DDR4 vs DDR5 RAM: Is the Upgrade Worth It in 2026?

In the DDR4 vs DDR5 debate, DDR5 is the faster memory, and in newer games the gap is real: Tom’s Hardware’s mid-2026 retest measured an 11 to 14% average frame rate deficit for DDR4 on Intel’s LGA 1700 platform. Is it worth the upgrade? Only in some cases. DDR5 prices in 2026 are high enough that most people with a working DDR4 system should keep it for now.

If you’re building new on AMD AM5 or Intel’s Core Ultra 200S platform, there’s nothing to decide: those platforms only take DDR5. The hard call is for AM4 and LGA 1700 owners, and that’s mostly what this guide covers.

DDR4 vs DDR5: what’s actually different?

JEDEC published the DDR5 standard in July 2020, aiming for double DDR4’s bandwidth along with better power efficiency. Retail kits followed in 2021.

Spec	DDR4	DDR5
JEDEC speed	Up to 3200 MT/s	Starts at 4800 MT/s, planned to 8800 MT/s
Operating voltage	1.2V	1.1V
Voltage regulation	On the motherboard	On the DIMM (PMIC)
Minimum burst length	BL8	BL16

According to Kingston, DDR5’s 4800 MT/s starting speed is 50% more bandwidth than DDR4’s 3200 MT/s top JEDEC speed. DDR5 also runs at 1.1V instead of 1.2V, and it moves power regulation onto the memory module with an on-board PMIC. According to JEDEC, DDR5 also has a longer burst length and a higher bank count, which help each memory channel work more efficiently.

Which platforms support DDR4 vs DDR5?

DDR4 and DDR5 are not interchangeable. You can’t put a DDR5 stick in a DDR4 slot, or the reverse. What you can use depends on your socket and, for Intel, your motherboard.

Platform	DDR4	DDR5	Notes
AMD AM4 (Ryzen 5000 and older)	Yes	No	Ryzen 5000 officially supports DDR4-3200
AMD AM5 (launched Sept 27, 2022)	No	Yes	AMD says support runs through 2029
Intel 12th Gen (LGA 1700)	Up to 3200 MT/s	Up to 4800 MT/s	Motherboard decides which
Intel 13th/14th Gen (LGA 1700)	Up to 3200 MT/s	Up to 4800 or 5600 MT/s	Motherboard decides which
Intel Core Ultra 200S (LGA 1851)	No	Yes	CUDIMM support; refresh CPUs up to DDR5-7200

AMD: AM4 means DDR4, AM5 means DDR5

Corsair puts the rule simply: AM4 boards use DDR4 and AM5 boards use DDR5. AM5 runs dual-channel DDR5 only. At Computex 2026, AMD confirmed it will support the socket through 2029.

AM4 hasn’t gone away, though. AMD has kept releasing AM4 chips such as the Ryzen 5000XT models, and Wccftech reports that AMD is working to increase supply of older Ryzen processors now that the DDR5 shortage has brought AM4 demand back.

Intel: LGA 1700 does both, LGA 1851 is DDR5 only

Intel 12th, 13th and 14th Gen CPUs can run either memory type, but Intel says the motherboard determines which one works, not the CPU alone. Check your board’s memory support before you buy RAM.

Arrow Lake (Core Ultra 200S, launched October 24, 2024) moved to LGA 1851 and dropped DDR4 entirely. In exchange it adds native CUDIMM support, and according to Wccftech, Intel has confirmed the refresh CPUs support DDR5-7200. Check Intel’s spec page for the rated speed of your specific chip.

Is DDR5 faster than DDR4 for gaming?

Yes, but how much depends heavily on which games you play and which test you read. Two Tom’s Hardware tests on the same kind of platform came to very different answers.

Test	DDR4 deficit vs DDR5	Takeaway
Tom’s Hardware 2025 (older games)	1% to 3%	Not worth buying DDR5 just for FPS
Tom’s Hardware mid-2026 (15 games, LGA 1700)	11% to 14% average, up to 25.3%	Real gap in newer, CPU-heavy games
Tom’s Hardware 2026 DDR4 build (Core i5-14600KF)	Around 5% or less in most cases	A DDR4 build is worth considering

The 2025 test found tiny gaps: 3% in Assassin’s Creed Valhalla, about 2% in Far Cry 6, Watch Dogs: Legion and Borderlands 3, and 1% in Shadow of the Tomb Raider. Based on those results, Tom’s Hardware advised against buying DDR5 for gaming at that point.

