Athlon II X4 620e vs Atom Z3735G

Athlon II X4 620e vs Atom Z3735G Performance Spectrum

Athlon II X4 620e

4 / 4

2,906

+0.5%

Ryzen Threadripper 3990X

Atom Z3735G

4 / 4

2,891

0.0%

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.

Athlon II X4 620e vs Atom Z3735G 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.

Athlon II X4 620e vs Atom Z3735G: Pros, Cons & Final Verdict

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

Athlon II X4 620e

2011

Why buy it

✅Better for gaming: +4.0% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌Lower PassMark per dollar, at 29.4 vs 170.1 PassMark/$ ($99 MSRP vs $17 MSRP).
❌2150% higher power demand at 45W vs 2W.
❌No integrated graphics, while Atom Z3735G can still boot and troubleshoot without a discrete GPU.

Atom Z3735G

2014

Why buy it

✅Costs $82 less on MSRP ($17 MSRP vs $99 MSRP).
✅Delivers 479.3% more PassMark for each dollar spent, at 170.1 vs 29.4 PassMark/$ ($17 MSRP vs $99 MSRP).
✅Draws 2W instead of 45W, a 43W reduction.
✅Integrated graphics onboard with Intel HD Graphics (Bay Trail), while Athlon II X4 620e needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Athlon II X4 620e across 50 shared CPU benchmark tests.
❌Lower PassMark (2,891 vs 2,906).

Quick Answers

So, is Athlon II X4 620e better than Atom Z3735G?

Yes. Athlon II X4 620e is the better all-around CPU here. It gives you a 4.0% average FPS lead across 50 shared CPU game tests in our data and 0.5% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Athlon II X4 620e is the better pick. According to our tests, it delivers 4.0% 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, Athlon II X4 620e is the stronger fit. You are getting 0.5% better PassMark, backed by 4 cores and 4 threads.

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

Athlon II X4 620e is still the much better call for a fresh build. Athlon II X4 620e comes in 482.4% more expensive on MSRP at $99 MSRP versus $17 MSRP, and it still gives you a 4.0% average FPS lead across 50 shared CPU game tests in our data. Atom Z3735G only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2014 platform. Even with 479.3% better value on paper (170.1 vs 29.4 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on UTFCBGA592.

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

Athlon II X4 620e vs Atom Z3735G Technical Specifications

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

Athlon II X4 620e

The Athlon II X4 620e is manufactured by AMD. It was released in 2009-01-01. It is based on the Propus (2009−2011) architecture. It features 4 cores and 4 threads. Base frequency is 2.6 GHz, with boost up to 2.6 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 45 Watt. Memory support: DDR3. Passmark benchmark score: 2,906 points. Launch price was $149.

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.

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Processing Power

Both the Athlon II X4 620e and Atom Z3735G share an identical 4-core/4-thread configuration. Boost clocks reach 2.6 GHz on the Athlon II X4 620e versus 1.83 GHz on the Atom Z3735G — a 34.8% clock advantage for the Athlon II X4 620e (base: 2.6 GHz vs 1.33 GHz). The Athlon II X4 620e uses the Propus (2009−2011) architecture (45 nm), while the Atom Z3735G uses Bay Trail-T (2013−2014) (22 nm). In PassMark, the Athlon II X4 620e scores 2,906 against the Atom Z3735G's 2,891 — a 0.5% lead for the Athlon II X4 620e. L3 cache: 0 kB on the Athlon II X4 620e vs 2 MB L2 Cache on the Atom Z3735G.

Feature	Athlon II X4 620e	Atom Z3735G
Cores / Threads	4 / 4	4 / 4
Boost Clock	2.6 GHz+42%	1.83 GHz
Base Clock	2.6 GHz+95%	1.33 GHz
L3 Cache	0 kB	2 MB L2 Cache
L2 Cache	512 kB (per core)	2 MB+300%
Process	45 nm	22 nm-51%
Architecture	Propus (2009−2011)	Bay Trail-T (2013−2014)
PassMark	2,906	2,891

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Memory & Platform

The Athlon II X4 620e uses the AM3 socket (PCIe 2.0), while the Atom Z3735G uses UTFCBGA592 (PCIe 2.0) — making them incompatible on the same motherboard. Both support up to DDR3-1333 memory speed. The Athlon II X4 620e supports up to 32 GB of RAM compared to 1 GB — 3100% more capacity for professional workloads. Memory channels: 2 (Athlon II X4 620e) vs 1 (Atom Z3735G). Both provide 0 PCIe lanes. Chipset compatibility: AMD AM3 (Athlon II X4 620e) and Intel FC-UTBGA592 (Atom Z3735G).

Feature	Athlon II X4 620e	Atom Z3735G
Socket	AM3	UTFCBGA592
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	DDR3-1333	DDR3L-RS 1333
Max RAM Capacity	32 GB+3100%	1 GB
RAM Channels	2+100%	1
ECC Support	No	No
PCIe Lanes	0	0

🔧

Advanced Features

The Atom Z3735G includes integrated graphics (Intel HD Graphics (Bay Trail)), while the Athlon II X4 620e requires a dedicated GPU.

Feature	Athlon II X4 620e	Atom Z3735G
Integrated GPU	No	Yes
IGPU Model	—	Intel HD Graphics (Bay Trail)

💰

Value Analysis

At launch, the Athlon II X4 620e was priced at $99, while the Atom Z3735G came in at $17. On launch pricing ($99 vs $17), Atom Z3735G was $82 cheaper. In terms of value on MSRP (PassMark points per dollar), the Athlon II X4 620e delivers 29.4 pts/$ vs 170.1 pts/$ for the Atom Z3735G — making the Atom Z3735G the 141.1% better value option.

Feature	Athlon II X4 620e	Atom Z3735G
MSRP	$99	$17-83%
Performance per Dollar	29.4	170.1+479%
Release Date	2011	2014

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