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We tested modern games on a real system to find out how much memory you actually need

Every hardware generation brings the same question back to the surface: how much RAM is enough for gaming now? With DDR5 prices still unstable and memory kits more expensive than they should be, many gamers are hesitating before jumping straight to 32GB.

So in 2026, can you still get away with 16GB — or is it finally obsolete?

To answer that, we ran a wide set of benchmarks across modern AAA games using a real-world gaming system rather than a sterile test bench. The results are more nuanced than the “just buy 32GB” advice you’ll usually hear.

Test Setup: A Real System, Not a Clean Lab Build

Instead of a fresh Windows install, testing was done on a three-year-old Windows 11 gaming system with daily-use software already installed — making it far more representative of an actual gamer’s PC.

Hardware configuration:

  • CPU: Ryzen 7 9800X3D
  • GPU: GeForce RTX 5090
  • Memory: 64GB DDR5 (capacity limited via MSConfig)
  • Resolution: 4K
  • Settings: Maximum quality presets
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Chrome (6 tabs), Discord, and monitoring tools were running in the background during all tests.

Using Windows’ memory limit feature allowed simulation of 8GB, 16GB, 32GB, and 64GB configurations while keeping identical memory speed, timings, and rank — ensuring fair comparisons.

Benchmarks

Cyberpunk 2077: Phantom Liberty – 4K Ultra Performance by RAM Size

RAM SizeCPU UsageGPU UsageDRAM UsedDRAM AvailableVRAM UsageDRAM ReadDRAM WriteAvg FPS1% Low FPS
8GB34%99%7423 MB679 MB15050 MB7 GB/s2 GB/s51 FPS43 FPS
16GB36%99%12280 MB3822 MB15316 MB6 GB/s2 GB/s49 FPS45 FPS
32GB36%99%11949 MB19689 MB14970 MB6 GB/s2 GB/s49 FPS43 FPS
64GB33%99%14029 MB51111 MB15507 MB7 GB/s2 GB/s50 FPS46 FPS

Even at Ultra settings, Cyberpunk never exceeded 15GB of system memory usage. Performance on 16GB, 32GB, and 64GB was effectively identical.
At 8GB the game remains playable but suffers from occasional hitching and uneven frame pacing.

Clair Obscur: Expedition 33 – 4K Ultra Performance by RAM Size

RAM SizeCPU UsageGPU UsageDRAM UsedDRAM AvailableVRAM UsageDRAM ReadDRAM WriteFramerateAvg FPS1% Low FPS
8GB26%97%7225 MB877 MB10272 MB6 GB/s3 GB/s65 FPS62 FPS30 FPS
16GB17%97%10867 MB5235 MB10829 MB7 GB/s3 GB/s66 FPS62 FPS50 FPS
32GB16%97%11853 MB20249 MB10794 MB6 GB/s3 GB/s64 FPS63 FPS53 FPS
64GB16%97%13026 MB52115 MB10986 MB7 GB/s3 GB/s64 FPS63 FPS51 FPS

This game peaks at just over 13GB of memory usage, making 16GB ideal and anything above that unnecessary. It technically runs at 8GB, but stuttering becomes noticeable and immersion suffers.

Battlefield 6 – 4K Extreme Performance by RAM Size

RAM SizeCPU UsageGPU UsageDRAM UsedDRAM AvailableVRAM UsageDRAM ReadDRAM WriteFramerateAvg FPS1% Low FPS
8GB33%97%6847 MB1256 MB11681 MB4 GB/s2 GB/s110 FPS113 FPS99 FPS
16GB35%97%10667 MB5435 MB12047 MB5 GB/s2 GB/s109 FPS112 FPS94 FPS
32GB33%97%12754 MB19348 MB12277 MB6 GB/s2 GB/s110 FPS112 FPS93 FPS
64GB34%97%13794 MB51347 MB12260 MB5 GB/s2 GB/s111 FPS112 FPS95 FPS

Battlefield 6 behaves similarly, remaining playable at 8GB — though just barely. Memory usage climbs aggressively when more RAM is available, reaching roughly 11GB on a 16GB system and as high as 14GB when unrestricted.
This makes Battlefield 6 especially sensitive to VRAM limits: GPUs with less than 16GB of VRAM push even more data into system memory, which can lead to significant pressure and stutter at higher presets.

