Atom C3508 vs Pentium 1403

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 C3508 vs Pentium 1403 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 C3508 vs Pentium 1403: Pros, Cons & Final Verdict

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

Atom C3508

2017

Why buy it

✅+60% larger total L3 cache (8 MB vs 5 MB).
✅Draws 11W instead of 80W, a 69W reduction.
✅100+% more PCIe lanes (12 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (1,831 vs 1,851).

Pentium 1403

2012

Why buy it

Trade-offs

❌Smaller total L3 cache (5 MB vs 8 MB).
❌611.1% higher power demand at 80W vs 11.25W.

Quick Answers

So, is Pentium 1403 better than Atom C3508?

Yes. Pentium 1403 is the better all-around CPU here. It gives you a 0.4% average FPS lead across 50 shared CPU game tests in our data and 1.1% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Pentium 1403 is the better pick. According to our tests, it delivers 0.4% 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, Pentium 1403 is the stronger fit. You are getting 1.1% better PassMark, backed by 2 cores and 2 threads.

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

Pentium 1403 still makes the most sense overall. Pentium 1403 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 0.4% average FPS lead across 50 shared CPU game tests in our data.

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

Atom C3508 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2017 vs 2012) and 60% larger total L3 cache (8 MB vs 5 MB). That makes it the safer long-term bet.

Atom C3508 vs Pentium 1403 Technical Specifications

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

Atom C3508

The Atom C3508 is manufactured by Intel. It was released in 15 August 2017 (8 years ago). It is based on the Goldmont (2016−2017) architecture. It features 4 cores and 4 threads. Base frequency is 1.6 GHz, with boost up to 1.6 GHz. L3 cache: 8 MB. L2 cache: 8 MB. Built on 14 nm process technology. Socket: FCBGA1310. Thermal design power (TDP): 11.5 Watt. Memory support: DDR4: 1866. Passmark benchmark score: 1,831 points. Launch price was $69.

Pentium 1403

The Pentium 1403 is manufactured by Intel. It was released in 2007-01-01. It features 2 cores and 2 threads. Base frequency: 2.6 GHz. L3 cache: 5 MB. Built on 32 nm process technology. Thermal design power (TDP): 80 Watt. Memory support: DDR3-800, DDR3-1066. Passmark benchmark score: 1,851 points. Launch price was $69.

⚡

Processing Power

The Atom C3508 packs 4 cores / 4 threads, while the Pentium 1403 offers 2 cores / 2 threads — the Atom C3508 has 2 more cores. The Atom C3508 is built on the Goldmont (2016−2017) architecture. In PassMark, the Atom C3508 scores 1,831 against the Pentium 1403's 1,851 — a 1.1% lead for the Pentium 1403. L3 cache: 8 MB on the Atom C3508 vs 5 MB on the Pentium 1403.

Feature	Atom C3508	Pentium 1403
Cores / Threads	4 / 4+100%	2 / 2
Boost Clock	1.6 GHz	—
Base Clock	1.6 GHz	2.6 GHz+63%
L3 Cache	8 MB+60%	5 MB
L2 Cache	8 MB	—
Process	14 nm-56%	32 nm
Architecture	Goldmont (2016−2017)	—
PassMark	1,831	1,851+1%