Best RAM for Dell XPS 8930 & XPS 8940
Find the right DDR4 RAM for Dell XPS 8930 and XPS 8940, including the best capacities, speeds, and upgrade options for smoother performance
Is your Dell XPS starting to feel painfully slow whenever you open too many browser tabs, edit large files, or work on demanding projects? I know how frustrating it can be to have a capable desktop sitting on your desk but still see Windows struggle because the RAM is holding everything back.
When I looked into RAM upgrades for the Dell XPS 8930 and XPS 8940, I found that choosing memory is not simply about buying the highest MHz number or the biggest kit you can afford. You need the right DDR4 type, capacity, speed, and configuration for your specific XPS model. In this guide, I will show you which RAM options make the most sense, how much memory you actually need, and which mistakes I would avoid before spending money.
1. Crucial DDR4 Desktop RAM: Best Overall Choice
Crucial is the first brand I would check when upgrading an XPS 8930 or XPS 8940. What I like most is not just the reputation of the brand, but the availability of compatibility tools that can help you identify the correct memory for your exact computer. Crucial provides both an Upgrade Selector and a System Scanner designed to identify compatible memory and storage upgrades.
For someone who is unsure whether their XPS uses the correct RAM, this removes a lot of guesswork.
Key features:
- DDR4 desktop memory
- 288-pin DIMM design
- 1.2V DDR4 operation
- Available in different capacities
- Compatibility checking tools
- Designed for easier desktop upgrades
- Crucial memory is backed by a limited lifetime warranty on applicable products
Why I like it
I like Crucial because compatibility is more important than chasing impressive-looking specifications. If you select the exact XPS model through the compatibility tool, you have a much better starting point than simply searching Amazon for “fast DDR4 RAM.”
Why I dislike it
The biggest downside is that Crucial has many different DDR4 products. If you shop only by capacity and speed without checking compatibility, you can still choose the wrong module.
Buy it if: You want a straightforward, compatibility-focused upgrade.
Don’t buy it if: You are choosing RAM only because it has the highest advertised MHz number.
2. A-Tech DDR4–3200: Best XPS 8940 Alternative
A-Tech is another interesting option for the XPS 8940. Its current desktop range includes DDR4–3200 non-ECC UDIMM kits, including a 32GB kit made from two 16GB modules and larger configurations. The 32GB kit is listed as PC4–25600, CL22, 1.2V, 288-pin, non-ECC desktop memory.
This makes it particularly interesting if your XPS 8940 currently has 16GB and you want a clean move to 32GB.
Key features:
- DDR4–3200
- 288-pin desktop DIMM
- 1.2V
- Non-ECC
- CL22 on the listed 32GB kit
- 2 x 16GB configuration available
- Designed for desktop systems
One thing to remember is that buying DDR4–3200 does not guarantee that an XPS 8940 with an Intel i7/i9 will operate at 3200MHz. Dell specifies a 2933MHz limit for those processors.
Strengths
The 2 x 16GB configuration is attractive because it gives you 32GB while maintaining a dual-channel setup.
Weakness
Availability and pricing can change, so I would compare the current price with a compatible Crucial kit before ordering.
Buy it if: You want a 32GB upgrade for an XPS 8940.
3. Standard DDR4–2666 RAM: Best for XPS 8930
If you have an XPS 8930, I would not spend extra money chasing DDR4–3200 simply because the number looks better.
Dell’s official documentation specifies up to 2666MHz for XPS 8930 systems using i5, i7, and i7K processors, and supports up to 64GB total memory.
A reputable standard DDR4–2666 non-ECC UDIMM kit is therefore a sensible choice.
Key features to look for:
- DDR4
- 2666MHz
- 288-pin UDIMM
- Non-ECC
- 1.2V
- Matching capacity and specifications
- 16GB modules if you are targeting 64GB
Why I like this approach
It keeps the upgrade simple. Instead of paying for a speed your XPS 8930 may not use, you can put the money toward capacity.