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The Outer Worlds 2 – 4K Ultra Performance by RAM Size

RAM SizeCPU UsageGPU UsageDRAM UsedDRAM AvailableVRAM UsageDRAM ReadDRAM WriteFramerateAvg FPS1% Low FPS
8GB40%99%7325 MB777 MB8366 MB11 GB/s4 GB/s84 FPS87 FPS59 FPS
16GB49%99%14249 MB1853 MB9106 MB12 GB/s5 GB/s85 FPS87 FPS67 FPS
32GB46%99%15239 MB16863 MB8771 MB11 GB/s4 GB/s83 FPS85 FPS66 FPS
64GB46%99%14978 MB50163 MB8648 MB8 GB/s3 GB/s85 FPS86 FPS67 FPS

Even as a brand-new release, The Outer Worlds 2 runs without issue on 16GB of RAM. While usage can peak at around 15.5GB when unrestricted, the game behaves well within 16GB limits.
At 8GB it is playable, but consistent microstutter undermines the experience.

Borderlands 4 – 4K Epic Performance by RAM Size

RAM SizeCPU UsageGPU UsageDRAM UsedDRAM AvailableVRAM UsageDRAM ReadDRAM WriteFramerateAvg FPS1% Low FPS
8GB37%98%7234 MB868 MB9530 MB7 GB/s3 GB/s70 FPS73 FPS15 FPS
16GB32%97%13583 MB1520 MB9437 MB7 GB/s3 GB/s70 FPS73 FPS59 FPS
32GB30%96%17958 MB14144 MB9236 MB6 GB/s2 GB/s70 FPS76 FPS59 FPS
64GB38%98%18074 MB47066 MB9650 MB7 GB/s3 GB/s72 FPS74 FPS60 FPS

Despite being one of the most technically advanced titles tested, Borderlands 4 runs extremely well on 16GB of RAM. Even though the engine can consume up to 18GB when available, performance on 16GB remains almost identical to higher capacities.
The 8GB configuration, on the other hand, suffers badly — average FPS may appear acceptable, but 1% lows collapse due to constant streaming delays.

Mafia: The Old Country – 4K Epic Performance by RAM Size

RAM SizeCPU UsageGPU UsageDRAM UsedDRAM AvailableVRAM UsageDRAM ReadDRAM WriteFramerateAvg FPS1% Low FPS
8GB54%97%7529 MB573 MB10368 MB17 GB/s6 GB/s75 FPS79 FPS7 FPS
16GB47%98%12910 MB2192 MB10413 MB15 GB/s5 GB/s77 FPS78 FPS6 FPS
32GB46%97%19438 MB12664 MB10741 MB15 GB/s4 GB/s75 FPS78 FPS62 FPS
64GB46%98%20242 MB44899 MB10637 MB15 GB/s5 GB/s76 FPS78 FPS60 FPS

This is the first game where 16GB genuinely becomes insufficient. Frame times become erratic, traversal stutter is frequent, and the experience degrades noticeably.
The game requires closer to 20GB for consistent performance, making a 24GB or 32GB configuration the realistic minimum here. At 8GB, the game is effectively unplayable.

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Warhammer 40,000: Space Marine 2 – 4K Ultra Performance by RAM Size

RAM SizeCPU UsageGPU UsageDRAM UsedDRAM AvailableVRAM UsageDRAM ReadDRAM WriteFramerateAvg FPS1% Low FPS
8GB57%97%7253 MB849 MB6278 MB11 GB/s4 GB/s132 FPS142 FPS75 FPS
16GB63%77%14641 MB1461 MB10854 MB12 GB/s4 GB/s109 FPS135 FPS91 FPS
32GB56%98%17152 MB14950 MB17207 MB13 GB/s4 GB/s134 FPS139 FPS102 FPS
64GB63%98%17568 MB47573 MB18062 MB12 GB/s4 GB/s126 FPS136 FPS102 FPS

At first glance, Space Marine 2 appears to run at 8GB — but the visuals quietly degrade. High-resolution textures fail to load properly, replaced with muddy low-resolution assets.
This makes 16GB the true minimum for correct rendering. Beyond that, there is little benefit to 32GB or more.

