Athlon II M300 vs Celeron G1820

CPU

GPU

Athlon II M300

2 Cores2 Thrd1 WWMax: 2 GHz2009

Similar parts

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Celeron G1820

2 Cores2 Thrd54 WWMax: 2.7 GHz2013

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Athlon II M300 vs Celeron G1820 Performance Spectrum

Athlon II M300

2 / 2

1,700

+0.2%

Ryzen Threadripper PRO 5945WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Celeron G1820

2 / 2

1,696

0.0%

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 II M300 vs Celeron G1820 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 II M300 vs Celeron G1820: Pros, Cons & Final Verdict

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

Athlon II M300

2009

Why buy it

✅+0.2% higher PassMark.
✅Costs $10 less on MSRP ($100 MSRP vs $110 MSRP).
✅Delivers 10.3% more PassMark for each dollar spent, at 17.0 vs 15.4 PassMark/$ ($100 MSRP vs $110 MSRP).
✅Draws 1W instead of 54W, a 53W reduction.

Trade-offs

❌No integrated graphics, while Celeron G1820 can still boot and troubleshoot without a discrete GPU.

Celeron G1820

2013

Why buy it

✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with HD Graphics (Haswell), while Athlon II M300 needs a discrete GPU.

Trade-offs

❌Lower PassMark (1,696 vs 1,700).
❌Lower PassMark per dollar, at 15.4 vs 17.0 PassMark/$ ($110 MSRP vs $100 MSRP).
❌5300% higher power demand at 54W vs 1W.

Quick Answers

So, is Athlon II M300 better than Celeron G1820?

It depends on what you want from the system. For gaming, Celeron G1820 is ahead with a 0.9% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Athlon II M300 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, Athlon II M300 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?

Athlon II M300 is the better buy right now. Athlon II M300 comes in $10 cheaper on MSRP at $100 MSRP versus $110 MSRP, and it still gives you 0.2% better PassMark. The compromise is that Celeron G1820 is still the better pure gaming CPU with a 0.9% average FPS lead across 50 shared CPU game tests in our data. It is also 10.3% better value on MSRP (17.0 vs 15.4 PassMark/$), 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 G1820 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2013 vs 2009). That makes it the safer long-term bet.

Athlon II M300 vs Celeron G1820 Technical Specifications

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

Athlon II M300

The Athlon II M300 is manufactured by AMD. It was released in 2009-01-01. It is based on the Caspian (2009) architecture. It features 2 cores and 2 threads. Max frequency: 2 GHz. L2 cache: 1 MB. Built on 45 nm process technology. Socket: S1g3. Thermal design power (TDP): 1 MB. Memory support: DDR2. Passmark benchmark score: 1,700 points. Launch price was $149.

Celeron G1820

The Celeron G1820 is manufactured by Intel. It was released in 1 December 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: 2 MB. L2 cache: 256 kB (per core). Built on 22 nm process technology. Socket: LGA1150. Thermal design power (TDP): 53 Watt. Memory support: DDR3. Passmark benchmark score: 1,696 points. Launch price was $110.

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Processing Power

Both the Athlon II M300 and Celeron G1820 share an identical 2-core/2-thread configuration. Boost clocks reach 2 GHz on the Athlon II M300 versus 2.7 GHz on the Celeron G1820 — a 29.8% clock advantage for the Celeron G1820. The Athlon II M300 uses the Caspian (2009) architecture (45 nm), while the Celeron G1820 uses Haswell (2013−2015) (22 nm). In PassMark, the Athlon II M300 scores 1,700 against the Celeron G1820's 1,696 — a 0.2% lead for the Athlon II M300.

Feature	Athlon II M300	Celeron G1820
Cores / Threads	2 / 2	2 / 2
Boost Clock	2 GHz	2.7 GHz+35%
Base Clock	—	2.7 GHz
L3 Cache	—	2 MB
L2 Cache	1 MB+300%	256 kB (per core)
Process	45 nm	22 nm-51%
Architecture	Caspian (2009)	Haswell (2013−2015)
PassMark	1,700	1,696
Geekbench 6 Single	—	496
Geekbench 6 Multi	—	910

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Memory & Platform

The Athlon II M300 uses the S1g3 socket (PCIe 2.0), while the Celeron G1820 uses LGA1150 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 800 on the Athlon II M300 versus DDR3-1333 on the Celeron G1820 — the Celeron G1820 supports 66.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron G1820 supports up to 32 GB of RAM compared to 8 GB — 300% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Athlon II M300) vs 16 (Celeron G1820) — the Celeron G1820 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: S1g3 (Athlon II M300) and H81,B85,H87,Z87,H97,Z97 (Celeron G1820).

Feature	Athlon II M300	Celeron G1820
Socket	S1g3	LGA1150
PCIe Generation	PCIe 2.0	PCIe 3.0+50%
Max RAM Speed	800	DDR3-1333+67%
Max RAM Capacity	8 GB	32 GB+300%
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	0	16

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Advanced Features

Neither processor supports overclocking. Virtualization support: true (Athlon II M300) vs VT-x (Celeron G1820). The Celeron G1820 includes integrated graphics (HD Graphics (Haswell)), while the Athlon II M300 requires a dedicated GPU. Primary use case: Celeron G1820 targets Budget. Direct competitor: Athlon II M300 rivals Core 2 Duo T6400; Celeron G1820 rivals Pentium G3220.

Feature	Athlon II M300	Celeron G1820
Integrated GPU	No	Yes
IGPU Model	None	HD Graphics (Haswell)
Unlocked	No	No
AVX-512	No	No
Virtualization	true	VT-x
Target Use	—	Budget

💰

Value Analysis

At launch, the Athlon II M300 was priced at $100, while the Celeron G1820 came in at $110. On launch pricing ($100 vs $110), Athlon II M300 was $10 cheaper. In terms of value on MSRP (PassMark points per dollar), the Athlon II M300 delivers 17.0 pts/$ vs 15.4 pts/$ for the Celeron G1820 — making the Athlon II M300 the 9.8% better value option.

Feature	Athlon II M300	Celeron G1820
MSRP	$100-9%	$110
Performance per Dollar	17.0+10%	15.4
Release Date	2009	2013

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