Celeron M 585 vs Pentium G620T

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 M 585 vs Pentium G620T 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 M 585 vs Pentium G620T: Pros, Cons & Final Verdict

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

Celeron M 585

2008

Why buy it

✅Better for gaming: +3.9% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 1W instead of 35W, a 34W reduction.

Trade-offs

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

Pentium G620T

2011

Why buy it

Trade-offs

❌Worse for gaming: lower average FPS than Celeron M 585 across 50 shared CPU benchmark tests.
❌Lower PassMark (2,055 vs 2,062).
❌Launch MSRP is still $64 MSRP, while Celeron M 585 mostly shows up through inconsistent older-market listings.
❌3400% higher power demand at 35W vs 1W.

Quick Answers

So, is Celeron M 585 better than Pentium G620T?

Yes. Celeron M 585 is the better all-around CPU here. It gives you a 3.9% 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, Celeron M 585 is the better pick. According to our tests, it delivers 3.9% 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 M 585 is the stronger fit. You are getting 0.3% better PassMark, backed by 1 cores and 1 threads.

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

Celeron M 585 is still the much better call for a fresh build. Celeron M 585 comes in at an unclear MSRP at unclear MSRP versus $64 MSRP, and it still gives you a 3.9% average FPS lead across 50 shared CPU game tests in our data. Pentium G620T only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2011 platform. Even with 100.0% better value on paper (32.1 vs 0.0 PassMark/$), 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 G620T makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2011 vs 2008). That makes it the safer long-term bet.

Celeron M 585 vs Pentium G620T Technical Specifications

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

Celeron M 585

The Celeron M 585 is manufactured by Intel. It was released in 20 August 2008 (17 years ago). It is based on the Merom (2006−2008) architecture. It features 1 cores and 1 threads. Max frequency: 2.16 GHz. L2 cache: 1 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 1 MB. Passmark benchmark score: 2,062 points. Launch price was $70.

Pentium G620T

The Pentium G620T is manufactured by Intel. It was released in 22 May 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.2 GHz, with boost up to 2.2 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 2,055 points. Launch price was $80.

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Processing Power

The Celeron M 585 packs 1 cores / 1 threads, while the Pentium G620T offers 2 cores / 2 threads — the Pentium G620T has 1 more core. Boost clocks reach 2.16 GHz on the Celeron M 585 versus 2.2 GHz on the Pentium G620T — a 1.8% clock advantage for the Pentium G620T. The Celeron M 585 uses the Merom (2006−2008) architecture (65 nm), while the Pentium G620T uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Celeron M 585 scores 2,062 against the Pentium G620T's 2,055 — a 0.3% lead for the Celeron M 585.

Feature	Celeron M 585	Pentium G620T
Cores / Threads	1 / 1	2 / 2+100%
Boost Clock	2.16 GHz	2.2 GHz+2%
Base Clock	—	2.2 GHz
L3 Cache	—	3 MB (total)
L2 Cache	1 MB+300%	256 kB (per core)
Process	65 nm	32 nm-51%
Architecture	Merom (2006−2008)	Sandy Bridge (2011−2013)
PassMark	2,062	2,055

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Memory & Platform

The Celeron M 585 uses the PGA478 socket (PCIe 1.1), while the Pentium G620T uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard.