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Enter any two safe-for-work communities. We’ll place their public descriptions, members, growth, topics and collected rule titles side by side — instantly, from data we already have.

r/buildapc vs r/pcmasterrace

Side-by-side using public descriptions, members, growth and rule titles from SubMouse. Missing fields show as n/a. Adult communities are excluded.

Swap sides New comparison Related to r/buildapc Related to r/pcmasterrace

PC enthusiast feed vs dedicated build-planning advice

r/pcmasterrace welcomes broad PC content—builds, support and enthusiast culture. r/buildapc is narrower: planning and advising custom PC assembly.

Both sit inside our live Top cut (pcmasterrace ~16.4M rank #56; buildapc ~8.5M rank #89). Activity samples are high for both (~352 vs ~203 posts/day). pcmasterrace’s related list includes pcgaming and hardware; buildapc’s related edges in our snapshot are noisier and less PC-specific.

Rules show the workflow split: buildapc bans build-spoonfeeding, laptop/prebuilt questions, hardware news/rumors, sales posts and dream-build memes. pcmasterrace focuses on etiquette, anonymizing screenshots, no affiliate links and limits on peasantry/low-effort posts—but remains a general PC room.

  • Use r/buildapc when you have a budget/parts list and want assembly advice (not a laptop shopping thread).
  • Use r/pcmasterrace for broader PC gaming/tech culture, showcases and general discussion.
  • Both have full SubMouse /r/ pages in the current Top 100.

Written comparison based on public descriptions and rule titles · updated 2026-11-06.

r/buildapc

/r/buildapc - Planning on building a computer but need some advice? This is the place to ask!

Planning on building a computer but need some advice? This is the place to ask! /r/buildapc is a community-driven subreddit dedicated to custom PC assembly. Anyone is welcome to seek the input of our helpful community a…

Members
8.5M
7-day growth
+1.9K
Posts/day
203
Directory rank
#89
Created
Apr 11, 2010
Submissions
Text posts

Sample mix: text posts 100%

Topics: Advice, Explanations & Q&A, PC Gaming

Rule titles (short names we collected)

  • Be respectful to others
  • No build-spoonfeeding requests
  • No piracy or grey-market software keys
  • No laptop or prebuilt PC questions
  • No submissions about hardware news, rumors, or reviews
  • No submissions about sales, deals or unauthorized giveaways
  • No submissions about retailer or customer service experiences
  • No titles that are all-caps, clickbait, PSAs, pro-tips or contain emoji.
  • No submissions that are low-effort, memes, jokes, meta, or hypothetical / dream builds.
  • No self-promotion, advertising or surveys
  • No selling, trading or requests for valuation
  • No excessive posting (more than one submission in 24 hours)

Open r/buildapc on SubMouse

About this community: r/buildapc ranks #89 on SubMouse’s SFW Top list (about 8.5 million subscribers in the directory). Catalogue framing: Planning on building a computer but need some advice? This is the place to ask! /r/buildapc is a community-driven subreddit dedicated to custom PC assembly. Anyone is welcome to seek the input of our helpful… Moderation themes that shape the room include: No build-spoonfeeding requests; No piracy or g…

r/pcmasterrace

PC Master Race - PCMR: A place where all enthusiasts of PC, PC gaming and PC technology are welcome!

Welcome to the official subreddit of the PC Master Race / PCMR! All PC-related content is welcome, including build help, tech support, and any doubt one might have about PC ownership. You don't necessarily need a PC to …

Members
16.4M
7-day growth
+7.9K
Posts/day
351.8
Directory rank
#56
Created
Apr 30, 2011
Submissions
Text or links

Sample mix: text posts 44%, images 30%, galleries 13%

Topics: Gaming, PC Gaming, Technology

Rule titles (short names we collected)

  • Harassment/calls to action against others
  • Follow PCMR Etiquette
  • Do not link to outside threads
  • Anonymize all images/screenshots
  • No referral or affiliate links
  • Low quality, unrelated, unoriginal or low-effort posts will be deleted at mod discretion.
  • Do not discriminate against others
  • No begging, trading, selling, or asking for valuation.
  • Peasantry posts must be self posts
  • Giveaway rules
  • Read our full rules here

Open r/pcmasterrace on SubMouse

About this community: r/pcmasterrace (#56, about 16.4 million) is the PC enthusiast community. Rules on file: Harassment/calls to action against others; Follow PCMR Etiquette; Do not link to outside threads; Anonymize all images/screenshots; No referral or affiliate links; Low quality, unrelated, unoriginal or low-effort posts will be deleted at mod discretion.; Do not discriminate against others; No begging, trading, selling, or asking …

Supported differences

Aspectr/buildapcr/pcmasterrace
Public focus (from each community’s public description) Planning on building a computer but need some advice? This is the place to ask! /r/buildapc is a community-driven subreddit dedicated to custom PC assembly. Anyone is welcome to seek the input of our helpful community a… Welcome to the official subreddit of the PC Master Race / PCMR! All PC-related content is welcome, including build help, tech support, and any doubt one might have about PC ownership. You don't necessarily need a PC to …
Size
r/pcmasterrace is larger in our directory (about 1.9×).
 8.5M members 16.4M members
Posting activity (our sample) 203/day 351.8/day
Common post types in our sample text posts 100% text posts 44%, images 30%, galleries 13%
Allowed submission type (meta) Text posts Text or links
Topic tags on SubMouse Advice, Explanations & Q&A, PC Gaming Gaming, PC Gaming, Technology
Selected rule titles (short names we collected) Be respectful to others; No build-spoonfeeding requests; No piracy or grey-market software keys; No laptop or prebuilt PC questions; No submissions about hardware news, rumors, or reviews Harassment/calls to action against others; Follow PCMR Etiquette; Do not link to outside threads; Anonymize all images/screenshots; No referral or affiliate links

What they share

  • Shared SubMouse topics: PC Gaming

Rule titles that matter for builders

r/buildapc collected titles include: be respectful; no build-spoonfeeding; no piracy/grey-market keys; no laptop or prebuilt questions; no hardware news/rumors/reviews; no sales/deals posts; no retailer experience threads; no all-caps/clickbait titles; no low-effort memes or dream builds; no self-promo; no selling/trading; no more than one submission per 24 hours. Text posts in our sample.

r/pcmasterrace: harassment bans; PCMR etiquette; do not link outside threads; anonymize screenshots; no referral links; low-effort removals; no begging/trading; peasantry as self posts; giveaway rules. Text or links in our sample.

Where this comparison comes from

Safe-for-work directory stats and collected short rule titles/activity samples for both communities. Short titles only — not full sidebar text.

Members and public descriptions come from SubMouse's safe-for-work directory (as of 2026-11-02 UTC); 7-day growth measured from 2026-10-26. Posts/day and post-type mixes appear when we have an activity sample. Rule lines are short titles, not the full sidebar. Directory rank is listing order — communities outside the current Top 100 open in the info tool instead of a full community page.

Comparisons we prepared

Hand-written explanations for pairs where the public descriptions and rules support a real distinction: