Pentium 3805U vs Phenom X3 8450e

Pentium 3805U vs Phenom X3 8450e Performance Spectrum

Pentium 3805U

2 / 2

1,196

0.0%

1,206

+0.8%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

About PassMark

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 Phenom X3 8450e 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 Phenom X3 8450e: 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

✅100+% more PCIe lanes (12 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with HD Graphics (Broadwell), while Phenom X3 8450e needs a discrete GPU.

Trade-offs

❌Lower PassMark (1,196 vs 1,206).
❌687.7% higher power demand at 512W vs 65W.

Phenom X3 8450e

2008

Why buy it

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

Trade-offs

❌No integrated graphics, while Pentium 3805U can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Phenom X3 8450e better than Pentium 3805U?

Yes. Phenom X3 8450e 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 0.8% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Phenom X3 8450e 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, Phenom X3 8450e is the stronger fit. You are getting 0.8% better PassMark, backed by 3 cores and 3 threads.

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

Phenom X3 8450e still makes the most sense overall. Phenom X3 8450e comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 0.3% average FPS lead across 50 shared CPU game tests in our data.

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 2008). That makes it the safer long-term bet.

Pentium 3805U vs Phenom X3 8450e 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.

Phenom X3 8450e

The Phenom X3 8450e is manufactured by AMD. It was released in 2009-01-01. It is based on the Toliman (2008) architecture. It features 3 cores and 3 threads. Max frequency: 2.1 GHz. L3 cache: 2 MB (total). L2 cache: 512 kB (per core). Built on 65 nm process technology. Socket: AM2+. Thermal design power (TDP): 65 Watt. Passmark benchmark score: 1,206 points. Launch price was $149.

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Processing Power

The Pentium 3805U packs 2 cores / 2 threads, while the Phenom X3 8450e offers 3 cores / 3 threads — the Phenom X3 8450e has 1 more core. Boost clocks reach 1.9 GHz on the Pentium 3805U versus 2.1 GHz on the Phenom X3 8450e — a 10% clock advantage for the Phenom X3 8450e. The Pentium 3805U uses the Broadwell-U (2015) architecture (14 nm), while the Phenom X3 8450e uses Toliman (2008) (65 nm). In PassMark, the Pentium 3805U scores 1,196 against the Phenom X3 8450e's 1,206 — a 0.8% lead for the Phenom X3 8450e. Both processors carry 2 MB (total) of L3 cache.

Feature	Pentium 3805U	Phenom X3 8450e
Cores / Threads	2 / 2	3 / 3+50%
Boost Clock	1.9 GHz	2.1 GHz+11%
Base Clock	1.9 GHz	—
L3 Cache	2 MB (total)	2 MB (total)
L2 Cache	256K (per core)	512 kB (per core)+100%
Process	14 nm-78%	65 nm
Architecture	Broadwell-U (2015)	Toliman (2008)
PassMark	1,196	1,206

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Memory & Platform

The Pentium 3805U uses the FCBGA1168 socket (PCIe 3.0), while the Phenom X3 8450e uses AM2+ (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Pentium 3805U	Phenom X3 8450e
Socket	FCBGA1168	AM2+
PCIe Generation	PCIe 3.0+50%	PCIe 2.0
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 (Phenom X3 8450e). The Pentium 3805U includes integrated graphics (HD Graphics (Broadwell)), while the Phenom X3 8450e requires a dedicated GPU. Primary use case: Pentium 3805U targets Mobile.