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Desktops with 256GB RAM

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13 desktops with 256GB RAM from Adamant Custom, ArsenalPC and CLX. Prices run $10,000 to $21,339.

Top brands: Adamant Custom (10)

CLXSpec score 8.2

AMD Ryzen Threadripper 9970X, GeForce RTX 5080, 16GB Graphics, 256GB RAM

+256GB ECC DDR5 memory for large data sets
+4TB NVMe M.2 SSD for large projects
+Threadripper 9970X processor with 4GHz clock
$21,339.99
as of 11/04/2026 22:19 PST - Details
LenovoSpec score 8.8

Intel Core Ultra 9 285, RTX 4000 Ada, 256GB RAM, 2TB Storage

+256GB memory for very heavy workloads
+2TB NVMe storage for large data sets
+Discrete NVIDIA RTX 4000 Ada graphics
−Tower design takes more desk space than mini models
$9,999.95
as of 11/04/2026 17:06 PST - Details
Adamant CustomSpec score 9.1

AMD Ryzen Threadripper PRO 9985WX, RTX PRO 6000, 96GB Graphics, 256GB RAM

+64-core AMD Threadripper PRO processor
+96GB GPU memory for demanding graphics tasks
+2TB storage capacity
−256GB DDR5 memory is less than the other build
No price recorded yet.
Adamant CustomSpec score 8.2

AMD Ryzen Threadripper 9960X, GeForce RTX 5070, 12GB Graphics, 256GB RAM

+Liquid cooling for sustained performance under heavy loads
+Large 256GB DDR5 memory for demanding workloads
+AMD Threadripper 9960X processor with 24 cores
−Only 12GB GPU VRAM for large AI or rendering models
No price recorded yet.
Adamant CustomSpec score 8.2

AMD Ryzen Threadripper PRO 9965WX, RTX PRO 4000, 24GB Graphics, 256GB RAM

+24-core AMD Threadripper PRO processor for heavy multithreaded work
+256GB DDR5 memory for very large datasets and projects
+ECC memory helps catch and correct memory errors
−Runs Windows 11 Pro rather than a home edition
No price recorded yet.
Adamant CustomSpec score 8.0

AMD Ryzen Threadripper 9980X, RTX PRO 2000, 16GB Graphics, 256GB RAM

+256GB DDR5 RAM for memory-heavy workloads
+16GB GPU memory for graphics and AI tasks
+1TB storage for a moderate file library
−1TB storage is less than the other configurations
No price recorded yet.
Adamant CustomSpec score 8.4

AMD Ryzen Threadripper 9970X, RTX PRO 4500, 32GB Graphics, 256GB RAM

+32-core AMD Threadripper 9970X processor for heavy multithreaded work
+256GB DDR5 memory for large datasets
+Discrete RTX PRO 4500 with 32GB VRAM
No price recorded yet.
Adamant CustomSpec score 8.4

AMD Ryzen Threadripper PRO 9985WX, GeForce RTX 5090, 32GB Graphics, 256GB RAM

+32GB GeForce RTX 5090 graphics memory
+4TB storage for large project libraries
+256GB DDR5 RAM
No price recorded yet.
Adamant CustomSpec score 8.2

AMD Ryzen Threadripper 9970X, GeForce RTX 5080, 16GB Graphics, 256GB RAM

+32-core AMD Threadripper 9970X processor for heavy multithreaded work
+256GB DDR5 memory for very large datasets
+Discrete GeForce RTX 5080 with 16GB VRAM
No price recorded yet.
Adamant CustomSpec score 8.2

AMD Ryzen Threadripper PRO 9975WX, RTX PRO 4500, 32GB Graphics, 256GB RAM

+32-core Threadripper PRO 9975WX processor for heavy parallel workloads
+256GB DDR5 memory for very large datasets and multitasking
+RTX PRO 4500 with 32GB VRAM for demanding graphics work
No price recorded yet.
ArsenalPCSpec score 9.5

GeForce RTX 5090, 256GB RAM, 8TB Storage, Windows 11 Pro

+256GB ram: the highest ram of the 13 here
+8TB storage: the highest storage of the 13 here
No current price. Check it at the store.
Adamant CustomSpec score 9.3

AMD Ryzen Threadripper 9980X, RTX PRO 6000, 96GB Graphics, 256GB RAM

+96GB gpu memory: the highest gpu memory of the 11 here
+96GB model memory: the highest model memory of the 11 here
No price recorded yet.
Adamant CustomSpec score 8.0

AMD Ryzen Threadripper 9970X, GeForce RTX 5070, 12GB Graphics, 256GB RAM

+256GB ram: the highest ram of the 13 here
−12GB gpu memory: 9 of the 11 here have a higher gpu memory
No price recorded yet.

Compare specs

desktopCPUGPUGPU memoryRAMStorageSpec scorePrice
AMD Ryzen Threadripper 9970XGeForce RTX 508016GB256GB4TB8.2$21,339.99
as of 11/04/2026 22:19 PST - Details
Intel Core Ultra 9 285RTX 4000 Ada256GB2TB8.8$9,999.95
as of 11/04/2026 17:06 PST - Details
AMD Ryzen Threadripper PRO 9985WXRTX PRO 600096GB256GB2TB9.1No current price
AMD Ryzen Threadripper 9960XGeForce RTX 507012GB256GB4TB8.2No current price
AMD Ryzen Threadripper PRO 9965WXRTX PRO 400024GB256GB2TB8.2No current price
AMD Ryzen Threadripper 9980XRTX PRO 200016GB256GB1TB8.0No current price
AMD Ryzen Threadripper 9970XRTX PRO 450032GB256GB4TB8.4No current price
AMD Ryzen Threadripper PRO 9985WXGeForce RTX 509032GB256GB4TB8.4No current price
AMD Ryzen Threadripper 9970XGeForce RTX 508016GB256GB4TB8.2No current price
AMD Ryzen Threadripper PRO 9975WXRTX PRO 450032GB256GB1TB8.2No current price

Before you buy

Spec scores, pros and cons, and prices are explained in the How it works section of the About page.