Pentium 3558U vs Pentium E6300

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 3558U vs Pentium E6300 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 3558U vs Pentium E6300: Pros, Cons & Final Verdict

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

Pentium 3558U

2014

Why buy it

✅+0.9% higher PassMark.

Trade-offs

❌687.7% higher power demand at 512W vs 65W.

Pentium E6300

2009

Why buy it

✅Draws 65W instead of 512W, a 447W reduction.

Trade-offs

❌Lower PassMark (1,032 vs 1,041).
❌Launch MSRP is still $84 MSRP, while Pentium 3558U mostly shows up through inconsistent older-market listings.

Quick Answers

So, is Pentium E6300 better than Pentium 3558U?

It depends on what you want from the system. For gaming, Pentium E6300 is ahead with a 2.0% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Pentium 3558U pulls ahead with 0.9% better PassMark.

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

For streaming, content creation, and heavier multitasking, Pentium 3558U is the stronger fit. You are getting 0.9% better PassMark, backed by 2 cores and 2 threads.

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

Pentium E6300 is the better buy right now. Pentium E6300 comes in at an unclear MSRP at $84 MSRP versus unclear MSRP, and it still gives you a 2.0% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Pentium 3558U is still stronger for heavier multi-core work with 0.9% better PassMark. It is also 100.0% better value on MSRP (12.3 vs 0.0 PassMark/$), 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 3558U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2014 vs 2009) and more multi-core headroom with 2 cores / 2 threads instead of 2/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Pentium 3558U vs Pentium E6300 Technical Specifications

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

Pentium 3558U

The Pentium 3558U is manufactured by Intel. It was released in 1 January 2014 (11 years ago). It is based on the Haswell (2013−2015) architecture. It features 2 cores and 2 threads. Base frequency is 1.7 GHz, with boost up to 1.7 GHz. L3 cache: 2 MB. L2 cache: 512 kB. Built on 22 nm process technology. Socket: FCBGA1168. Thermal design power (TDP): 15 Watt. Memory support: DDR3. Passmark benchmark score: 1,041 points. Launch price was $161.

Pentium E6300

The Pentium E6300 is manufactured by Intel. It was released in 9 May 2009 (16 years ago). It is based on the Wolfdale (2008−2010) architecture. It features 2 cores and 2 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 0 kB. L2 cache: 2 MB (total). Built on 45 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,032 points. Launch price was $40.

⚡

Processing Power

Both the Pentium 3558U and Pentium E6300 share an identical 2-core/2-thread configuration. Boost clocks reach 1.7 GHz on the Pentium 3558U versus 2.8 GHz on the Pentium E6300 — a 48.9% clock advantage for the Pentium E6300 (base: 1.7 GHz vs 2.8 GHz). The Pentium 3558U uses the Haswell (2013−2015) architecture (22 nm), while the Pentium E6300 uses Wolfdale (2008−2010) (45 nm). In PassMark, the Pentium 3558U scores 1,041 against the Pentium E6300's 1,032 — a 0.9% lead for the Pentium 3558U. L3 cache: 2 MB on the Pentium 3558U vs 0 kB on the Pentium E6300.

Feature	Pentium 3558U	Pentium E6300
Cores / Threads	2 / 2	2 / 2
Boost Clock	1.7 GHz	2.8 GHz+65%
Base Clock	1.7 GHz	2.8 GHz+65%
L3 Cache	2 MB	0 kB
L2 Cache	512 kB	2 MB (total)+300%
Process	22 nm-51%	45 nm
Architecture	Haswell (2013−2015)	Wolfdale (2008−2010)
PassMark	1,041	1,032

🧠

Memory & Platform

The Pentium 3558U uses the FCBGA1168 socket (PCIe 3.0), while the Pentium E6300 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard.