RAM comparison
Compare desktop and laptop RAM — DDR generation, capacity, speed, CAS latency, and ECC.
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We’ll plot them side by side. Only ram are suggested for a fair fight.
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Best ram right now
What matters when comparing ram
This ram page covers 17 products and compares the measurable fields that most often separate one model from another: capacity, speed, generation, cas latency. Use the filters to narrow the field, open a product page for the complete readout, and use a head-to-head page when two models are close enough that a category-wide rank is not enough.
How to read the ranking
Mars Score is a normalized category score, not a laboratory replacement and not a claim that the highest-ranked product is right for every buyer. A high score indicates broad strength across the weighted fields; a lower score can still be the better choice when one specific requirement matters more than the average.
Read the scoring methodology →Popular ram comparisons
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Brands in ram
How to choose RAM in 2026
DDR5 has fully displaced DDR4 on current platforms. The Mars Score for memory weights capacity, speed, CAS latency, and platform-stable operation — not RGB or heatspreader styling. Real-world game performance differences between sane kits cluster within 3–5%; budget the savings toward CPU or GPU.
Capacity: 32 GB is the new minimum, 64 GB is the comfort tier
16 GB is no longer enough for AAA gaming with content creation, browser, and Discord open. 32 GB DDR5 (2×16) covers nearly all gaming and productivity needs in 2026. 64 GB (2×32 or 2×48) is the comfort tier for creators, VMs, and local LLM inference.
Speed and timings: the AM5 / LGA1851 sweet spots
On AM5, DDR5-6000 CL30 is the documented EXPO sweet spot — higher speeds force the memory controller out of 1:1 mode and lose performance. On LGA1851, DDR5-7200+ scales further. Match the kit to the platform's known sweet spot rather than chasing peak MT/s.
Single rank vs dual rank, 2 DIMM vs 4 DIMM
Dual-rank kits (48 GB DIMMs in particular) deliver slightly more bandwidth but train at lower speeds. Populating 4 of 4 DIMM slots usually forces a downclock; for high-speed configurations, run 2 sticks.
ECC, RDIMM, and workstation memory
ECC UDIMM is supported on most AM5 motherboards (verify on the QVL); RDIMM/LRDIMM requires Threadripper or Xeon W. For local LLM inference and long-running compilation, ECC catches single-bit errors that silently corrupt data.
EXPO, XMP, and timing presets
Always enable the kit's EXPO (AMD) or XMP (Intel) profile in BIOS after install — JEDEC defaults run several speed grades slower. If POST fails on EXPO, drop to the next-lower preset before assuming the kit is bad.
How vsMars scores RAM
Each score combines DDR generation, capacity, speed (MT/s), CAS latency, and warranty/lifetime support per the methodology. See motherboards for QVL compatibility and CPUs for memory-controller specs.
Frequently asked
How many ram are catalogued on vsMars?+
17 ram from 7 brands are catalogued in this category, each with a complete spec sheet and a transparent Mars Score.
How are ram ranked?+
Each ram is scored by the category-specific Mars Score formula — a weighted average of normalized specs with the weights published on the methodology page. No editorial hand-tuning.
Which ram has the highest Mars Score right now?+
FURY Renegade DDR5-8000 32GB leads the ram category with a Mars Score of 83.5.
Can I compare two ram side by side?+
Yes — pick any two ram from the category list and the comparison page renders side-by-side specs, advantages on each side, and a Mars Score verdict.