Pentium Gold G6505 vs Phenom II X3 P840

Pentium Gold G6505 vs Phenom II X3 P840 Performance Spectrum

Pentium Gold G6505

2 / 4

4,371

0.0%

4,425

+1.2%

Ryzen Threadripper PRO 7965WX

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 Gold G6505 vs Phenom II X3 P840 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 Gold G6505 vs Phenom II X3 P840: Pros, Cons & Final Verdict

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

Pentium Gold G6505

2021

Why buy it

✅Better for gaming: +3.3% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌Lower PassMark (4,371 vs 4,425).
❌3766.7% higher power demand at 58W vs 1.5W.

Phenom II X3 P840

2010

Why buy it

✅+1.2% higher PassMark.
✅Draws 2W instead of 58W, a 57W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Pentium Gold G6505 across 50 shared CPU benchmark tests.

Quick Answers

So, is Phenom II X3 P840 better than Pentium Gold G6505?

It depends on what you want from the system. For gaming, Pentium Gold G6505 is ahead with a 3.3% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Phenom II X3 P840 pulls ahead with 1.2% better PassMark.

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

For streaming, content creation, and heavier multitasking, Phenom II X3 P840 is the stronger fit. You are getting 1.2% better PassMark, backed by 3 cores and 3 threads.

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

Phenom II X3 P840 still makes the most sense overall. Phenom II X3 P840 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 1.2% better PassMark. That said, if you already own a compatible LGA1200 + DDR4 setup, Pentium Gold G6505 can still make sense as a platform-matched option because it avoids a motherboard and RAM swap.

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

Pentium Gold G6505 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2021 vs 2010). That makes it the safer long-term bet.

Pentium Gold G6505 vs Phenom II X3 P840 Technical Specifications

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

Pentium Gold G6505

The Pentium Gold G6505 is manufactured by Intel. It was released in 16 March 2021 (4 years ago). It is based on the Comet Lake-R (2021) architecture. It features 2 cores and 4 threads. Base frequency is 4.2 GHz, with boost up to 4.2 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 58 Watt. Memory support: DDR4-2666. Passmark benchmark score: 4,371 points. Launch price was $75.

Phenom II X3 P840

The Phenom II X3 P840 is manufactured by AMD. It was released in 2009-01-01. It is based on the Champlain (2010−2011) architecture. It features 3 cores and 3 threads. Max frequency: 1.9 GHz. L2 cache: 1.5 MB. Built on 45 nm process technology. Socket: S1. Thermal design power (TDP): 1.5 MB. Memory support: DDR3. Passmark benchmark score: 4,425 points. Launch price was $149.

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Processing Power

The Pentium Gold G6505 packs 2 cores / 4 threads, while the Phenom II X3 P840 offers 3 cores / 3 threads — the Phenom II X3 P840 has 1 more core. Boost clocks reach 4.2 GHz on the Pentium Gold G6505 versus 1.9 GHz on the Phenom II X3 P840 — a 75.4% clock advantage for the Pentium Gold G6505. The Pentium Gold G6505 uses the Comet Lake-R (2021) architecture (14 nm), while the Phenom II X3 P840 uses Champlain (2010−2011) (45 nm). In PassMark, the Pentium Gold G6505 scores 4,371 against the Phenom II X3 P840's 4,425 — a 1.2% lead for the Phenom II X3 P840.

Feature	Pentium Gold G6505	Phenom II X3 P840
Cores / Threads	2 / 4	3 / 3+50%
Boost Clock	4.2 GHz+121%	1.9 GHz
Base Clock	4.2 GHz	—
L3 Cache	4 MB (total)	—
L2 Cache	256 kB (per core)	1.5 MB+500%
Process	14 nm-69%	45 nm
Architecture	Comet Lake-R (2021)	Champlain (2010−2011)
PassMark	4,371	4,425+1%

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Memory & Platform

The Pentium Gold G6505 uses the LGA1200 socket (PCIe 3.0), while the Phenom II X3 P840 uses S1 (PCIe 2.0) — making them incompatible on the same motherboard.