Atom Z3735G vs Phenom II X2 X640 BE

Atom Z3735G vs Phenom II X2 X640 BE Performance Spectrum

Atom Z3735G

4 / 4

2,891

+1.8%

2,839

0.0%

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.

Atom Z3735G vs Phenom II X2 X640 BE 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.

Atom Z3735G vs Phenom II X2 X640 BE: Pros, Cons & Final Verdict

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

Atom Z3735G

2014

Why buy it

✅+1.8% higher PassMark.
✅Integrated graphics onboard with Intel HD Graphics (Bay Trail), while Phenom II X2 X640 BE needs a discrete GPU.

Trade-offs

❌Launch MSRP is still $17 MSRP, while Phenom II X2 X640 BE mostly shows up through inconsistent older-market listings.

Phenom II X2 X640 BE

2011

Why buy it

Trade-offs

❌Lower PassMark (2,839 vs 2,891).
❌No integrated graphics, while Atom Z3735G can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Atom Z3735G better than Phenom II X2 X640 BE?

It depends on what you want from the system. For gaming, Phenom II X2 X640 BE is ahead with a 1.3% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Atom Z3735G pulls ahead with 1.8% better PassMark.

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

For streaming, content creation, and heavier multitasking, Atom Z3735G is the stronger fit. You are getting 1.8% better PassMark, backed by 4 cores and 4 threads.

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

Atom Z3735G is the better buy right now. Atom Z3735G comes in at an unclear MSRP at $17 MSRP versus unclear MSRP, and it still gives you 1.8% better PassMark. The compromise is that Phenom II X2 X640 BE is still the better pure gaming CPU with a 1.3% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (170.1 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Atom Z3735G makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2014 vs 2011) and more multi-core headroom with 4 cores / 4 threads instead of 2/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Atom Z3735G vs Phenom II X2 X640 BE Technical Specifications

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

Atom Z3735G

The Atom Z3735G is manufactured by Intel. It was released in 9 April 2014 (11 years ago). It is based on the Bay Trail-T (2013−2014) architecture. It features 4 cores and 4 threads. Base frequency is 1.33 GHz, with boost up to 1.83 GHz. L3 cache: 2 MB L2 Cache. L2 cache: 2 MB. Built on 22 nm process technology. Socket: UTFCBGA592. Thermal design power (TDP): 2 Watt. Memory support: DDR3. Passmark benchmark score: 2,891 points. Launch price was $17.

Phenom II X2 X640 BE

The Phenom II X2 X640 BE is manufactured by AMD. It was released in 2009-01-01. It is based on the Champlain (2010−2011) architecture. It features 2 cores and 2 threads. Max frequency: 3.2 GHz. L2 cache: 2 MB. Built on 45 nm process technology. Socket: S1. Thermal design power (TDP): 2 MB. Memory support: DDR3. Passmark benchmark score: 2,839 points. Launch price was $149.

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Processing Power

The Atom Z3735G packs 4 cores / 4 threads, while the Phenom II X2 X640 BE offers 2 cores / 2 threads — the Atom Z3735G has 2 more cores. Boost clocks reach 1.83 GHz on the Atom Z3735G versus 3.2 GHz on the Phenom II X2 X640 BE — a 54.5% clock advantage for the Phenom II X2 X640 BE. The Atom Z3735G uses the Bay Trail-T (2013−2014) architecture (22 nm), while the Phenom II X2 X640 BE uses Champlain (2010−2011) (45 nm). In PassMark, the Atom Z3735G scores 2,891 against the Phenom II X2 X640 BE's 2,839 — a 1.8% lead for the Atom Z3735G.

Feature	Atom Z3735G	Phenom II X2 X640 BE
Cores / Threads	4 / 4+100%	2 / 2
Boost Clock	1.83 GHz	3.2 GHz+75%
Base Clock	1.33 GHz	—
L3 Cache	2 MB L2 Cache	—
L2 Cache	2 MB	2 MB
Process	22 nm-51%	45 nm
Architecture	Bay Trail-T (2013−2014)	Champlain (2010−2011)
PassMark	2,891+2%	2,839

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Memory & Platform

The Atom Z3735G uses the UTFCBGA592 socket (PCIe 2.0), while the Phenom II X2 X640 BE uses S1 (PCIe 2.0) — making them incompatible on the same motherboard.