Core i5-2557M 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.

Core i5-2557M 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.

Core i5-2557M 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.

Core i5-2557M

2011

Why buy it

✅Draws 17W instead of 35W, a 18W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with HD Graphics 3000, while Pentium G2120T needs a discrete GPU.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Pentium G2120T

2013

Why buy it

Trade-offs

❌Lower PassMark (1,613 vs 1,618).
❌Launch MSRP is still $87 MSRP, while Core i5-2557M mostly shows up through inconsistent older-market listings.
❌105.9% higher power demand at 35W vs 17W.
❌No integrated graphics, while Core i5-2557M can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i5-2557M better than Pentium G2120T?

Yes. Core i5-2557M is the better all-around CPU here. It gives you a 0.3% average FPS lead across 50 shared CPU game tests in our data and 0.3% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core i5-2557M is the better pick. According to our tests, it delivers 0.3% 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, Core i5-2557M is the stronger fit. You are getting 0.3% better PassMark, backed by 2 cores and 4 threads.

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

Core i5-2557M is still the much better call for a fresh build. Core i5-2557M comes in at an unclear MSRP at unclear MSRP versus $87 MSRP, and it still gives you a 0.3% average FPS lead across 50 shared CPU game tests in our data. Pentium G2120T only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2013 platform. Even with 100.0% better value on paper (18.5 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on LGA1155.

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

Pentium G2120T makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2013 vs 2011). That makes it the safer long-term bet.

Core i5-2557M vs Pentium G2120T Technical Specifications

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

Core i5-2557M

The Core i5-2557M is manufactured by Intel. It was released in 1 June 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 4 threads. Base frequency is 1.7 GHz, with boost up to 2.7 GHz. L3 cache: 3 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: BGA1023. Thermal design power (TDP): 17 Watt. Memory support: DDR3. Passmark benchmark score: 1,618 points. Launch price was $250.

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.

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Processing Power

The Core i5-2557M packs 2 cores / 4 threads, matching the Pentium G2120T's 2 cores. The Core i5-2557M is built on the Sandy Bridge (2011−2013) architecture. In PassMark, the Core i5-2557M scores 1,618 against the Pentium G2120T's 1,613 — a 0.3% lead for the Core i5-2557M. L3 cache: 3 MB (total) on the Core i5-2557M vs 3 MB Intel® Smart Cache on the Pentium G2120T.

Feature	Core i5-2557M	Pentium G2120T
Cores / Threads	2 / 4	2 / 2
Boost Clock	2.7 GHz	—
Base Clock	1.7 GHz	2.7 GHz+59%
L3 Cache	3 MB (total)	3 MB Intel® Smart Cache
L2 Cache	256K (per core)	—
Process	32 nm	22 nm-31%
Architecture	Sandy Bridge (2011−2013)	—
PassMark	1,618	1,613
Geekbench 6 Single	521	—
Geekbench 6 Multi	882	—

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Memory & Platform

The Core i5-2557M uses the BGA1023 socket (PCIe 2.0), while the Pentium G2120T uses LGA1155 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i5-2557M	Pentium G2120T
Socket	BGA1023	LGA1155
PCIe Generation	PCIe 2.0	PCIe 3.0+50%
Max RAM Speed	DDR3-1333	—
Max RAM Capacity	8 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

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Advanced Features

Virtualization: VT-x, VT-d (Core i5-2557M) / not specified (Pentium G2120T). The Core i5-2557M includes integrated graphics (HD Graphics 3000), while the Pentium G2120T requires a dedicated GPU. Primary use case: Core i5-2557M targets Budget. Direct competitor: Core i5-2557M rivals Ryzen 3 3200U.