Celeron G1820T vs Pentium G2120T

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 G1820T vs Pentium G2120T 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 G1820T vs Pentium G2120T: Pros, Cons & Final Verdict

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

Celeron G1820T

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 Pentium G2120T needs a discrete GPU.

Trade-offs

❌Lower PassMark (1,599 vs 1,613).
❌54.3% higher power demand at 54W vs 35W.

Pentium G2120T

2013

Why buy it

✅Draws 35W instead of 54W, a 19W reduction.

Trade-offs

❌Launch MSRP is still $87 MSRP, while Celeron G1820T mostly shows up through inconsistent older-market listings.
❌No integrated graphics, while Celeron G1820T can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Pentium G2120T better than Celeron G1820T?

Yes. Pentium G2120T is the better all-around CPU here. It gives you a 1.0% average FPS lead across 50 shared CPU game tests in our data, 0.9% 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, Pentium G2120T is the better pick. According to our tests, it delivers 1.0% 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, Pentium G2120T is the stronger fit. You are getting 0.9% better PassMark, backed by 2 cores and 2 threads.

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

Pentium G2120T is the better buy right now. Pentium G2120T comes in at an unclear MSRP at $87 MSRP versus unclear MSRP, and it still gives you a 1.0% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (18.5 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Pentium G2120T makes more sense long term for 2026 and beyond. You are getting 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 G1820T vs Pentium G2120T Technical Specifications

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

Celeron G1820T

The Celeron G1820T 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 2.4 GHz, with boost up to 2.4 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: 1,599 points. Launch price was $42.

Pentium G2120T

The Pentium G2120T is manufactured by Intel. It was released in 2007-01-01. It features 2 cores and 2 threads. Base frequency: 2.7 GHz. L3 cache: 3 MB Intel® Smart Cache. Built on 22 nm process technology. Socket: LGA1155. Thermal design power (TDP): 35 Watt. Memory support: DDR3-1333, DDR3-1600. Passmark benchmark score: 1,613 points. Launch price was $69.

⚡

Processing Power

Both the Celeron G1820T and Pentium G2120T share an identical 2-core/2-thread configuration. The Celeron G1820T is built on the Haswell (2013−2015) architecture. In PassMark, the Celeron G1820T scores 1,599 against the Pentium G2120T's 1,613 — a 0.9% lead for the Pentium G2120T. L3 cache: 3 MB (total) on the Celeron G1820T vs 3 MB Intel® Smart Cache on the Pentium G2120T.

Feature	Celeron G1820T	Pentium G2120T
Cores / Threads	2 / 2	2 / 2
Boost Clock	2.4 GHz	—
Base Clock	2.4 GHz	2.7 GHz+13%
L3 Cache	3 MB (total)	3 MB Intel® Smart Cache
L2 Cache	256 kB (per core)	—
Process	22 nm	22 nm
Architecture	Haswell (2013−2015)	—
PassMark	1,599	1,613
Geekbench 6 Single	415	—
Geekbench 6 Multi	629	—

🧠

Memory & Platform

The Celeron G1820T uses the LGA1150 socket (PCIe 3.0), while the Pentium G2120T uses LGA1155 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Celeron G1820T	Pentium G2120T
Socket	LGA1150	LGA1155
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR3-1333	—
Max RAM Capacity	32 GB	—
RAM Channels	2	—
ECC Support	Yes	—
PCIe Lanes	16	—

🔧

Advanced Features

Virtualization: VT-x (Celeron G1820T) / not specified (Pentium G2120T). The Celeron G1820T includes integrated graphics (HD Graphics (Haswell)), while the Pentium G2120T requires a dedicated GPU. Primary use case: Celeron G1820T targets Budget. Direct competitor: Celeron G1820T rivals Pentium G3220T.