I have a 1TB Asus Ascent GX10 (acquired it a few weeks ago).
In terms of compute and memory bandwidth (tested using llama.cpp) appears to be identical to the regular DGX Spark.
# commit 5acd455
./llama-bench -m ./gpt-oss-20b-mxfp4.gguf -fa 1 -d 0,4096,8192,16384,32768 -p 2048 -n 32 -ub 2048
ggml_cuda_init: GGML_CUDA_FORCE_MMQ: no
ggml_cuda_init: GGML_CUDA_FORCE_CUBLAS: no
ggml_cuda_init: found 1 CUDA devices:
Device 0: NVIDIA GB10, compute capability 12.1, VMM: yes
| model | size | params | backend | ngl | n_ubatch | fa | test | t/s |
| ------------------------------ | ---------: | ---------: | ---------- | --: | -------: | -: | --------------: | -------------------: |
| gpt-oss 20B MXFP4 MoE | 11.27 GiB | 20.91 B | CUDA | 99 | 2048 | 1 | pp2048 | 3639.61 ± 9.49 |
| gpt-oss 20B MXFP4 MoE | 11.27 GiB | 20.91 B | CUDA | 99 | 2048 | 1 | tg32 | 81.04 ± 0.49 |
| gpt-oss 20B MXFP4 MoE | 11.27 GiB | 20.91 B | CUDA | 99 | 2048 | 1 | pp2048 @ d4096 | 3382.30 ± 6.68 |
| gpt-oss 20B MXFP4 MoE | 11.27 GiB | 20.91 B | CUDA | 99 | 2048 | 1 | tg32 @ d4096 | 74.66 ± 0.94 |
| gpt-oss 20B MXFP4 MoE | 11.27 GiB | 20.91 B | CUDA | 99 | 2048 | 1 | pp2048 @ d8192 | 3140.84 ± 15.23 |
| gpt-oss 20B MXFP4 MoE | 11.27 GiB | 20.91 B | CUDA | 99 | 2048 | 1 | tg32 @ d8192 | 69.63 ± 2.31 |
| gpt-oss 20B MXFP4 MoE | 11.27 GiB | 20.91 B | CUDA | 99 | 2048 | 1 | pp2048 @ d16384 | 2657.65 ± 6.55 |
| gpt-oss 20B MXFP4 MoE | 11.27 GiB | 20.91 B | CUDA | 99 | 2048 | 1 | tg32 @ d16384 | 65.39 ± 0.07 |
| gpt-oss 20B MXFP4 MoE | 11.27 GiB | 20.91 B | CUDA | 99 | 2048 | 1 | pp2048 @ d32768 | 2032.37 ± 9.45 |
| gpt-oss 20B MXFP4 MoE | 11.27 GiB | 20.91 B | CUDA | 99 | 2048 | 1 | tg32 @ d32768 | 57.06 ± 0.08 |
The NVMe is rated for PCIe 4.0 so do note it will likely be slower than the Founder’s Edition equivalent, on top of being smaller in capacity. The disk used appears to be Phison according to information reported from nvme-cli, but is a unknown model (ESL01TBTLCZ-27J2-TYN). fio reports around 3.5~4.0GB/s sequential read throughput using 1MB block size.
[global]
ioengine=libaio
direct=1
size=10G
directory=./fio_test
runtime=30
time_based
group_reporting
filename=testfile
[sequential-read]
description=Sequential Read Test (128K blocks)
rw=read
bs=1m
numjobs=1
stonewa
fio disk_profile_1mb.fio
sequential-read: (g=0): rw=read, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=libaio, iodepth=1
fio-3.36
Starting 1 process
sequential-read: Laying out IO file (1 file / 10240MiB)
Jobs: 1 (f=1): [R(1)][100.0%][r=3959MiB/s][r=3959 IOPS][eta 00m:00s]
sequential-read: (groupid=0, jobs=1): err= 0: pid=3662: Sun Nov 2 11:23:26 2025
Description : [Sequential Read Test (128K blocks)]
read: IOPS=3778, BW=3779MiB/s (3962MB/s)(111GiB/30001msec)
slat (usec): min=22, max=359, avg=25.81, stdev= 4.77
clat (usec): min=186, max=1566, avg=237.80, stdev=43.41
lat (usec): min=235, max=1788, avg=263.61, stdev=44.15
clat percentiles (usec):
| 1.00th=[ 212], 5.00th=[ 215], 10.00th=[ 217], 20.00th=[ 219],
| 30.00th=[ 219], 40.00th=[ 221], 50.00th=[ 223], 60.00th=[ 229],
| 70.00th=[ 239], 80.00th=[ 243], 90.00th=[ 297], 95.00th=[ 310],
| 99.00th=[ 392], 99.50th=[ 545], 99.90th=[ 652], 99.95th=[ 750],
| 99.99th=[ 1037]
bw ( MiB/s): min= 2425, max= 4063, per=100.00%, avg=3787.71, stdev=311.29, samples=59
iops : min= 2425, max= 4063, avg=3787.54, stdev=311.33, samples=59
lat (usec) : 250=85.74%, 500=13.64%, 750=0.57%, 1000=0.04%
lat (msec) : 2=0.01%
cpu : usr=0.20%, sys=12.34%, ctx=113377, majf=0, minf=267
IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued rwts: total=113366,0,0,0 short=0,0,0,0 dropped=0,0,0,0
latency : target=0, window=0, percentile=100.00%, depth=1
Run status group 0 (all jobs):
READ: bw=3779MiB/s (3962MB/s), 3779MiB/s-3779MiB/s (3962MB/s-3962MB/s), io=111GiB (119GB), run=30001-30001msec
Disk stats (read/write):
nvme0n1: ios=902260/101, sectors=230978560/1600, merge=0/95, ticks=154508/28, in_queue=154536, util=87.74%
Software is mostly identical to DGX Spark except for some minor alterations by Asus (e.g. wallpaper).
The power adapter is 240W (PD3.1), so nothing overwhelmingly special about it.