Pentium D 820 vs Turion II Neo K685

Pentium D 820 vs Turion II Neo K685 Performance Spectrum

Pentium D 820

2 / 2

1,412

0.0%

1,424

+0.8%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

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.

Pentium D 820 vs Turion II Neo K685 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 D 820 vs Turion II Neo K685: Pros, Cons & Final Verdict

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

Pentium D 820

2005

Why buy it

Trade-offs

❌Lower PassMark (1,412 vs 1,424).
❌Launch MSRP is still $241 MSRP, while Turion II Neo K685 mostly shows up through inconsistent older-market listings.
❌100% higher power demand at 2W vs 1W.

Turion II Neo K685

2010

Why buy it

✅+0.8% higher PassMark.
✅Draws 1W instead of 2W, a 1W reduction.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Quick Answers

So, is Turion II Neo K685 better than Pentium D 820?

It depends on what you want from the system. For gaming, Pentium D 820 is ahead with a 2.3% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Turion II Neo K685 pulls ahead with 0.8% better PassMark.

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

For streaming, content creation, and heavier multitasking, Turion II Neo K685 is the stronger fit. You are getting 0.8% better PassMark, backed by 2 cores and 2 threads.

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

Turion II Neo K685 is still the much better call for a fresh build. Turion II Neo K685 comes in at an unclear MSRP at unclear MSRP versus $241 MSRP, and it still gives you 0.8% better PassMark. Pentium D 820 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2005 platform. Even with 100.0% better value on paper (5.9 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on LGA775.

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

Turion II Neo K685 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2010 vs 2005) and more multi-core headroom with 2 cores / 2 threads instead of 2/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Pentium D 820 vs Turion II Neo K685 Technical Specifications

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

Pentium D 820

The Pentium D 820 is manufactured by Intel. It was released in 2007-01-01. It is based on the NetBurst (2000−2006) architecture. It features 2 cores and 2 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 90 nm process technology. Socket: LGA775. Thermal design power (TDP): 95 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,412 points. Launch price was $69.

Turion II Neo K685

The Turion II Neo K685 is manufactured by AMD. It was released in 2007-01-01. It is based on the Geneva (2010) architecture. It features 2 cores and 2 threads. Max frequency: 1.8 GHz. L2 cache: 1 MB. Built on 45 nm process technology. Socket: S1g4. Thermal design power (TDP): 1 MB. Memory support: DDR3. Passmark benchmark score: 1,424 points. Launch price was $69.

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Processing Power

Both the Pentium D 820 and Turion II Neo K685 share an identical 2-core/2-thread configuration. Boost clocks reach 2.8 GHz on the Pentium D 820 versus 1.8 GHz on the Turion II Neo K685 — a 43.5% clock advantage for the Pentium D 820. The Pentium D 820 uses the NetBurst (2000−2006) architecture (90 nm), while the Turion II Neo K685 uses Geneva (2010) (45 nm). In PassMark, the Pentium D 820 scores 1,412 against the Turion II Neo K685's 1,424 — a 0.8% lead for the Turion II Neo K685.

Feature	Pentium D 820	Turion II Neo K685
Cores / Threads	2 / 2	2 / 2
Boost Clock	2.8 GHz+56%	1.8 GHz
Base Clock	2.8 GHz	—
L3 Cache	0 kB	—
L2 Cache	2 MB+100%	1 MB
Process	90 nm	45 nm-50%
Architecture	NetBurst (2000−2006)	Geneva (2010)
PassMark	1,412	1,424
Geekbench 6 Single	166	—

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Memory & Platform

The Pentium D 820 uses the LGA775 socket (PCIe 1.1), while the Turion II Neo K685 uses S1g4 (PCIe 2.0) — making them incompatible on the same motherboard.