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.

Celeron M 575 vs Pentium G3420T FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

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Celeron M 575 vs Pentium G3420T: Pros, Cons & Final Verdict

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

Celeron M 575

2008

Why buy it

✅+0.3% higher PassMark.
✅Draws 1W instead of 35W, a 34W reduction.

Trade-offs

❌Lower PassMark per dollar, at 22.3 vs 25.5 PassMark/$ ($86 MSRP vs $75 MSRP).
❌No integrated graphics, while Pentium G3420T can still boot and troubleshoot without a discrete GPU.
❌No boxed cooler included, unlike Pentium G3420T.

Pentium G3420T

2013

Why buy it

✅Costs $11 less on MSRP ($75 MSRP vs $86 MSRP).
✅Delivers 14.4% more PassMark for each dollar spent, at 25.5 vs 22.3 PassMark/$ ($75 MSRP vs $86 MSRP).
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel HD Graphics, while Celeron M 575 needs a discrete GPU.
✅Includes a boxed cooler (Yes), unlike Celeron M 575.

Trade-offs

❌Lower PassMark (1,912 vs 1,917).
❌3400% higher power demand at 35W vs 1W.

Quick Answers

So, is Pentium G3420T better than Celeron M 575?

It depends on what you want from the system. For gaming, Pentium G3420T is ahead with a 0.1% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Celeron M 575 pulls ahead with 0.3% better PassMark.

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

For streaming, content creation, and heavier multitasking, Celeron M 575 is the stronger fit. You are getting 0.3% better PassMark, backed by 1 cores and 1 threads.

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

Pentium G3420T is the better buy right now. Pentium G3420T comes in $11 cheaper on MSRP at $75 MSRP versus $86 MSRP, and it still gives you a 0.1% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Celeron M 575 is still stronger for heavier multi-core work with 0.3% better PassMark. It is also 14.4% better value on MSRP (25.5 vs 22.3 PassMark/$), 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 G3420T makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2013 vs 2008). That makes it the safer long-term bet.

Celeron M 575 vs Pentium G3420T Technical Specifications

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

Celeron M 575

The Celeron M 575 is manufactured by Intel. It was released in 1 June 2008 (17 years ago). It is based on the Merom (2006−2008) architecture. It features 1 cores and 1 threads. Max frequency: 2 GHz. L2 cache: 1 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 1 MB. Passmark benchmark score: 1,917 points. Launch price was $86.

Pentium G3420T

The Pentium G3420T is manufactured by Intel. It was released in 1 September 2013 (12 years ago). It is based on the Haswell (2013−2015) architecture. It features 2 cores and 2 threads. Base frequency is 2.7 GHz, with boost up to 2.7 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 22 nm process technology. Socket: LGA1150. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 1,912 points. Launch price was $75.

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Processing Power

The Celeron M 575 packs 1 cores / 1 threads, while the Pentium G3420T offers 2 cores / 2 threads — the Pentium G3420T has 1 more core. Boost clocks reach 2 GHz on the Celeron M 575 versus 2.7 GHz on the Pentium G3420T — a 29.8% clock advantage for the Pentium G3420T. The Celeron M 575 uses the Merom (2006−2008) architecture (65 nm), while the Pentium G3420T uses Haswell (2013−2015) (22 nm). In PassMark, the Celeron M 575 scores 1,917 against the Pentium G3420T's 1,912 — a 0.3% lead for the Celeron M 575.

Feature	Celeron M 575	Pentium G3420T
Cores / Threads	1 / 1	2 / 2+100%
Boost Clock	2 GHz	2.7 GHz+35%
Base Clock	—	2.7 GHz
L3 Cache	—	3 MB (total)
L2 Cache	1 MB+300%	256 kB (per core)
Process	65 nm	22 nm-66%
Architecture	Merom (2006−2008)	Haswell (2013−2015)
PassMark	1,917	1,912

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Memory & Platform

The Celeron M 575 uses the PGA478 socket (PCIe 1.1), while the Pentium G3420T uses LGA1150 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 800 on the Celeron M 575 versus DDR3-1600 on the Pentium G3420T — the Pentium G3420T supports 100% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Pentium G3420T supports up to 32 GB of RAM compared to 4 GB — 700% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Celeron M 575) vs 16 (Pentium G3420T) — the Pentium G3420T offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: GL40,GM45 (Celeron M 575) and LGA1150 (Pentium G3420T).

Feature	Celeron M 575	Pentium G3420T
Socket	PGA478	LGA1150
PCIe Generation	PCIe 1.1	PCIe 3.0+173%
Max RAM Speed	800	DDR3-1600+100%
Max RAM Capacity	4 GB	32 GB+700%
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	0	16

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Advanced Features

Neither processor supports overclocking. Virtualization support: false (Celeron M 575) vs VT-x, VT-d (Pentium G3420T). The Pentium G3420T includes integrated graphics (Intel HD Graphics), while the Celeron M 575 requires a dedicated GPU. Direct competitor: Celeron M 575 rivals Mobile Sempron SI-40.

Feature	Celeron M 575	Pentium G3420T
Integrated GPU	No	Yes
IGPU Model	None	Intel HD Graphics
Unlocked	No	No
AVX-512	No	No
Virtualization	false	VT-x, VT-d

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Value Analysis

At launch, the Celeron M 575 was priced at $86, while the Pentium G3420T came in at $75. On launch pricing ($86 vs $75), Pentium G3420T was $11 cheaper. In terms of value on MSRP (PassMark points per dollar), the Celeron M 575 delivers 22.3 pts/$ vs 25.5 pts/$ for the Pentium G3420T — making the Pentium G3420T the 13.4% better value option.

Feature	Celeron M 575	Pentium G3420T
MSRP	$86	$75-13%
Performance per Dollar	22.3	25.5+14%
Release Date	2008	2013

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