Pentium 1403 vs Ryzen 7 5800X

Pentium 1403 vs Ryzen 7 5800X Performance Spectrum

Pentium 1403

2 / 2

1,851

0.0%

27,712

+1397.1%

Ryzen Threadripper 3990X

Ryzen Threadripper PRO 9965WX

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 1403 vs Ryzen 7 5800X 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 1403 vs Ryzen 7 5800X: Pros, Cons & Final Verdict

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

Pentium 1403

2012

Why buy it

✅Draws 80W instead of 105W, a 25W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 5800X across 50 shared CPU benchmark tests.
❌Lower PassMark (1,851 vs 27,712).
❌Smaller total L3 cache (5 MB vs 32 MB).

Ryzen 7 5800X

2020

Why buy it

✅Better for gaming: +448.0% higher average FPS across 50 shared CPU benchmark tests.
✅+540% larger total L3 cache (32 MB vs 5 MB).
✅100+% more PCIe lanes (24 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Launch MSRP is still $449 MSRP, while Pentium 1403 mostly shows up through inconsistent older-market listings.
❌31.3% higher power demand at 105W vs 80W.

Quick Answers

So, is Ryzen 7 5800X better than Pentium 1403?

Yes. Ryzen 7 5800X is the better all-around CPU here. It gives you a 448.0% average FPS lead across 50 shared CPU game tests in our data, 1397.1% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Ryzen 7 5800X is the better pick. According to our tests, it delivers 448.0% 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, Ryzen 7 5800X is the stronger fit. You are getting 1397.1% better PassMark, backed by 8 cores and 16 threads. It also has the larger cache pool with 540% larger total L3 cache (32 MB vs 5 MB).

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

Ryzen 7 5800X is the better buy right now. Ryzen 7 5800X comes in at an unclear MSRP at $449 MSRP versus unclear MSRP, and it still gives you a 448.0% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (61.7 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Ryzen 7 5800X makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2012), 540% larger total L3 cache (32 MB vs 5 MB), and more multi-core headroom with 8 cores / 16 threads instead of 2/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Pentium 1403 vs Ryzen 7 5800X Technical Specifications

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

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.

Ryzen 7 5800X

The Ryzen 7 5800X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen 3) (2020−2022) architecture. It features 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 4.7 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4. Passmark benchmark score: 27,712 points. Launch price was $449.

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Processing Power

The Pentium 1403 packs 2 cores / 2 threads, while the Ryzen 7 5800X offers 8 cores / 16 threads — the Ryzen 7 5800X has 6 more cores. The Ryzen 7 5800X is built on the Vermeer (Zen 3) (2020−2022) architecture. In PassMark, the Pentium 1403 scores 1,851 against the Ryzen 7 5800X's 27,712 — a 175% lead for the Ryzen 7 5800X. L3 cache: 5 MB on the Pentium 1403 vs 32 MB on the Ryzen 7 5800X.

Feature	Pentium 1403	Ryzen 7 5800X
Cores / Threads	2 / 2	8 / 16+300%
Boost Clock	—	4.7 GHz
Base Clock	2.6 GHz	3.8 GHz+46%
L3 Cache	5 MB	32 MB+540%
L2 Cache	—	512K (per core)
Process	32 nm	7 nm, 12 nm-78%
Architecture	—	Vermeer (Zen 3) (2020−2022)
PassMark	1,851	27,712+1397%