Athlon X2 QL-66 vs Celeron 4305UE

Athlon X2 QL-66 vs Celeron 4305UE Performance Spectrum

Athlon X2 QL-66

2 / 2

1,695

0.0%

Ryzen Threadripper PRO 5945WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Celeron 4305UE

2 / 2

1,699

+0.2%

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.

Athlon X2 QL-66 vs Celeron 4305UE 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.

Athlon X2 QL-66 vs Celeron 4305UE: Pros, Cons & Final Verdict

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

Athlon X2 QL-66

2009

Why buy it

✅Draws 1W instead of 15W, a 14W reduction.

Trade-offs

❌Lower PassMark (1,695 vs 1,699).
❌Lower PassMark per dollar, at 11.3 vs 15.9 PassMark/$ ($150 MSRP vs $107 MSRP).
❌No integrated graphics, while Celeron 4305UE can still boot and troubleshoot without a discrete GPU.

Celeron 4305UE

2018

Why buy it

✅+0.2% higher PassMark.
✅Costs $43 less on MSRP ($107 MSRP vs $150 MSRP).
✅Delivers 40.5% more PassMark for each dollar spent, at 15.9 vs 11.3 PassMark/$ ($107 MSRP vs $150 MSRP).
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with UHD Graphics 610, while Athlon X2 QL-66 needs a discrete GPU.

Trade-offs

❌1400% higher power demand at 15W vs 1W.

Quick Answers

So, is Celeron 4305UE better than Athlon X2 QL-66?

It depends on what you want from the system. For gaming, Athlon X2 QL-66 is ahead with a 2.3% average FPS lead across 49 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Celeron 4305UE pulls ahead with 0.2% better PassMark.

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

For streaming, content creation, and heavier multitasking, Celeron 4305UE is the stronger fit. You are getting 0.2% better PassMark, backed by 2 cores and 2 threads.

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

Celeron 4305UE is the better buy right now. Celeron 4305UE comes in $43 cheaper on MSRP at $107 MSRP versus $150 MSRP, and it still gives you 0.2% better PassMark. The compromise is that Athlon X2 QL-66 is still the better pure gaming CPU with a 2.3% average FPS lead across 49 shared CPU game tests in our data. It is also 40.5% better value on MSRP (15.9 vs 11.3 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Celeron 4305UE makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2018 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.

Athlon X2 QL-66 vs Celeron 4305UE Technical Specifications

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

Athlon X2 QL-66

The Athlon X2 QL-66 is manufactured by AMD. It was released in 2009-01-01. It is based on the Lion (2008−2009) architecture. It features 2 cores and 2 threads. Max frequency: 2.2 GHz. L2 cache: 1 MB. Built on 65 nm process technology. Socket: S1g2. Thermal design power (TDP): 1 MB. Passmark benchmark score: 1,695 points. Launch price was $149.

Celeron 4305UE

The Celeron 4305UE is manufactured by Intel. It was released in 1 October 2018 (7 years ago). It is based on the Whiskey Lake-U (2018−2019) architecture. It features 2 cores and 2 threads. Max frequency: 2 GHz. L3 cache: 2 MB (total). L2 cache: 256 kB (per core). Built on 10 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 1,699 points. Launch price was $107.

⚡

Processing Power

Both the Athlon X2 QL-66 and Celeron 4305UE share an identical 2-core/2-thread configuration. Boost clocks reach 2.2 GHz on the Athlon X2 QL-66 versus 2 GHz on the Celeron 4305UE — a 9.5% clock advantage for the Athlon X2 QL-66. The Athlon X2 QL-66 uses the Lion (2008−2009) architecture (65 nm), while the Celeron 4305UE uses Whiskey Lake-U (2018−2019) (10 nm). In PassMark, the Athlon X2 QL-66 scores 1,695 against the Celeron 4305UE's 1,699 — a 0.2% lead for the Celeron 4305UE.

Feature	Athlon X2 QL-66	Celeron 4305UE
Cores / Threads	2 / 2	2 / 2
Boost Clock	2.2 GHz+10%	2 GHz
L3 Cache	—	2 MB (total)
L2 Cache	1 MB+300%	256 kB (per core)
Process	65 nm	10 nm-85%
Architecture	Lion (2008−2009)	Whiskey Lake-U (2018−2019)
PassMark	1,695	1,699
Geekbench 6 Single	—	670
Geekbench 6 Multi	—	1,065

🧠

Memory & Platform

The Athlon X2 QL-66 uses the S1g2 socket (PCIe 2.0), while the Celeron 4305UE uses FCBGA1528 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2-667 on the Athlon X2 QL-66 versus DDR4-2133 on the Celeron 4305UE — the Celeron 4305UE supports 219.8% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron 4305UE supports up to 64 GB of RAM compared to 8 GB — 700% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Athlon X2 QL-66) vs 16 (Celeron 4305UE) — the Celeron 4305UE offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD S1 (Athlon X2 QL-66) and Whiskey Lake (Celeron 4305UE).

Feature	Athlon X2 QL-66	Celeron 4305UE
Socket	S1g2	FCBGA1528
PCIe Generation	PCIe 2.0	PCIe 3.0+50%
Max RAM Speed	DDR2-667	DDR4-2133+220%
Max RAM Capacity	8 GB	64 GB+700%
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	0	16

🔧

Advanced Features

Virtualization: not specified (Athlon X2 QL-66) / VT-x, VT-d, EPT (Celeron 4305UE). The Celeron 4305UE includes integrated graphics (UHD Graphics 610), while the Athlon X2 QL-66 requires a dedicated GPU. Primary use case: Celeron 4305UE targets Budget. Direct competitor: Celeron 4305UE rivals Athlon Silver 3050GE.

Feature	Athlon X2 QL-66	Celeron 4305UE
Integrated GPU	No	Yes
IGPU Model	—	UHD Graphics 610
Unlocked	—	No
AVX-512	—	No
Virtualization	—	VT-x, VT-d, EPT
Target Use	—	Budget

💰

Value Analysis

At launch, the Athlon X2 QL-66 was priced at $150, while the Celeron 4305UE came in at $107. On launch pricing ($150 vs $107), Celeron 4305UE was $43 cheaper. In terms of value on MSRP (PassMark points per dollar), the Athlon X2 QL-66 delivers 11.3 pts/$ vs 15.9 pts/$ for the Celeron 4305UE — making the Celeron 4305UE the 33.7% better value option.

Feature	Athlon X2 QL-66	Celeron 4305UE
MSRP	$150	$107-29%
Performance per Dollar	11.3	15.9+41%
Release Date	2009	2018

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