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 4305U vs Core 2 Duo T5600 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.

Celeron 4305U vs Core 2 Duo T5600: Pros, Cons & Final Verdict

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

Celeron 4305U

2019

Why buy it

✅Costs $134 less on MSRP ($107 MSRP vs $241 MSRP).
✅Delivers 125.5% more PassMark for each dollar spent, at 14.6 vs 6.5 PassMark/$ ($107 MSRP vs $241 MSRP).
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel UHD Graphics 610, while Core 2 Duo T5600 needs a discrete GPU.

Trade-offs

❌650% higher power demand at 15W vs 2W.

Core 2 Duo T5600

2006

Why buy it

✅Draws 2W instead of 15W, a 13W reduction.

Trade-offs

❌Lower PassMark (1,560 vs 1,562).
❌Lower PassMark per dollar, at 6.5 vs 14.6 PassMark/$ ($241 MSRP vs $107 MSRP).
❌No integrated graphics, while Celeron 4305U can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Celeron 4305U better than Core 2 Duo T5600?

Yes. Celeron 4305U is the better all-around CPU here. It gives you a 2.1% average FPS lead across 50 shared CPU game tests in our data, 0.1% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Celeron 4305U is the better pick. According to our tests, it delivers 2.1% 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, Celeron 4305U is the stronger fit. You are getting 0.1% better PassMark, backed by 2 cores and 2 threads.

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

Celeron 4305U is the better buy right now. Celeron 4305U comes in $134 cheaper on MSRP at $107 MSRP versus $241 MSRP, and it still gives you a 2.1% average FPS lead across 50 shared CPU game tests in our data. It is also 125.5% better value on MSRP (14.6 vs 6.5 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Celeron 4305U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2019 vs 2006) 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.

Celeron 4305U vs Core 2 Duo T5600 Technical Specifications

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

Celeron 4305U

The Celeron 4305U is manufactured by Intel. It was released in 16 April 2019 (6 years ago). It is based on the Whiskey Lake-U (2018−2019) architecture. It features 2 cores and 2 threads. Base frequency is 2.2 GHz, with boost up to 2.2 GHz. L3 cache: 2 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR4-2133, LPDDR3-1866. Passmark benchmark score: 1,562 points. Launch price was $107.

Core 2 Duo T5600

The Core 2 Duo T5600 is manufactured by Intel. It was released in 28 July 2006 (19 years ago). It is based on the Merom (2006−2008) architecture. It features 2 cores and 2 threads. Base frequency is 1.83 GHz, with boost up to 1.83 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 34 Watt. Passmark benchmark score: 1,560 points. Launch price was $241.

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Processing Power

Both the Celeron 4305U and Core 2 Duo T5600 share an identical 2-core/2-thread configuration. Boost clocks reach 2.2 GHz on the Celeron 4305U versus 1.83 GHz on the Core 2 Duo T5600 — a 18.4% clock advantage for the Celeron 4305U (base: 2.2 GHz vs 1.83 GHz). The Celeron 4305U uses the Whiskey Lake-U (2018−2019) architecture (14 nm), while the Core 2 Duo T5600 uses Merom (2006−2008) (65 nm). In PassMark, the Celeron 4305U scores 1,562 against the Core 2 Duo T5600's 1,560 — a 0.1% lead for the Celeron 4305U. L3 cache: 2 MB (total) on the Celeron 4305U vs 0 kB on the Core 2 Duo T5600.

Feature	Celeron 4305U	Core 2 Duo T5600
Cores / Threads	2 / 2	2 / 2
Boost Clock	2.2 GHz+20%	1.83 GHz
Base Clock	2.2 GHz+20%	1.83 GHz
L3 Cache	2 MB (total)	0 kB
L2 Cache	256 kB (per core)	2 MB+700%
Process	14 nm-78%	65 nm
Architecture	Whiskey Lake-U (2018−2019)	Merom (2006−2008)
PassMark	1,562	1,560

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Memory & Platform

The Celeron 4305U uses the FCBGA1528 socket (PCIe 3.0), while the Core 2 Duo T5600 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard. Maximum memory speed reaches 2133 on the Celeron 4305U versus DDR2-667 on the Core 2 Duo T5600 — the Celeron 4305U supports 219.8% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron 4305U supports up to 64 GB of RAM compared to 4 GB — 1500% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Celeron 4305U) vs 0 (Core 2 Duo T5600) — the Celeron 4305U offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Whiskey Lake-U (Celeron 4305U) and 945GM,945PM (Core 2 Duo T5600).

Feature	Celeron 4305U	Core 2 Duo T5600
Socket	FCBGA1528	PGA478
PCIe Generation	PCIe 3.0+173%	PCIe 1.1
Max RAM Speed	2133+220%	DDR2-667
Max RAM Capacity	64 GB+1500%	4 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16	0

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Advanced Features

Virtualization: true (Celeron 4305U) / not specified (Core 2 Duo T5600). The Celeron 4305U includes integrated graphics (Intel UHD Graphics 610), while the Core 2 Duo T5600 requires a dedicated GPU. Primary use case: Celeron 4305U targets Budget. Direct competitor: Celeron 4305U rivals Pentium Gold 5405U.

Feature	Celeron 4305U	Core 2 Duo T5600
Integrated GPU	Yes	No
IGPU Model	Intel UHD Graphics 610	—
Unlocked	No	—
AVX-512	No	—
Virtualization	true	—
Target Use	Budget	—

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Value Analysis

At launch, the Celeron 4305U was priced at $107, while the Core 2 Duo T5600 came in at $241. On launch pricing ($107 vs $241), Celeron 4305U was $134 cheaper. In terms of value on MSRP (PassMark points per dollar), the Celeron 4305U delivers 14.6 pts/$ vs 6.5 pts/$ for the Core 2 Duo T5600 — making the Celeron 4305U the 77.1% better value option.

Feature	Celeron 4305U	Core 2 Duo T5600
MSRP	$107-56%	$241
Performance per Dollar	14.6+125%	6.5
Release Date	2019	2006

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