Cyberpunk 2077: Phantom Liberty – 4K Medium Performance by RAM Size

RAM SizeCPU UsageGPU UsageDRAM UsedDRAM AvailableVRAM UsageDRAM ReadDRAM WriteFramerateAvg FPS1% Low FPS
8GB52%97%6290 MB812 MB7727 MB10 GB/s4 GB/s152 FPS155 FPS92 FPS
16GB52%98%11579 MB5524 MB7883 MB9 GB/s3 GB/s152 FPS155 FPS131 FPS
32GB51%98%12311 MB19327 MB8827 MB8 GB/s3 GB/s146 FPS151 FPS125 FPS
64GB52%98%13035 MB52105 MB7930 MB9 GB/s3 GB/s148 FPS155 FPS131 FPS

Dropping to Medium settings at 4K improves frame rates but does not meaningfully change memory behavior. 16GB continues to deliver flawless performance, while 8GB remains marginally usable but inconsistent.

Doom: The Dark Ages – 4K Ultra Nightmare Performance by RAM Size

RAM SizeCPU UsageGPU UsageDRAM UsedDRAM AvailableVRAM UsageDRAM ReadDRAM WriteFramerateAvg FPS1% Low FPS
8GB32%99%7235 MB867 MB13027 MB10 GB/s4 GB/s96 FPS94 FPS18 FPS
16GB37%98%12226 MB3877 MB13325 MB12 GB/s5 GB/s96 FPS95 FPS85 FPS
32GB28%98%13501 MB18601 MB13159 MB12 GB/s5 GB/s97 FPS94 FPS83 FPS
64GB28%99%13220 MB51921 MB13087 MB9 GB/s4 GB/s99 FPS96 FPS86 FPS

With peak memory usage around 13.5GB, Doom: The Dark Ages fits comfortably within a 16GB configuration. Additional memory offers no benefit, while 8GB suffers from constant stutter and is effectively not viable.

ARC Raiders – 4K Ultra Performance by RAM Size

RAM SizeCPU UsageGPU UsageDRAM UsedDRAM AvailableVRAM UsageDRAM ReadDRAM WriteFramerateAvg FPS1% Low FPS
8GB35%98%7424 MB679 MB6836 MB9 GB/s2 GB/s111 FPS113 FPS64 FPS
16GB37%98%13486 MB2616 MB7536 MB8 GB/s2 GB/s120 FPS118 FPS89 FPS
32GB41%98%16376 MB14726 MB7245 MB10 GB/s3 GB/s113 FPS116 FPS83 FPS
64GB34%97%17331 MB47809 MB7273 MB10 GB/s2 GB/s118 FPS120 FPS86 FPS

Arc Raiders turned out to be surprisingly memory-efficient. Even when restricted to just 8GB of system RAM, the game remained playable, with only occasional and relatively minor stutter. That said, 16GB clearly delivers the intended experience, eliminating almost all frame time inconsistency and making gameplay feel properly smooth.

Marvel Rivals – 4K Ultra Performance by RAM Size

RAM SizeCPU UsageGPU UsageDRAM UsedDRAM AvailableVRAM UsageDRAM ReadDRAM WriteFramerateAvg FPS1% Low FPS
8GB40%99%7194 MB908 MB10016 MB11 GB/s5 GB/s88 FPS87 FPS3 FPS
16GB36%99%13255 MB1848 MB10046 MB10 GB/s4 GB/s89 FPS100 FPS61 FPS
32GB39%99%17869 MB14233 MB10268 MB11 GB/s4 GB/s89 FPS98 FPS61 FPS
64GB37%99%18290 MB46851 MB10489 MB9 GB/s4 GB/s88 FPS100 FPS67 FPS

Marvel Rivals shows virtually no performance difference between 16GB, 32GB, and 64GB configurations. Memory usage peaks around 18GB when available, but clever paging behavior allows the game to remain stable at 16GB.
At 8GB, however, the experience deteriorates quickly, with frequent stutters and unstable frame pacing making the game unpleasant to play.

