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Home Server Server CPUs 81920 Cores Per Rack with AMD EPYC Venice at HPE Discover 2026
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HPE Cray GX250a For HPE Cray GX5000 At HPE Discover 2026 5
At HPE Discover, the company showed some neat hardware. We have hundreds of photos. Luckily, at the end of Wednesday, the show floor was fairly empty, and we grabbed some really neat photos. One example is this was the HPE Cray GX5000 nodes. HPE had one of its next-gen AMD EPYC "Venice" sleds on display. The HPE Cray GX250a Compute Blade houses 8x AMD EPYC Venice CPUs. The company said this totals 81,920 cores per rack.
HPE Cray GX250a Compute Blade with AMD EPYC Venice
Here is the HPE Cray GX250a compute blade looking from the rear. You can see the center busbar for power. There are also hot and cool mating points on either side for the liquid-cooling loop. At a high-level, this is like ORv3, but it is also quite different in its implementation.
HPE Cray GX250a For HPE Cray GX5000 At HPE Discover 2026 2<br>Between that and the front of the sled, you can see power running through the middle, cables and liquid cooling tubes running on the far sides, and then eight AMD EPYC Venice CPUs with their 16-channel memory running through the chassis.
HPE Cray GX250a For HPE Cray GX5000 At HPE Discover 2026 3<br>Four of these nodes looked different. This is crazy. There are small Samsung E1.S EDSSF SSDs on top of the CPU coldplates. We were told these were local fast scratch storage.
HPE Cray GX250a For HPE Cray GX5000 At HPE Discover 2026 4<br>The memory is all liquid-cooled and is in standard DIMM form factors. The DIMMs looked like MRDIMMs, but we could not fully see them.
HPE Cray GX250a For HPE Cray GX5000 At HPE Discover 2026 5<br>Four of the CPUs did not have the top SSDs so we could see the coldplates a bit better.
HPE Cray GX250a For HPE Cray GX5000 At HPE Discover 2026 7<br>Here is the AMD EPYC coldplate with six screw points. This angle also provides a clear view of the DIMM cooling.
HPE Cray GX250a For HPE Cray GX5000 At HPE Discover 2026 8<br>Here is another angle showing how the liquid-cooling nozzles are connected.
HPE Cray GX250a For HPE Cray GX5000 At HPE Discover 2026 9<br>On the front, we see something neat. This is the Vanover VP1-01 node, and that label usually means this is not just a static demo dummy but a working system. Another clue is the SSDs and DRAM installed in the system.
HPE Cray GX250a For HPE Cray GX5000 At HPE Discover 2026 10<br>You might be wondering about those side pods. We were told this is Slingshot 400, with two NICs on either side, and that the future Slingshot 800 would go in here as well. Also, the connectors are really interesting. They almost look like OCP NIC 3.0 connectors, cabled to each CPU.
HPE Cray GX250a For HPE Cray GX5000 At HPE Discover 2026 11<br>In this generation, HPE is using a CDU capable of cooling 1.6MW and that was on display as well
HPE Cray 1.6MW For GX5000 At HPE Discover 2026 3<br>Here is a side view.
HPE Cray 1.6MW For GX5000 At HPE Discover 2026 2<br>The faceplate of the system was for the Mission supercomputer destined for Los Alamos with NVIDIA,...