Pentium 2129Y vs Phenom X4 9750B

Pentium 2129Y vs Phenom X4 9750B Performance Spectrum

Pentium 2129Y

2 / 2

1,502

0.0%

Pentium U5600

Celeron 1019Y

Core i3-370M

Pentium Dual Core T4500

1,520

+1.2%

Ryzen Threadripper PRO 5945WX

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.

Pentium 2129Y vs Phenom X4 9750B 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.

Pentium 2129Y vs Phenom X4 9750B: Pros, Cons & Final Verdict

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

Pentium 2129Y

2012

Why buy it

Trade-offs

❌Lower PassMark (1,502 vs 1,520).
❌438.9% higher power demand at 512W vs 95W.

Phenom X4 9750B

2008

Why buy it

✅Draws 95W instead of 512W, a 417W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Launch MSRP is still $215 MSRP, while Pentium 2129Y mostly shows up through inconsistent older-market listings.

Quick Answers

So, is Phenom X4 9750B better than Pentium 2129Y?

Yes. Phenom X4 9750B is the better all-around CPU here. It gives you a 0.6% average FPS lead across 50 shared CPU game tests in our data and 1.2% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Phenom X4 9750B is the better pick. According to our tests, it delivers 0.6% 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, Phenom X4 9750B is the stronger fit. You are getting 1.2% better PassMark, backed by 4 cores and 4 threads.

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

Phenom X4 9750B is the better buy right now. Phenom X4 9750B comes in at an unclear MSRP at $215 MSRP versus unclear MSRP, and it still gives you a 0.6% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (7.1 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Pentium 2129Y makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2012 vs 2008). That makes it the safer long-term bet.

Pentium 2129Y vs Phenom X4 9750B Technical Specifications

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

Pentium 2129Y

The Pentium 2129Y is manufactured by Intel. It was released in 1 September 2012 (13 years ago). It is based on the Ivy Bridge (2012−2013) architecture. It features 2 cores and 2 threads. Base frequency is 1.1 GHz, with boost up to 1.1 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: BGA1023. Thermal design power (TDP): 10 Watt. Memory support: DDR3. Passmark benchmark score: 1,502 points. Launch price was $150.

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.

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Processing Power

The Pentium 2129Y packs 2 cores / 2 threads, while the Phenom X4 9750B offers 4 cores / 4 threads — the Phenom X4 9750B has 2 more cores. Boost clocks reach 1.1 GHz on the Pentium 2129Y versus 2.4 GHz on the Phenom X4 9750B — a 74.3% clock advantage for the Phenom X4 9750B. The Pentium 2129Y uses the Ivy Bridge (2012−2013) architecture (22 nm), while the Phenom X4 9750B uses Agena (2007−2008) (65 nm). In PassMark, the Pentium 2129Y scores 1,502 against the Phenom X4 9750B's 1,520 — a 1.2% lead for the Phenom X4 9750B. Both processors carry 2 MB (total) of L3 cache.

Feature	Pentium 2129Y	Phenom X4 9750B
Cores / Threads	2 / 2	4 / 4+100%
Boost Clock	1.1 GHz	2.4 GHz+118%
Base Clock	1.1 GHz	—
L3 Cache	2 MB (total)	2 MB (total)
L2 Cache	256K (per core)	512 kB (per core)+100%
Process	22 nm-66%	65 nm
Architecture	Ivy Bridge (2012−2013)	Agena (2007−2008)
PassMark	1,502	1,520+1%
Geekbench 6 Single	—	300
Geekbench 6 Multi	—	1,000

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Memory & Platform

The Pentium 2129Y uses the BGA1023 socket (PCIe 3.0), while the Phenom X4 9750B uses AM2+ (PCIe 2.0) — making them incompatible on the same motherboard.