Updated July 14, 2026 · 319 modules
SK Hynix leads on segment $/GB; Samsung leads on ratings. Buy live Amazon kits below — brand pages for the full catalogs.
Samsung
$14.37/GB
DDR5 32GB $/GB
SK Hynix
$5.15/GB
DDR4 32GB $/GB
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Samsung +179%
vs SK Hynix
Best buyable DDR4 and DDR5 kits by $/GB (dual-stick preferred)
Samsung
Samsung 64GB (2x32GB) DDR5 4800MHz PC5-38400 SODIMM 2Rx8 Dual Rank CL40 1.1v 262pin Non-ECCM425R4GA3BB0-CQK Laptop Notebook RAM Memory Upgrade$710.00
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.Samsung
Samsung Memory Bundle with 128GB (4 x 32GB) DDR4 PC4-21300 2666MHz RDIMM (4 x M393A4K40CB2-CTD) Registered Server Memory$689.00
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; Samsung 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
Samsung
SAMSUNG M471A1K43CB1-CRC 8GB DDR4 2400MH Memory Module (8 GB, 1 x 8 GB, DDR4, 2400 MHz, 260-Pin SO-DIMM)
$59.75
SK Hynix
Hynix 8GB PC4-21300 DDR4-2666MHz 260-Pin SODIMM 1.2V Single Rank Memory Module HMA81GS6CJR8N-VK
$56.90
Choose Samsung if…
Choose SK Hynix if…
Price per GB by capacity
Apples-to-apples at each capacity tier
| Capacity | Samsung | SK Hynix |
|---|---|---|
| 8GB | $8.94/GB | $6.35/GB |
| 16GB | $9.80/GB | $6.76/GB |
| 32GB | $10.41/GB | $5.83/GB |
| 64GB | $11.78/GB | $7.50/GB |
| 128GB | $11.03/GB | — |
Capacity coverage
How many SKUs at each capacity
| Capacity | Samsung | SK Hynix |
|---|---|---|
| 1GB | — | 1 |
| 2GB | 1 | 4 |
| 4GB | 18 | 16 |
| 8GB | 61 | 27 |
| 16GB | 62 | 34 |
| 32GB | 45 | 16 |
| 64GB | 19 | 5 |
| 128GB | 6 | — |
| 256GB | 3 | — |
Speed mix & form factors
Where each brand concentrates its lineup
Samsung speeds
SK Hynix speeds
Samsung 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 Samsung at $14.37/GB (updated July 14, 2026).
Samsung averages 4.7★ across 216 tracked modules (93 rated 4.7★+). For most buyers, prioritise dual-stick kits with the right speed for your platform — see the Amazon picks and Samsung 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 (Samsung 4.7★ vs SK Hynix 4.4★) and the most-trusted kits on this page. Buy the Amazon kit that matches your capacity and platform.
Samsung averages 4.7★ vs SK Hynix's 4.4★ across their product ranges.
Samsung offers more variety with 216 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.
Samsung has 102 SO-DIMM modules tracked; SK Hynix has 35. Browse Samsung or SK Hynix brand pages, or use the RAM Finder for laptop upgrades.