The mid-2026 retest used a newer 15-game suite across Intel’s full LGA 1700 lineup. It found DDR4 lost 11 to 14% on average. The worst case was Marvel Rivals on a Core i7-14700K, where DDR4 was 25.3% slower.

Why does the DDR4 penalty grow with CPU power?

Most older comparisons leave this out: in the mid-2026 retest, Alder Lake chips lost about 9% with DDR4, while Raptor Lake flagships lost about 14%. The faster the CPU, the more slower memory holds it back.

In practice, putting DDR4 with a Core i5 wastes very little. Tom’s Hardware’s 2026 DDR4 build feature measured a loss of around 5% or less in most cases with a Core i5-14600KF. Putting DDR4 with a Core i7-14700K or a Core i9 wastes more of what you paid for.

How big is the DDR4 vs DDR5 price gap in 2026?

Big, and it keeps moving. A memory shortage that started in 2025, driven largely by AI datacenter demand for HBM, pushed DRAM prices up 172% over 2025. DDR4 went up too.

Snapshot	Figure	Source
32GB DDR4 kit, October 2025	$60 to $90	Tom’s Hardware
32GB DDR4 kit, January 2026	$150 to $180	Tom’s Hardware
32GB DDR5-6000 kit, Sept 5, 2026	$489.99 ($15.31/GB)	Tech Insider (via TechFuelHQ)
32GB DDR5 kit, Sept 11, 2026	$425 to $560 ($13.28 to $17.50/GB)	Capital and Compute
DDR4 average, Sept 11, 2026	$7.77/GB	Capital and Compute

Tom’s Hardware’s price index shows a 32GB DDR4 kit going from $60 to $90 in October 2025 to $150 to $180 by January 2026. DDR4 has kept climbing since that snapshot: Capital and Compute’s tracker shows the DDR4 1Gx8 3200 spot chip price hitting fresh highs of $45.79 on September 16 and $46.11 on September 24, 2026.

On the DDR5 side, Capital and Compute logged 32GB kits at $425 to $560 on September 11, 2026, while DDR4 averaged $7.77/GB. That makes DDR5 cost about twice as much per gigabyte.

It isn’t letting up. In Germany, 3DCenter’s August 2026 survey put its DDR5 index at 486% of its July 2025 level. TrendForce expected contract DRAM prices to rise another 13 to 18% in Q3 2026.

Should you upgrade from DDR4 to DDR5? It depends on your platform

Moving from DDR4 to DDR5 is never just a RAM swap. On AM4 it means a new CPU and motherboard, and on LGA 1700 it means at least a new motherboard. So the real question is what you’re starting with.

Your starting point	What DDR5 costs you	Recommendation
AM4 with DDR4	New CPU, AM5 board and DDR5 kit	Stay on AM4. Upgrade within Ryzen 5000 or buy a GPU instead
LGA 1700 with DDR4, Core i5 class	New DDR5 board and kit	Stay. The loss is around 5% or less in most games
LGA 1700 with DDR4, Core i7/i9 class	New DDR5 board and kit	Worth thinking about if you play CPU-heavy games and can handle today’s prices
Building new on AM5 or LGA 1851	DDR5 is required	Buy DDR5. 32GB is the usual target
Building new on a budget with DDR4 to carry over	Nothing extra for RAM	A DDR4 build on AM4 or LGA 1700 is a reasonable choice

The last row matters more than it would have a year ago. Tom’s Hardware says a DDR4 build is worth considering, particularly if you can reuse RAM from an older PC. The trade-off is a dead-end platform: AM5 has promised support through 2029, and AM4 doesn’t.

Common mistake: comparing CAS latency across generations

DDR5 kits list much higher CL numbers than DDR4 kits, so DDR5 can look slower to respond. That’s misleading, because CL is counted in clock cycles and DDR5’s cycles are shorter.

To compare real latency, convert it to nanoseconds: true latency (ns) = CL ÷ MT/s × 2000.

• Example DDR4-3200 kit at CL16: 16 ÷ 3200 × 2000 = 10 ns
• Example DDR5-6000 kit at CL30: 30 ÷ 6000 × 2000 = 10 ns

In this example the two kits respond equally fast, even though one CL number is twice the other, and the DDR5 kit has far more bandwidth. Always run the formula before assuming a lower CL makes DDR4 quicker.

DDR4 vs DDR5 verdict

DDR4

DDR5