V-Color announces 2TB RDIMM kits for Threadripper Pro 9000 — 256GB modules promise stability at absurdly high RAM capacities

An Asus pro motherboard filled with eight V-Color 256GB RDIMMs.
(Image credit: Asus, V-Color)

V-Color has announced its newest line of OC RDIMM DDR5 products, now offering registered DIMMs up to 256GB in capacity. Designed specifically for use with the new AMD Threadripper Pro 9000 WX-series CPU family, kits of the new RAM have been tested to support as much as 2TB of memory in a single system.

V-Color's newest RAM offerings cover a wide gamut of needs and use cases for the new "Shimada Peak" Threadripper offerings. Capacities range from 16GB to 256GB per DIMM, with RGB models available in the 16GB to 64GB range. Top speeds of these DIMMs reach up to 8200 MT/s in smaller capacity DIMMs, while the largest RAM sticks can still reach 6400 MT/s.

These high-capacity DIMMs have been thoroughly put through their paces, according to V-Color. The firm claims its new line has gone through "rigorous validation to ensure thermal stability, signal integrity, and efficiency" when used in high-capacity deployments of up to 2TB RAM in eight-channel topologies and 1TB in four-channel.

The new DIMMs are also more tunable and come with more overclocking headroom than their ECC counterparts, as we'd expect from kits prioritizing performance over absolute stability.

The new OC RDIMMs from V-Color have been specifically launched with and tested for the new Threadripper Pro 9000 WX-series, which were released to the public last week. The flagship chip in the lineup, the Threadripper Pro 9995WX, offers 96 cores and 192 threads, and is up to 73% faster than its predecessor, according to some benchmarks.

AMD is launching two chipsets along with Threadripper 9000. The WRX90 chipset, which exclusively supports the Pro 9000 chips, supports up to 2TB of up to DDR5-6400 RDIMMs across eight channels, along with 128 usable PCIe 5.0 lanes.

The TRX50 platform, which supports both the Pro and upcoming HEDT chips, supports DDR5-6400 RDIMMs at up to 1TB in four channels and up to 80 usable PCIe 5.0 lanes. In both cases, V-Color's newest OC RDIMM line will let builders hit the peak of Threadripper 9000's memory capacity when it launches.

V-Color's OC RDIMM line will come in modules and kits comprising 16GB, 24GB, 32GB, 48GB, 64GB, 96GB, 128GB, and 256GB modules when it releases, expected as soon as Q3 2025. Prices across the range are not yet known. A similar 2TB eight-channel kit of LRDIMMs from NEMIX is currently selling for $11,599 on Newegg Business. LRDIMMs are typically higher-priced than RDIMMs, so expect a price tag under 11 grand to fulfill your Threadripper 9000 memory needs.

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Sunny Grimm
Contributing Writer

Sunny Grimm is a contributing writer for Tom's Hardware. He has been building and breaking computers since 2017, serving as the resident youngster at Tom's. From APUs to RGB, Sunny has a handle on all the latest tech news.

  • Geef
    The link you showed for the the NEMIX RAM 2TB (8X256GB) DDR4 3200MHZ is DDR4 on Newegg.
    Threadripper Pro 9000 uses DDR5 memory so that memory from the story about will probably have a larger price difference when it comes out.
    Reply
  • dimar
    Just for a second I through it was RDRAM..
    Reply
  • John Nemesh
    So we can get up to 1TB on workstations now, but graphics cards are still shipping with 8GB on them. Nice.
    Reply
  • tamalero
    John Nemesh said:
    So we can get up to 1TB on workstations now, but graphics cards are still shipping with 8GB on them. Nice.
    Well.. AMD tries to innovate and push forward.
    Reply
  • usertests
    John Nemesh said:
    So we can get up to 1TB on workstations now, but graphics cards are still shipping with 8GB on them. Nice.
    If you can afford Threadripper and terabytes of RAM, surely you can open your wallet for:

    RTX Pro 6000 Blackwell tested, performs roughly 10-15% faster than a stock RTX 5090
    Reply
  • bit_user
    tamalero said:
    Well.. AMD tries to innovate and push forward.
    TBH, I'm having a little troubling deciphering the specs on the product page. The 256 GB DIMMs are listed as having:
    IC/Rank: 16Gx4 / 8Rx4Based on the specs of the lower-capacity DIMMs, I think that means 16 GiB/package = 128 Gib, which is a 4-high stack of 32 Gib dies. Then, I think the DIMM is 8-rank with 4 packages per rank.

    This is only possible with registered DIMMs, so don't expect to see anything greater than 64 GB DIMMs for desktop boards anytime soon. And I'm guessing the reason they had to use so many ranks is precisely because that still works out to 16 chips per rank, which is maybe some kind of limit.

    BTW, I'm really not sure how much credit AMD deserves for this, but the V-Color product page does indeed say the DIMMs are designed specifically for WRX90 boards.
    https://v-color.net/products/ddr5-ocrdimm-amd-wrx90-workstationmemory
    FWIW, I just ordered some V-Color memory last week. They seem very innovative in niches like ECC RAM, where I had previously been at the mercy of Kingston and Crucial, who've been moving at an absolutely glacial pace in the ECC UDIMM market.
    Reply
  • bit_user
    John Nemesh said:
    So we can get up to 1TB on workstations now, but graphics cards are still shipping with 8GB on them. Nice.
    The cheapest V-Color kit that gets you to 1 TB (8x 128 GB DDR5-5600) costs $12k (see link in above post). If you want to go all the way to 2 TB, it'll cost a cool $24.7k.

    For the 1 TB money, you could buy a RTX Pro 6000 with 96 GB of GDDR7 memory, as @usertests pointed out. For just a little more than the 2 TB price, you can get a H200 PCIe card with 141 GB of HBM3E:
    https://networkoutlet.com/products/h200-900-21010-0040-000-nvidia-h200-nvl-tensor-core-141gb-of-hbm3e-gpu-memory-gen-5-0-pci-express-x16?variant=46805840298213It's always good to read beyond the headlines and try to find out what's the catch.
    Reply
  • bit_user
    dimar said:
    Just for a second I through it was RDRAM..
    I think modern DRAM standards are utilizing pretty much all of the tricks that Rambus incorporated into its RDIMMs, and then some. Of course, once Rambus prevailed in its high-profile court cases against DDR memory makers, I'm sure they were only too happy to license these technologies to JEDEC.
    Reply