Kingdom Come: Deliverance II – 4K Ultra Performance by RAM Size

RAM SizeCPU UsageGPU UsageDRAM UsedDRAM AvailableVRAM UsageDRAM ReadDRAM WriteAvg FPS1% Low FPS
8GB54%99%6839 MB1263 MB8742 MB10 GB/s4 GB/s122 FPS96 FPS
16GB51%99%12553 MB3749 MB9187 MB10 GB/s4 GB/s121 FPS108 FPS
32GB52%99%12967 MB19135 MB9228 MB11 GB/s4 GB/s122 FPS104 FPS
64GB56%99%13189 MB51951 MB8773 MB11 GB/s4 GB/s123 FPS104 FPS

This title also sits comfortably below 14GB of usage. 16GB works well, 32GB offers no improvement, and 8GB causes frequent frame pacing problems that heavily impact smoothness.

Black Myth Wukong – 4K Ultra Performance by RAM Size

RAM SizeCPU UsageGPU UsageDRAM UsedDRAM AvailableVRAM UsageDRAM ReadDRAM WriteFramerateAvg FPS1% Low FPS
8GB23%98%7256 MB846 MB8560 MB3 GB/s2 GB/s90 FPS91 FPS63 FPS
16GB21%98%13023 MB3079 MB8889 MB3 GB/s2 GB/s91 FPS94 FPS80 FPS
32GB22%98%13818 MB18285 MB9194 MB3 GB/s2 GB/s91 FPS92 FPS66 FPS
64GB20%98%15254 MB49886 MB8824 MB3 GB/s2 GB/s91 FPS92 FPS79 FPS

Black Myth: Wukong is very comfortable at 16GB and gains nothing from additional memory. The 8GB configuration technically runs, but frequent stutter and poor frame pacing make it a compromised experience. For this title, 16GB should be considered the baseline.

Marvel Rivals – RTX 5090 (4K Ultra) Performance by RAM Size

RAM SizeCPU UsageGPU UsageDRAM UsedDRAM AvailableVRAM UsageDRAM ReadDRAM WriteFramerateAvg FPS1% Low FPS
8GB40%99%7194 MB908 MB10016 MB11 GB/s5 GB/s84 FPS87 FPS3 FPS
16GB39%98%13255 MB1848 MB10059 MB10 GB/s4 GB/s87 FPS100 FPS61 FPS
32GB41%98%17816 MB14286 MB10279 MB11 GB/s4 GB/s84 FPS98 FPS61 FPS
64GB37%99%18290 MB46851 MB10489 MB9 GB/s4 GB/s87 FPS100 FPS67 FPS


With the RTX 5090, 16GB of VRAM proved more than sufficient for smooth gameplay. While 32GB and 64GB configurations offered slightly better 1% lows, the overall gains were minimal — confirming that anything beyond 16GB is overkill for this title.

Marvel Rivals – RX 9060 XT 8GB (1440p Ultra FSR Quality)

RAM SizeCPU UsageGPU UsageDRAM UsedDRAM AvailableVRAM UsageDRAM ReadDRAM WriteFramerateAvg FPS1% Low FPS
8GB25%51%6596 MB506 MB6022 MB4 GB/s3 GB/s51 FPS51 FPS41 FPS
16GB25%100%15055 MB2047 MB7592 MB14 GB/s2 GB/s43 FPS63 FPS21 FPS
32GB27%99%17977 MB14125 MB7729 MB14 GB/s2 GB/s45 FPS67 FPS41 FPS


With only 8GB of VRAM, Marvel Rivals offloads texture and asset data into system memory, causing a ~70% spike in DRAM read bandwidth. On 16GB systems, this overflow hits the pagefile, resulting in severe frame time instability. While 32GB alleviates the bottleneck, the RX 9060 XT’s limited VRAM remains a constraint.

Spider-Man 2 – RX 9060 XT 8GB vs 16GB (1440p, FSR Quality, Very High + High RT)

GPU ModelCPU UsageGPU UsageDRAM UsedDRAM AvailableVRAM UsageDRAM ReadDRAM WriteAvg FPS1% Low FPS
16GB RX 9060 XT51%100%15795 MB1308 MB14490 MB15 GB/s5 GB/s79 FPS50 FPS
8GB RX 9060 XT45%52%16663 MB439 MB7963 MB26 GB/s8 GB/s58 FPS29 FPS


The 16GB RX 9060 XT outperformed its 8GB counterpart with 35% higher average FPS and a 70% boost in 1% lows, delivering smoother gameplay. The 8GB model suffered from VRAM overflow, forcing asset streaming into system memory and spiking DRAM read bandwidth by 73%, which degraded frame pacing and responsiveness.

