Updated July 14, 2026 · 231 modules
OLOy leads on segment $/GB; OLOy leads on ratings. Buy live Amazon kits below — brand pages for the full catalogs.
OLOy
$6.47/GB
DDR4 32GB $/GB
OWC
$34.27/GB
DDR5 32GB $/GB
Premium today
OWC +430%
vs OLOy
Best buyable DDR4 and DDR5 kits by $/GB (dual-stick preferred)
OWC
OWC 128GB (8x16GB) DDR5 5600 PC5-44800 CL46 1Rx8 288-pin 1.1V ECC Registered RDIMM Memory RAM Module Upgrade Kit for Select Workstations or Servers$395.00
Verify on Amazon.com before purchasing — checkout price applies.OLOy
OLOy DDR4 RAM 32GB (2x16GB) 2400 MHz CL17 1.2V 260-Pin Laptop Gaming SODIMM for Intel (MD4S162417IZDC)$187.99
Verify on Amazon.com before purchasing — checkout price applies.OWC
OWC 128GB (4 x 32GB) DDR4 ECC Registerd CL21 PC4-21300 2666MHz SDRAM Memory Ram Upgrade Module Compatible with 2019 Mac Pro 7,1 and 2017 iMac Pro 1,1 (OWC2666R3M128)$262.22
Verify on Amazon.com before purchasing — checkout price applies.Disclosure: As an Amazon Associate I earn from qualifying purchases. Rankings use price and spec data only — not paid placement. How we rank products
OLOy leads today on both segment $/GB and ratings across 43 modules.
Segment medians preferred for $/GB (not raw catalog averages). Updated July 14, 2026.
Highest rating × review volume — for buyers comparing reliability, not just lowest price
OLOy
OLOy DDR4 RAM 16GB (2x8GB) Black Owl 3600 MHz CL18 1.35V 288-Pin Desktop Gaming UDIMM (MD4U0836180BJ0DA)
$129.99
OWC
OWC 32GB (4 x 8GB) PC12800 DDR3L 1600MHz SO-DIMMs Memory Compatible with 2011-2015 iMac Models (OWC1600DDR3S32S)
$148.39
Choose OLOy if…
Choose OWC if…
Price per GB by capacity
Apples-to-apples at each capacity tier
| Capacity | OLOy | OWC |
|---|---|---|
| 8GB | $6.50/GB | $7.89/GB |
| 16GB | $7.79/GB | $11.38/GB |
| 32GB | $6.25/GB | $14.47/GB |
| 64GB | $6.41/GB | $15.90/GB |
| 128GB | — | $14.04/GB |
Capacity coverage
How many SKUs at each capacity
| Capacity | OLOy | OWC |
|---|---|---|
| 4GB | — | 3 |
| 8GB | 1 | 10 |
| 16GB | 32 | 37 |
| 32GB | 9 | 39 |
| 64GB | 1 | 36 |
| 128GB | — | 35 |
| 256GB | — | 23 |
| 512GB | — | 5 |
Speed mix & form factors
Where each brand concentrates its lineup
OLOy speeds
OWC speeds
OLOy DDR / form
OWC DDR / form
Answers use live segment pricing and catalog counts — updated July 14, 2026.
OLOy leads on DDR4 32GB $/GB at $6.47/GB vs OWC at $34.27/GB (updated July 14, 2026).
OLOy averages 4.5★ across 43 tracked modules (6 rated 4.7★+). For most buyers, prioritise dual-stick kits with the right speed for your platform — see the Amazon picks and OLOy brand page.
OWC averages 4.4★ across 188 tracked modules (43 rated 4.7★+). Compare the most-trusted picks below and browse the OWC brand page for the full lineup.
For value, start with OLOy on segment $/GB today. For reliability, compare average ratings (OLOy 4.5★ vs OWC 4.4★) and the most-trusted kits on this page. Buy the Amazon kit that matches your capacity and platform.
OLOy averages 4.5★ vs OWC's 4.4★ across their product ranges.
OWC offers more variety with 188 tracked modules vs OLOy's 43.
Both brands offer DDR4 and DDR5 modules in DIMM and SO-DIMM form factors. Compatibility depends on memory type and speed — not the brand. Check your motherboard QVL before buying.
For gaming, prioritise DDR5-6000 CL30 (AMD AM5) or DDR5-5600–6400 (Intel). OLOy currently leads on segment $/GB — buy a dual-stick kit from the Amazon picks above.
OLOy has 8 SO-DIMM modules tracked; OWC has 55. Browse OLOy or OWC brand pages, or use the RAM Finder for laptop upgrades.