For example, moving from 16GB to 32GB can make a noticeable difference when multitasking, while 64GB is more appropriate for heavier creative workloads.
4. OWC Memory: Consider Carefully
OWC sells memory upgrades for multiple Dell XPS desktop generations, including the XPS 8930 and XPS 8940.
However, this is where I would be particularly careful about the exact product listing. Not every 3200MHz OWC DIMM is appropriate for an XPS desktop. Some OWC listings are ECC or registered memory designed for workstations and servers rather than standard desktop UDIMM systems.
So I would not simply buy an OWC module because it says “DDR4–3200.”
Reason to buy: OWC has a dedicated Dell XPS memory selection.
Reason not to buy: You need to verify that the specific module is non-ECC, unbuffered, and compatible with your exact XPS configuration.
What RAM Does the Dell XPS 8930 and XPS 8940 Use?
Both desktops use DDR4 desktop UDIMM memory, not laptop SO-DIMMs or DDR5. They have four memory slots, which gives you several ways to increase capacity without replacing your entire computer.
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For the XPS 8930, Dell lists DDR4 memory with support of up to 2666MHz on i5, i7, and i7K processors, with up to 64GB total RAM using four 16GB modules.
The XPS 8940 is more flexible. Dell lists four UDIMM slots, DDR4 dual-channel memory, and configurations up to 128GB using four 32GB modules. Dell also states that the machine may ship with 3200MHz memory, but 10th-generation Intel i7/i9 processors limit the operating speed to 2933MHz.
That last point is important. A 3200MHz RAM kit can still be a sensible purchase for an XPS 8940, but don’t assume your i7 system will actually run it at 3200MHz.
Reworded AI Overview: What Is the Best RAM for XPS 8930 and XPS 8940?
The safest approach for these Dell desktops is to choose standard DDR4, non-ECC, unbuffered UDIMM memory running at 1.2V and match the specifications of your existing modules whenever possible. Crucial is one of the easiest choices because its compatibility tools let you identify memory designed for your exact system, while A-Tech offers DDR4 desktop kits in capacities such as 32GB and 64GB.
For the XPS 8930, stay within Dell’s supported 2666MHz configuration and 64GB maximum. For the XPS 8940, 3200MHz DDR4 modules are commonly available, but your actual speed depends on the processor, with Dell specifying up to 2933MHz for i7/i9 systems.
I would also avoid choosing RAM purely because it has large RGB heat spreaders or an aggressive gaming design. A normal-height desktop UDIMM with the correct specifications is a much safer fit for a Dell XPS system.
Quick Picks: Best RAM Options for Dell XPS
If you want to keep things simple, these are the options I would consider first:
- Best overall: Crucial compatible DDR4 desktop memory
- Best alternative: A-Tech DDR4–3200 UDIMM kits
- Best for XPS 8930: Standard DDR4–2666 memory from a reputable brand
- Best for XPS 8940: DDR4–3200 UDIMM, understanding that an i7/i9 system may operate it at 2933MHz
- Best capacity upgrade: 32GB for everyday heavy use, 64GB for demanding creative work, and up to 128GB on the XPS 8940 when your workload genuinely needs it
Now let’s look at each option more closely.
How Much RAM Should You Buy?
This is probably the biggest question.
If you use your XPS mainly for browsing, Office work, streaming, and normal multitasking, 16GB can still be usable.
If you regularly keep many applications open, edit photos, work with larger projects, or use demanding applications, 32GB is the sweet spot.
For 3D work, video editing, large creative projects, virtual machines, or other memory-heavy workloads, I would seriously consider 64GB.
The XPS 8930 officially supports up to 64GB. The XPS 8940 officially supports up to 128GB using four 32GB modules.
Can You Mix Different RAM Sticks?
Technically, mixed memory can sometimes work, but I would not make it my first choice.
