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 i7-620LM vs Pentium G645 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 i7-620LM vs Pentium G645: Pros, Cons & Final Verdict

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

Core i7-620LM

2010

Why buy it

✅+0.9% higher PassMark.
✅+33.3% larger total L3 cache (4 MB vs 3 MB).
✅Draws 25W instead of 65W, a 40W reduction.
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel HD Graphics, while Pentium G645 needs a discrete GPU.

Trade-offs

❌Lower PassMark per dollar, at 4.9 vs 18.1 PassMark/$ ($300 MSRP vs $80 MSRP).

Pentium G645

2012

Why buy it

✅Costs $220 less on MSRP ($80 MSRP vs $300 MSRP).
✅Delivers 271.7% more PassMark for each dollar spent, at 18.1 vs 4.9 PassMark/$ ($80 MSRP vs $300 MSRP).

Trade-offs

❌Lower PassMark (1,450 vs 1,463).
❌Smaller total L3 cache (3 MB vs 4 MB).
❌160% higher power demand at 65W vs 25W.
❌No integrated graphics, while Core i7-620LM can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Pentium G645 better than Core i7-620LM?

It depends on what you want from the system. For gaming, Pentium G645 is ahead with a 1.8% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i7-620LM pulls ahead with 0.9% better PassMark. Core i7-620LM also has the bigger cache pool with 33.3% larger total L3 cache (4 MB vs 3 MB).

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Core i7-620LM is the stronger fit. You are getting 0.9% better PassMark, backed by 2 cores and 4 threads. It also has the larger cache pool with 33.3% larger total L3 cache (4 MB vs 3 MB).

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

Pentium G645 is the better buy right now. Pentium G645 comes in $220 cheaper on MSRP at $80 MSRP versus $300 MSRP, and it still gives you a 1.8% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Core i7-620LM is still stronger for heavier multi-core work with 0.9% better PassMark. It is also 271.7% better value on MSRP (18.1 vs 4.9 PassMark/$), 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 G645 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2012 vs 2010). That makes it the safer long-term bet.

Core i7-620LM vs Pentium G645 Technical Specifications

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

Core i7-620LM

The Core i7-620LM is manufactured by Intel. It was released in 7 January 2010 (15 years ago). It is based on the Arrandale (2010−2011) architecture. It features 2 cores and 4 threads. Base frequency is 2 GHz, with boost up to 2.8 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: BGA1288. Thermal design power (TDP): 25 Watt. Memory support: DDR3-800, DDR3-1066. Passmark benchmark score: 1,463 points. Launch price was $300.

Pentium G645

The Pentium G645 is manufactured by Intel. It was released in 2 September 2012 (13 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.9 GHz, with boost up to 2.9 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,450 points. Launch price was $80.

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Processing Power

The Core i7-620LM packs 2 cores / 4 threads, matching the Pentium G645's 2 cores. Boost clocks reach 2.8 GHz on the Core i7-620LM versus 2.9 GHz on the Pentium G645 — a 3.5% clock advantage for the Pentium G645 (base: 2 GHz vs 2.9 GHz). The Core i7-620LM uses the Arrandale (2010−2011) architecture (32 nm), while the Pentium G645 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Core i7-620LM scores 1,463 against the Pentium G645's 1,450 — a 0.9% lead for the Core i7-620LM. L3 cache: 4 MB (total) on the Core i7-620LM vs 3 MB (total) on the Pentium G645.

Feature	Core i7-620LM	Pentium G645
Cores / Threads	2 / 4	2 / 2
Boost Clock	2.8 GHz	2.9 GHz+4%
Base Clock	2 GHz	2.9 GHz+45%
L3 Cache	4 MB (total)+33%	3 MB (total)
L2 Cache	256 kB (per core)	256 kB (per core)
Process	32 nm	32 nm
Architecture	Arrandale (2010−2011)	Sandy Bridge (2011−2013)
PassMark	1,463	1,450
Geekbench 6 Single	450	—
Geekbench 6 Multi	900	—

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Memory & Platform

The Core i7-620LM uses the BGA1288 socket (PCIe 2.0), while the Pentium G645 uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Core i7-620LM	Pentium G645
Socket	BGA1288	LGA1155
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	DDR3-1066	—
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 i7-620LM) / not specified (Pentium G645). The Core i7-620LM includes integrated graphics (Intel HD Graphics), while the Pentium G645 requires a dedicated GPU. Primary use case: Core i7-620LM targets Budget. Direct competitor: Core i7-620LM rivals Ryzen 5 3500U.

Feature	Core i7-620LM	Pentium G645
Integrated GPU	Yes	—
IGPU Model	Intel HD Graphics	—
Unlocked	No	—
AVX-512	No	—
Virtualization	VT-x, VT-d	—
Target Use	Budget	—

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Value Analysis

At launch, the Core i7-620LM was priced at $300, while the Pentium G645 came in at $80. On launch pricing ($300 vs $80), Pentium G645 was $220 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i7-620LM delivers 4.9 pts/$ vs 18.1 pts/$ for the Pentium G645 — making the Pentium G645 the 115.2% better value option.

Feature	Core i7-620LM	Pentium G645
MSRP	$300	$80-73%
Performance per Dollar	4.9	18.1+269%
Release Date	2010	2012

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