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Arctic Silver 5 High Density Polysynthetic Silver Thermal Compound -12g (AS5-12G-R)
Arctic Tumblers

Arctic Silver 5 High Density Polysynthetic Silver Thermal Compound -12g (AS5-12G-R)

Bottom line: The Arctic Silver 5 High Density Polysynthetic Silver Thermal Compound ($44.97 on Amazon as of 2026-10-06): Made with 99.9% pure silver for strong thermal transfer; main trade-off: silver-based paste is capacitive; keep off pins and contacts.

$44.97

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Buy on Amazon — $44.97 Compare to similar retro cpu coolers & fans

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Made with 99.9% pure silver for strong thermal transfer
  • ✓ Three particle sizes boost chip-to-cooler contact area
  • ✓ Large 12g tube covers many CPU and GPU applications
  • ✓ Controlled triple-phase viscosity spreads evenly

Cons

  • ✗ Silver-based paste is capacitive; keep off pins and contacts
  • ✗ 12g far exceeds one build's needs; excess may sit unused
  • ✗ Dense compound demands a thin, careful application
  • ✗ No listed price; cost and availability vary by seller

Manufacturer description

Thermal compound is necessary to create a reliable transfer of heat from your computer's processor to its heatsink to keep your CPU from overheating. Arctic Silver 5 thermal compound does this with three unique shapes and sizes of pure silver particles to maximize particle-to-particle contact area and thermal transfer. It's optimized for use between modern high-power CPUs and high-performance heatsinks or water-cooling solutions. This 12-gram tube contains enough compound to cover at least 50 small CPU cores, or 20 large CPU cores, or 7 to 15 heat plates.

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SpecPicks Verdict

SpecPicks scored Arctic Silver 5 High Density Polysynthetic Silver Thermal Compound… using a rating × review-volume × price-fit model applied to published specs and reviews across the retro cpu coolers & fans category. Arctic Tumblers's retro cpu coolers & fans lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for retro cpu coolers & fans of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • The Arctic Silver 5 uses three unique shapes and sizes of pure silver particles to maximize particle-to-particle contact area and thermal transfer
  • Made With 99.9% Pure Silver
  • Controlled Triple-Phase Viscosity
  • High-Density Polysynthetic Silver Thermal Compound

Full Specifications

BrandArctic Tumblers
ModelAS5-12G-R
Weight12g
Part NumberAS5-12G-R
Item Type NameArctic Silver
Number of Items1
Included ComponentsArctic Silver Compound
Item Dimensions L x W x H6"L x 3"W x 8"H
Global Trade Identification Number00800953173567

Ready to buy?

Arctic Silver 5 High Density Polysynthetic Silver Thermal Compound -12g (AS5-12G-R) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $44.97

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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Arctic Silver 5 High Density Polysynthetic Silver Thermal Compound -12g (AS5-12G-R)
$44.97
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