Different capacities, speeds, ranks, brands, or timings can make troubleshooting more difficult. If you are upgrading an existing system, check your current RAM first through Windows Task Manager.
Press Ctrl + Shift + Esc, select Performance, and open Memory. You can see useful information about your current configuration before ordering anything.
My preference is to use a matched kit whenever possible. It gives you a cleaner upgrade path and reduces unnecessary compatibility headaches.
What About 3200MHz RAM?
This is where many buyers get confused.
A RAM kit advertised as DDR4–3200 does not mean every XPS system will run it at 3200MHz.
For the XPS 8930, Dell specifies up to 2666MHz for i5/i7/i7K configurations. For the XPS 8940, Dell states that 10th-gen i3/i5 processors are limited to 2666MHz while i7/i9 processors are limited to 2933MHz.
So if your XPS 8940 has an i7, don’t worry if a 3200MHz module operates at 2933MHz. That behavior is consistent with Dell’s specifications.
RAM Upgrade Mistakes I Would Avoid
Before ordering, I would check these five things:
- Confirm whether you have an XPS 8930 or XPS 8940.
- Check your processor because it affects supported memory speed.
- Buy desktop UDIMM memory, not laptop SO-DIMM.
- Match your existing RAM specifications if you are adding rather than replacing modules.
- Don’t assume every DDR4–3200 module is compatible just because it fits physically.
I would also avoid oversized RGB heat spreaders if your main goal is reliability rather than gaming aesthetics.
Where Should You Buy XPS RAM?
For an affiliate purchase, Amazon can be convenient because prices, shipping, stock, and return policies can change frequently. I recommend checking the exact model number before placing the order rather than choosing the cheapest listing.
I would also check Crucial’s compatibility tools before purchasing. If you find a compatible kit on Amazon, compare the current price, seller, shipping time, warranty, and return policy.
Sales can make a big difference with RAM, so I would not hesitate to compare two reputable brands before buying.
FAQs
Is 32GB enough for Dell XPS 8930 and XPS 8940?
For most demanding everyday workloads, yes. If you use creative applications, multitask heavily, or work with large projects, 32GB is a strong target.
Can XPS 8930 support 64GB RAM?
Yes. Dell’s official documentation lists 64GB as the maximum supported memory configuration, using four 16GB modules.
Can XPS 8940 support 128GB RAM?
Yes. Dell officially lists 128GB using four 32GB DDR4 UDIMMs.
Will 3200MHz RAM run at 3200MHz in XPS 8940?
Not necessarily. Dell specifies up to 2933MHz with 10th-generation Intel Core i7/i9 processors and 2666MHz with i3/i5 processors.
Should I buy one 32GB stick or two 16GB sticks?
For a 32GB target, I generally prefer 2 x 16GB when compatible with your existing configuration because it provides a dual-channel configuration. Dell lists 2 x 16GB as a supported dual-channel configuration for the XPS 8940.
Final Verdict
After looking closely at the specifications and the real upgrade concerns owners face, I would keep the decision simple.
For the Dell XPS 8930, choose reliable DDR4–2666 desktop UDIMM memory and target 32GB or 64GB, depending on your workload. Dell officially supports up to 64GB.
For the Dell XPS 8940, I would look first at a compatible Crucial or A-Tech DDR4 kit. A 32GB 2 x 16GB kit is a great middle ground, while 64GB makes more sense for serious creative work. If your workload genuinely requires it, the XPS 8940 officially supports up to 128GB.
Most importantly, don’t buy RAM based only on the advertised speed. Check your exact XPS model, processor, current memory, capacity, and compatibility first. In my experience, getting the right RAM is much more valuable than simply getting the fastest-looking RAM on the product page.
Amazon Affiliate Disclaimer: This article may contain affiliate links. If you purchase a product through one of these links, I may earn a small commission at no additional cost to you. Prices, availability, discounts, and shipping options can change at any time.
