Core i3-5015U vs Core i7-620M

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 i3-5015U vs Core i7-620M 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 i3-5015U vs Core i7-620M: Pros, Cons & Final Verdict

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

Core i3-5015U

2015

Why buy it

✅+0.7% higher PassMark.

Trade-offs

❌Smaller total L3 cache (3 MB vs 4 MB).
❌1362.9% higher power demand at 512W vs 35W.

Core i7-620M

2010

Why buy it

✅+33.3% larger total L3 cache (4 MB vs 3 MB).
✅Draws 35W instead of 512W, a 477W reduction.
✅33.3% more PCIe lanes (16 vs 12) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (1,976 vs 1,990).

Quick Answers

So, is Core i3-5015U better than Core i7-620M?

It depends on what you want from the system. For gaming, Core i7-620M is ahead with a 2.5% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i3-5015U pulls ahead with 0.7% better PassMark. Core i7-620M 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 i3-5015U is the stronger fit. You are getting 0.7% better PassMark, backed by 2 cores and 4 threads.

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

Core i3-5015U still makes the most sense overall. Core i3-5015U comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 0.7% better PassMark.

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

Core i3-5015U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2015 vs 2010) and more multi-core headroom with 2 cores / 4 threads instead of 2/4. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i3-5015U vs Core i7-620M Technical Specifications

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

Core i3-5015U

The Core i3-5015U is manufactured by Intel. It was released in 1 March 2015 (10 years ago). It is based on the Broadwell-U (2015) architecture. It features 2 cores and 4 threads. Base frequency is 2.1 GHz, with boost up to 2.1 GHz. L3 cache: 3 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: FCBGA1168. Thermal design power (TDP): 15 Watt. Memory support: DDR3. Passmark benchmark score: 1,990 points. Launch price was $275.

Core i7-620M

The Core i7-620M 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 2.66 GHz, with boost up to 3.33 GHz. L3 cache: 4 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: PGA988. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 1,976 points. Launch price was $332.

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Processing Power

Both the Core i3-5015U and Core i7-620M share an identical 2-core/4-thread configuration. Boost clocks reach 2.1 GHz on the Core i3-5015U versus 3.33 GHz on the Core i7-620M — a 45.3% clock advantage for the Core i7-620M (base: 2.1 GHz vs 2.66 GHz). The Core i3-5015U uses the Broadwell-U (2015) architecture (14 nm), while the Core i7-620M uses Arrandale (2010−2011) (32 nm). In PassMark, the Core i3-5015U scores 1,990 against the Core i7-620M's 1,976 — a 0.7% lead for the Core i3-5015U. L3 cache: 3 MB (total) on the Core i3-5015U vs 4 MB (total) on the Core i7-620M.

Feature	Core i3-5015U	Core i7-620M
Cores / Threads	2 / 4	2 / 4
Boost Clock	2.1 GHz	3.33 GHz+59%
Base Clock	2.1 GHz	2.66 GHz+27%
L3 Cache	3 MB (total)	4 MB (total)+33%
L2 Cache	256K (per core)	256K (per core)
Process	14 nm-56%	32 nm
Architecture	Broadwell-U (2015)	Arrandale (2010−2011)
PassMark	1,990	1,976
Geekbench 6 Single	—	350
Geekbench 6 Multi	—	800

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Memory & Platform

The Core i3-5015U uses the FCBGA1168 socket (PCIe 3.0), while the Core i7-620M uses PGA988 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3L-1600 on the Core i3-5015U versus DDR3-1066 on the Core i7-620M — the Core i3-5015U supports 50.1% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i3-5015U supports up to 16 GB of RAM compared to 8 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 12 (Core i3-5015U) vs 16 (Core i7-620M) — the Core i7-620M offers 4 more lanes for additional GPUs or NVMe drives.

Feature	Core i3-5015U	Core i7-620M
Socket	FCBGA1168	PGA988
PCIe Generation	PCIe 3.0+50%	PCIe 2.0
Max RAM Speed	DDR3L-1600+50%	DDR3-1066
Max RAM Capacity	16 GB+100%	8 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	12	16+33%

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Advanced Features

Neither processor supports overclocking. Both support VT-x, VT-d virtualization. Both include integrated graphics — HD Graphics 5500 (Core i3-5015U) and Intel HD Graphics (Core i7-620M) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i3-5015U targets Mobile, Core i7-620M targets Performance Laptop. Direct competitor: Core i7-620M rivals Core 2 Duo T9600.

Feature	Core i3-5015U	Core i7-620M
Integrated GPU	Yes	Yes
IGPU Model	HD Graphics 5500	Intel HD Graphics
Unlocked	No	No
AVX-512	No	No
Virtualization	VT-x, VT-d	VT-x, VT-d
Target Use	Mobile	Performance Laptop