4 GB RAM: Cheapest by Price per GB
4 GB is a small module size, mostly sold today as a replacement or top-up stick for older desktops, laptops and servers. This page ranks the 25 single 4 GB RAM modules we track by price per GB, from $6.25 up to a $9.75 per GB median. Every 4 GB listing we track is DDR4, and the price per GB is higher than for larger modules like $9.24 per GB at 16 GB, because small sticks are low-volume products. We list no DDR3 or older modules.
- 25listings
- $6.25/GBcheapest
- $9.75/GBmedian
- 3,200 MT/sfastest rated
Best value picks
Cheapest per GB among named brands.
- 1$6.25/GBSamsung 4GB DDR4 SODIMM RAM Module 3200MHz 1Rx16 PC4-3200AA 260-Pin SDRAM Laptop M...View on Amazon4 GB$24.98Single stick
- 2$6.25/GBMICRON 4GB DDR4 3200MHz PC4-25600 1.2V 1R x 16 SODIMM Laptop RAM Memory Module MTA...View on Amazon4 GB$24.98Single stick
- 3$6.32/GBA-Tech 4GB DDR4 2666MHz PC4-21300 ECC RDIMM 1Rx8 Single Rank 1.2V ECC Registered D...View on Amazon4 GB$25.29Single stick
Find your RAM
25 listingsMore filters & columns
Price charts
Value map: speed against price
Each dot is one listing; 1 is off the chart (priced above $20.00/GB). 25 of 25 listings state a speed. Among listings at or above the median speed (2,666 MT/s), the cheapest is Samsung 4GB DDR4 SODIMM RAM Module 3200MHz 1Rx16 PC4-3200AA 260-Pin SDRAM Lap... at $6.25/GB.
How prices are spread
Half of the 25 listings cost between $7.45 and $11.49 per GB; the median is $9.75. A listing in the left-hand bars is cheap for this category.
Median price per GB over time
All RAM: $11.56 to $11.49 per GB over 5 recorded days (−1%).
How to choose 4 GB RAM
What to look for
- Form factor: desktop DIMM, laptop SODIMM and server RDIMM are different shapes. Match the one your machine uses.
- Generation and speed: this page lists DDR4 only. Check whether your board wants 2133, 2400, 2666 or 3200 MT/s.
- ECC: server modules marked ECC or RDIMM need a board that supports them. They are not a drop-in for a normal desktop.
- Part numbers: many listings are replacement parts for a named model. Compare the part number with your manufacturer's list.
Best for
Shoppers pricing a 4 GB top-up or replacement stick for an older machine by the money per GB.
Skip it if
You are building or upgrading a current PC. Larger modules cost much less per GB; see the 8 GB and 16 GB pages.
4 GB price snapshot
Most listed brands
| Brand | Listings | Cheapest | Median |
|---|---|---|---|
| A-Tech | 7 | $6.32 | $9.59 |
| Samsung | 5 | $6.25 | $7.50 |
| SK hynix | 5 | $6.75 | $9.90 |
| Micron | 3 | $6.25 | $9.75 |
Quick facts
- Middle 80% of prices: $6.32 to $14.27 per GB
- Typical listing: 4 GB for $38.99
- 7 brands with listings here
- Median stated speed: 2,666 MT/s (25 listings state one)
- Median stated CAS latency: CL22 (6 listings state one)
- 24% are ECC
How 4 GB compares
| Category | Listings | Cheapest | Median | vs 4 GB |
|---|---|---|---|---|
| 4 GB (this page) | 25 | $6.25 | $9.75 | — |
| 32 GB | 1346 | $4.96 | $13.50 | +38% |
| 16 GB | 1063 | $3.62 | $9.24 | −5% |
| 64 GB | 523 | $5.02 | $17.81 | +83% |
| DDR5 | 1670 | $9.38 | $19.06 | +96% |
| DDR4 | 2161 | $3.62 | $8.04 | −18% |
| All RAM | 3,831 | $3.62 | $11.49 | +18% |
Median price per GB across current listings. "vs" shows each row's median against 4 GB.
Frequently asked questions
Is 4 GB of RAM enough?
For light tasks such as web browsing and documents on a lightweight operating system it can work, but current Windows and macOS releases and many browser tabs often use more. Check the memory the operating system and your main programs list as a minimum.
Can I buy 4GB RAM for a PC today?
Yes. We list 25 single 4 GB DDR4 modules, made up of desktop, laptop SODIMM and server modules, with a median of $9.75 per GB. Check the generation and form factor of your own machine first.
Is 4GB RAM per GB cheaper than 8 GB?
Usually not. Small modules are low-volume products, so the price per GB is higher than at 8 GB or 16 GB. Compare this page with $9.59 per GB for 8 GB modules.
How much does 4 GB RAM cost per GB?
Across 25 listings, the middle 80% range from about $6.32 to $14.27 per GB, with a median of $9.75. Prices change often, so check the current price on Amazon before you buy.
What is the cheapest of the 4 GB RAM per GB right now?
At the last update it is Samsung 4GB DDR4 SODIMM RAM Module 3200MHz 1Rx16 PC4-3200AA 260-Pin SDRAM Lap..., at $6.25 per GB. The cheapest listing is not always the best buy, so compare warranty, speed and reviews.