%

Ryzen Threadripper PRO 5945WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Xeon X5270

1,524

+0.3%

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.

Phenom X4 9750B vs Xeon X5270 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.

Phenom X4 9750B vs Xeon X5270: Pros, Cons & Final Verdict

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

Phenom X4 9750B

2008

Why buy it

✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon X5270 across 50 shared CPU benchmark tests.
❌Lower PassMark (1,520 vs 1,524).
❌Smaller total L3 cache (2 MB vs 6 MB).
❌Launch MSRP is still $215 MSRP, while Xeon X5270 mostly shows up through inconsistent older-market listings.
❌18.8% higher power demand at 95W vs 80W.

Xeon X5270

2008

Why buy it

✅Better for gaming: +3.7% higher average FPS across 50 shared CPU benchmark tests.
✅+200% larger total L3 cache (6 MB vs 2 MB).
✅Draws 80W instead of 95W, a 15W reduction.

Trade-offs

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

Quick Answers

So, is Xeon X5270 better than Phenom X4 9750B?

Not really, because they are built for different jobs. Xeon X5270 makes more sense for workstation-style multi-core throughput, while Phenom X4 9750B is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Xeon X5270 is the better pick. According to our tests, it delivers 3.7% 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, Xeon X5270 is the stronger fit. You are getting 0.3% better PassMark. It also has the larger cache pool with 200% larger total L3 cache (6 MB vs 2 MB).

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

Xeon X5270 is still the much better call for a fresh build. Xeon X5270 comes in at an unclear MSRP at unclear MSRP versus $215 MSRP, and it still gives you a 3.7% average FPS lead across 50 shared CPU game tests in our data. Phenom X4 9750B only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2008 platform. Even with 100.0% better value on paper (7.1 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on AM2+.

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

Xeon X5270 is the safer long-term CPU choice because it gives you more room to grow and a better platform outlook.

Phenom X4 9750B vs Xeon X5270 Technical Specifications

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

Phenom X4 9750B

The Phenom X4 9750B is manufactured by AMD. It was released in 2009-01-01. It is based on the Agena (2007−2008) architecture. It features 4 cores and 4 threads. Max frequency: 2.4 GHz. L3 cache: 2 MB (total). L2 cache: 512 kB (per core). Built on 65 nm process technology. Socket: AM2+. Thermal design power (TDP): 95 Watt. Passmark benchmark score: 1,520 points. Launch price was $149.

Xeon X5270

The Xeon X5270 is manufactured by Intel. It was released in 2015-01-01. Base frequency: 3.5 GHz. L3 cache: 6 MB L2 Cache. Built on 45 nm process technology. Socket: LGA771. Thermal design power (TDP): 80 Watt. Passmark benchmark score: 1,524 points. Launch price was $800.

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Processing Power

The Phenom X4 9750B is built on the Agena (2007−2008) architecture. In PassMark, the Phenom X4 9750B scores 1,520 against the Xeon X5270's 1,524 — a 0.3% lead for the Xeon X5270. L3 cache: 2 MB (total) on the Phenom X4 9750B vs 6 MB L2 Cache on the Xeon X5270.

Feature	Phenom X4 9750B	Xeon X5270
Cores / Threads	4 / 4	—
Boost Clock	2.4 GHz	—
Base Clock	—	3.5 GHz
L3 Cache	2 MB (total)	6 MB L2 Cache+200%
L2 Cache	512 kB (per core)	—
Process	65 nm	45 nm-31%
Architecture	Agena (2007−2008)	—
PassMark	1,520	1,524
Geekbench 6 Single	300	—
Geekbench 6 Multi	1,000	—

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Memory & Platform

The Phenom X4 9750B uses the AM2+ socket (PCIe 2.0), while the Xeon X5270 uses LGA771 (PCIe 2.0) — making them incompatible on the same motherboard.