Spider-Man 2 – RX 9060 XT 8GB vs 16GB (1440p, FSR Quality, Very High + High RT)

GPU ModelCPU UsageGPU UsageDRAM UsedDRAM AvailableVRAM UsageDRAM ReadDRAM WriteAvg FPS1% Low FPS
16GB RX 9060 XT47%100%17478 MB14625 MB14514 MB15 GB/s5 GB/s81 FPS60 FPS
8GB RX 9060 XT44%100%23433 MB8669 MB7940 MB28 GB/s7 GB/s56 FPS32 FPS


Upgrading to 32GB of system RAM had minimal impact on the 16GB RX 9060 XT, which was already performing optimally. However, the 8GB variant saw a 60%+ boost in 1% lows, significantly reducing stuttering and improving frame pacing. This highlights how additional system memory can help offset VRAM limitations in demanding titles.

How Modern Games Use System Memory

8GB: Functionally obsolete

Almost every modern title suffered from severe stutter, unstable frame times, or broken asset streaming at 8GB. Even when average FPS looked acceptable, gameplay was often inconsistent and unpleasant.

8GB is no longer suitable for modern gaming.

16GB: Still viable for most games

Surprisingly, most modern titles ran perfectly fine with 16GB:

Games like:

  • Cyberpunk 2077: Phantom Liberty
  • Black Myth: Wukong
  • Doom: The Dark Ages
  • Kingdom Come: Deliverance II
  • The Outer Worlds 2
  • Borderlands 4

…all showed near-identical performance between 16GB, 32GB, and 64GB — with peak usage typically staying between 13–18GB.

Frame rates and 1% lows were stable, smooth, and consistent.

Where 16GB starts to struggle

A few heavy titles (notably large open-world or asset-dense games) can push beyond 18–20GB of system memory. In these cases, 16GB begins to suffer from:

  • Increased paging to disk
  • Stutter during traversal
  • Worse 1% lows

In those scenarios, 32GB provides a noticeably smoother experience.

VRAM Changes the Equation

System memory requirements increase significantly when GPU VRAM is limited.

When a GPU has only 8GB of VRAM, large textures and assets spill into system memory, massively increasing DRAM bandwidth usage and pressure.

In tests:

  • 8GB VRAM GPUs pushed memory traffic up by ~70%
  • This made 16GB system memory borderline insufficient
  • 32GB significantly reduced stutter and improved 1% lows

In contrast, GPUs with 16GB or more VRAM rarely needed to rely on system memory overflow — allowing 16GB RAM configurations to perform much better.

RAM Capacity vs VRAM Capacity: The Real Rule

GPU VRAMRecommended System RAM
8GB32GB
12–16GB16–32GB
24GB+16GB sufficient

The less VRAM you have, the more system RAM you need as a buffer.

So… How Much RAM Should You Buy in 2026?

The short answer:

  • 8GB: No longer viable
  • 16GB: Still acceptable for most gamers
  • 32GB: The new “safe” long-term sweet spot

If you’re building a high-end system, 32GB is the smart choice — it avoids bottlenecks, handles future games better, and prevents paging issues.

But if you’re on a budget, running a GPU with plenty of VRAM, and mainly play multiplayer or well-optimized titles, 16GB remains perfectly usable in 2026.

Conclusion: 32GB Is Ideal — But 16GB Isn’t Dead Yet

In a perfect world with sane pricing, we’d recommend 32GB to everyone. It’s the capacity that guarantees smooth performance across all workloads and future releases.

But the market isn’t ideal — and with DDR5 prices still inflated, 16GB remains a valid compromise that performs far better than many expect.

As long as you:

  • Avoid 8GB GPUs when possible
  • Don’t overload your system with background tasks
  • Stick to reasonably optimized titles

…16GB will still deliver an excellent gaming experience in 2026.

It’s not future-proof — but it’s far from obsolete.

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