Celeron G1840T vs Phenom II X3 P820

Celeron G1840T vs Phenom II X3 P820 Performance Spectrum

Celeron G1840T

2 / 2

1,576

+1.0%

1,560

0.0%

Ryzen Threadripper PRO 5945WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

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.

Celeron G1840T vs Phenom II X3 P820 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 G1840T vs Phenom II X3 P820: Pros, Cons & Final Verdict

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

Celeron G1840T

2014

Why buy it

✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with HD Graphics (Haswell), while Phenom II X3 P820 needs a discrete GPU.

Trade-offs

❌Launch MSRP is still $42 MSRP, while Phenom II X3 P820 mostly shows up through inconsistent older-market listings.
❌3500% higher power demand at 54W vs 1.5W.

Phenom II X3 P820

2010

Why buy it

✅Draws 2W instead of 54W, a 53W reduction.

Trade-offs

❌Lower PassMark (1,560 vs 1,576).
❌No integrated graphics, while Celeron G1840T can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Celeron G1840T better than Phenom II X3 P820?

Yes. Celeron G1840T is the better all-around CPU here. It gives you a 0.9% average FPS lead across 50 shared CPU game tests in our data, 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 G1840T is the better pick. According to our tests, it delivers 0.9% 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 G1840T is the stronger fit. You are getting 1% better PassMark, backed by 2 cores and 2 threads.

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

Celeron G1840T is the better buy right now. Celeron G1840T comes in at an unclear MSRP at $42 MSRP versus unclear MSRP, and it still gives you a 0.9% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (37.5 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Celeron G1840T makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2014 vs 2010) and more multi-core headroom with 2 cores / 2 threads instead of 3/3. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Celeron G1840T vs Phenom II X3 P820 Technical Specifications

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

Celeron G1840T

The Celeron G1840T is manufactured by Intel. It was released in 2007-01-01. It is based on the Haswell (2013−2015) architecture. It features 2 cores and 2 threads. Base frequency is 2.5 GHz, with boost up to 2.5 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: 1,576 points. Launch price was $69.

Phenom II X3 P820

The Phenom II X3 P820 is manufactured by AMD. It was released in 2009-01-01. It is based on the Champlain (2010−2011) architecture. It features 3 cores and 3 threads. Max frequency: 1.8 GHz. L2 cache: 1.5 MB. Built on 45 nm process technology. Socket: S1. Thermal design power (TDP): 1.5 MB. Memory support: DDR3. Passmark benchmark score: 1,560 points. Launch price was $149.

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Processing Power

The Celeron G1840T packs 2 cores / 2 threads, while the Phenom II X3 P820 offers 3 cores / 3 threads — the Phenom II X3 P820 has 1 more core. Boost clocks reach 2.5 GHz on the Celeron G1840T versus 1.8 GHz on the Phenom II X3 P820 — a 32.6% clock advantage for the Celeron G1840T. The Celeron G1840T uses the Haswell (2013−2015) architecture (22 nm), while the Phenom II X3 P820 uses Champlain (2010−2011) (45 nm). In PassMark, the Celeron G1840T scores 1,576 against the Phenom II X3 P820's 1,560 — a 1% lead for the Celeron G1840T.

Feature	Celeron G1840T	Phenom II X3 P820
Cores / Threads	2 / 2	3 / 3+50%
Boost Clock	2.5 GHz+39%	1.8 GHz
Base Clock	2.5 GHz	—
L3 Cache	3 MB (total)	—
L2 Cache	256 kB (per core)	1.5 MB+500%
Process	22 nm-51%	45 nm
Architecture	Haswell (2013−2015)	Champlain (2010−2011)
PassMark	1,576+1%	1,560

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Memory & Platform

The Celeron G1840T uses the LGA1150 socket (PCIe 3.0), while the Phenom II X3 P820 uses S1 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Celeron G1840T	Phenom II X3 P820
Socket	LGA1150	S1
PCIe Generation	PCIe 3.0+50%	PCIe 2.0
Max RAM Speed	DDR3-1333	—
Max RAM Capacity	32 GB	—
RAM Channels	2	—
ECC Support	Yes	—
PCIe Lanes	16	—

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Advanced Features

Virtualization: VT-x (Celeron G1840T) / not specified (Phenom II X3 P820). The Celeron G1840T includes integrated graphics (HD Graphics (Haswell)), while the Phenom II X3 P820 requires a dedicated GPU. Primary use case: Celeron G1840T targets Budget. Direct competitor: Celeron G1840T rivals Pentium G3240T.