Updated July 14, 2026 · 291 modules
SK Hynix leads on segment $/GB. Buy live Amazon kits below — brand pages for the full catalogs.
OWC
$34.27/GB
DDR5 32GB $/GB
SK Hynix
$5.15/GB
DDR4 32GB $/GB
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OWC +565%
vs SK Hynix
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.SK Hynix
KLEVV CRAS V RGB DDR5 64GB (2x32GB) 6000MHz CL30 SK Hynix A-Die 1.35V Gaming Desktop Ram Memory XMP 3.0 / AMD Expo Ready - Black (KD5BGUA80-60A300G)$872.99
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.SK Hynix
SK HYNIX 16GB 2X8GB DDR4 PC4-19200 2400MHZ 1RX8 CL17 Memory KIT HMA81GS6MFR8N-UH$125.72
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
SK Hynix is the budget pick on segment $/GB; OWC may win on ratings or selection.
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
OWC
OWC 32GB (4 x 8GB) PC12800 DDR3L 1600MHz SO-DIMMs Memory Compatible with 2011-2015 iMac Models (OWC1600DDR3S32S)
$148.39
SK Hynix
Hynix 8GB PC4-21300 DDR4-2666MHz 260-Pin SODIMM 1.2V Single Rank Memory Module HMA81GS6CJR8N-VK
$56.90
Choose OWC if…
Choose SK Hynix if…
Price per GB by capacity
Apples-to-apples at each capacity tier
| Capacity | OWC | SK Hynix |
|---|---|---|
| 8GB | $7.89/GB | $6.35/GB |
| 16GB | $11.38/GB | $6.76/GB |
| 32GB | $14.47/GB | $5.83/GB |
| 64GB | $15.90/GB | $7.50/GB |
| 128GB | $14.04/GB | — |
Capacity coverage
How many SKUs at each capacity
| Capacity | OWC | SK Hynix |
|---|---|---|
| 1GB | — | 1 |
| 2GB | — | 4 |
| 4GB | 3 | 16 |
| 8GB | 10 | 27 |
| 16GB | 37 | 34 |
| 32GB | 39 | 16 |
| 64GB | 36 | 5 |
| 128GB | 35 | — |
| 256GB | 23 | — |
| 512GB | 5 | — |
Speed mix & form factors
Where each brand concentrates its lineup
OWC speeds
SK Hynix speeds
OWC DDR / form
SK Hynix DDR / form
Answers use live segment pricing and catalog counts — updated July 14, 2026.
SK Hynix leads on DDR4 32GB $/GB at $5.15/GB vs OWC at $34.27/GB (updated July 14, 2026).
OWC averages 4.4★ across 188 tracked modules (43 rated 4.7★+). For most buyers, prioritise dual-stick kits with the right speed for your platform — see the Amazon picks and OWC brand page.
SK Hynix averages 4.4★ across 103 tracked modules (36 rated 4.7★+). Compare the most-trusted picks below and browse the SK Hynix brand page for the full lineup.
For value, start with SK Hynix on segment $/GB today. For reliability, compare average ratings (OWC 4.4★ vs SK Hynix 4.4★) and the most-trusted kits on this page. Buy the Amazon kit that matches your capacity and platform.
OWC and SK Hynix have similar average customer ratings.
OWC offers more variety with 188 tracked modules vs SK Hynix's 103.
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). SK Hynix currently leads on segment $/GB — buy a dual-stick kit from the Amazon picks above.
OWC has 55 SO-DIMM modules tracked; SK Hynix has 35. Browse OWC or SK Hynix brand pages, or use the RAM Finder for laptop upgrades.