Pentium 3805U vs Pentium E5800

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.

Pentium 3805U vs Pentium E5800 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.

Pentium 3805U vs Pentium E5800: Pros, Cons & Final Verdict

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

Pentium 3805U

2015

Why buy it

✅+0.5% higher PassMark.
✅100+% more PCIe lanes (12 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with HD Graphics (Broadwell), while Pentium E5800 needs a discrete GPU.

Trade-offs

❌687.7% higher power demand at 512W vs 65W.

Pentium E5800

2010

Why buy it

✅Draws 65W instead of 512W, a 447W reduction.

Trade-offs

❌Lower PassMark (1,190 vs 1,196).
❌Launch MSRP is still $64 MSRP, while Pentium 3805U mostly shows up through inconsistent older-market listings.
❌No integrated graphics, while Pentium 3805U can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Pentium E5800 better than Pentium 3805U?

It depends on what you want from the system. For gaming, Pentium E5800 is ahead with a 1.9% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Pentium 3805U pulls ahead with 0.5% better PassMark.

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

For streaming, content creation, and heavier multitasking, Pentium 3805U is the stronger fit. You are getting 0.5% better PassMark, backed by 2 cores and 2 threads.

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

Pentium E5800 is the better buy right now. Pentium E5800 comes in at an unclear MSRP at $64 MSRP versus unclear MSRP, and it still gives you a 1.9% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Pentium 3805U is still stronger for heavier multi-core work with 0.5% better PassMark. It is also 100.0% better value on MSRP (18.6 vs 0.0 PassMark/$), 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 3805U 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 / 2 threads instead of 2/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Pentium 3805U vs Pentium E5800 Technical Specifications

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

Pentium 3805U

The Pentium 3805U 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 2 threads. Base frequency is 1.9 GHz, with boost up to 1.9 GHz. L3 cache: 2 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: 1,196 points. Launch price was $161.

Pentium E5800

The Pentium E5800 is manufactured by Intel. It was released in 28 November 2010 (15 years ago). It is based on the Wolfdale (2008−2010) architecture. It features 2 cores and 2 threads. Base frequency is 3.2 GHz, with boost up to 3.2 GHz. L3 cache: 0 kB. L2 cache: 2 MB (total). Built on 45 nm process technology. Socket: LGA775. Thermal design power (TDP): 65 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,190 points. Launch price was $68.

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Processing Power

Both the Pentium 3805U and Pentium E5800 share an identical 2-core/2-thread configuration. Boost clocks reach 1.9 GHz on the Pentium 3805U versus 3.2 GHz on the Pentium E5800 — a 51% clock advantage for the Pentium E5800 (base: 1.9 GHz vs 3.2 GHz). The Pentium 3805U uses the Broadwell-U (2015) architecture (14 nm), while the Pentium E5800 uses Wolfdale (2008−2010) (45 nm). In PassMark, the Pentium 3805U scores 1,196 against the Pentium E5800's 1,190 — a 0.5% lead for the Pentium 3805U. L3 cache: 2 MB (total) on the Pentium 3805U vs 0 kB on the Pentium E5800.

Feature	Pentium 3805U	Pentium E5800
Cores / Threads	2 / 2	2 / 2
Boost Clock	1.9 GHz	3.2 GHz+68%
Base Clock	1.9 GHz	3.2 GHz+68%
L3 Cache	2 MB (total)	0 kB
L2 Cache	256K (per core)+12700%	2 MB (total)
Process	14 nm-69%	45 nm
Architecture	Broadwell-U (2015)	Wolfdale (2008−2010)
PassMark	1,196	1,190

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Memory & Platform

The Pentium 3805U uses the FCBGA1168 socket (PCIe 3.0), while the Pentium E5800 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard.

Feature	Pentium 3805U	Pentium E5800
Socket	FCBGA1168	LGA775
PCIe Generation	PCIe 3.0+173%	PCIe 1.1
Max RAM Speed	DDR3L-1600	—
Max RAM Capacity	16 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	12	—

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Advanced Features

Virtualization: VT-x, VT-d (Pentium 3805U) / not specified (Pentium E5800). The Pentium 3805U includes integrated graphics (HD Graphics (Broadwell)), while the Pentium E5800 requires a dedicated GPU. Primary use case: Pentium 3805U targets Mobile.