Core i5-4350U vs Phenom II X4 850

Core i5-4350U vs Phenom II X4 850 Performance Spectrum

Core i5-4350U

2 / 4

2,425

0.0%

2,441

+0.7%

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.

Core i5-4350U vs Phenom II X4 850 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.

Core i5-4350U vs Phenom II X4 850: Pros, Cons & Final Verdict

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

Core i5-4350U

2013

Why buy it

Trade-offs

❌Lower PassMark (2,425 vs 2,441).
❌438.9% higher power demand at 512W vs 95W.

Phenom II X4 850

2011

Why buy it

✅Draws 95W instead of 512W, a 417W reduction.

Trade-offs

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

Quick Answers

So, is Phenom II X4 850 better than Core i5-4350U?

Yes. Phenom II X4 850 is the better all-around CPU here. It gives you a 2.2% average FPS lead across 50 shared CPU game tests in our data and 0.7% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Phenom II X4 850 is the better pick. According to our tests, it delivers 2.2% 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, Phenom II X4 850 is the stronger fit. You are getting 0.7% better PassMark, backed by 4 cores and 4 threads.

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

Phenom II X4 850 still makes the most sense overall. Phenom II X4 850 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 2.2% average FPS lead across 50 shared CPU game tests in our data.

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

Core i5-4350U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2013 vs 2011). That makes it the safer long-term bet.

Core i5-4350U vs Phenom II X4 850 Technical Specifications

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

Core i5-4350U

The Core i5-4350U is manufactured by Intel. It was released in 4 June 2013 (12 years ago). It is based on the Haswell (2013−2015) architecture. It features 2 cores and 4 threads. Base frequency is 1.4 GHz, with boost up to 2.9 GHz. L3 cache: 3 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: FCBGA1168. Thermal design power (TDP): 15 Watt. Memory support: DDR3. Passmark benchmark score: 2,425 points. Launch price was $342.

Phenom II X4 850

The Phenom II X4 850 is manufactured by AMD. It was released in 1 June 2011 (14 years ago). It is based on the Propus (2009−2011) architecture. It features 4 cores and 4 threads. Base frequency is 3.3 GHz, with boost up to 3.3 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 2,441 points. Launch price was $111.

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Processing Power

The Core i5-4350U packs 2 cores / 4 threads, while the Phenom II X4 850 offers 4 cores / 4 threads — the Phenom II X4 850 has 2 more cores. Boost clocks reach 2.9 GHz on the Core i5-4350U versus 3.3 GHz on the Phenom II X4 850 — a 12.9% clock advantage for the Phenom II X4 850 (base: 1.4 GHz vs 3.3 GHz). The Core i5-4350U uses the Haswell (2013−2015) architecture (22 nm), while the Phenom II X4 850 uses Propus (2009−2011) (45 nm). In PassMark, the Core i5-4350U scores 2,425 against the Phenom II X4 850's 2,441 — a 0.7% lead for the Phenom II X4 850. L3 cache: 3 MB (total) on the Core i5-4350U vs 0 kB on the Phenom II X4 850.

Feature	Core i5-4350U	Phenom II X4 850
Cores / Threads	2 / 4	4 / 4+100%
Boost Clock	2.9 GHz	3.3 GHz+14%
Base Clock	1.4 GHz	3.3 GHz+136%
L3 Cache	3 MB (total)	0 kB
L2 Cache	256K (per core)	512 kB (per core)+100%
Process	22 nm-51%	45 nm
Architecture	Haswell (2013−2015)	Propus (2009−2011)
PassMark	2,425	2,441

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Memory & Platform

The Core i5-4350U uses the FCBGA1168 socket (PCIe 3.0), while the Phenom II X4 850 uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard.