DGX Spark vs Quad 3090s Local AI Benchmarks - Best Rig for $4K?
Description: Nvidia has released the DGX Spark Local Ai "Supercomputer" and thanks to some great benchmarking from @lmsys-org we added to those results with my Quad 3090 Local AI Server on the same models and quants.
📊 AIO + GPU Price/Performance Tracker 👉 https://digitalspaceport.com/gpus
Quad 3090 Ryzen AI Rig Build Video w/cheaper components https://youtu.be/So7tqRSZ0s8 and Written Build Guide with all the Updated AI Rig Component Options and Benchmarks https://digitalspaceport.com/local-ai-home-server-build-at-high-end-3500-5000-price/
LMSys Blog https://lmsys.org/blog/2025-10-13-nvidia-dgx-spark/
Perf Sheet https://docs.google.com/spreadsheets/d/1SF1u0J2vJ-ou-R_Ry1JZQ0iscOZL8UKHpdVFr85tNLU/edit?gid=0#gid=0
LMSys Video https://youtu.be/-3r2woTQjec
🤖 QUAD 3090 Ryzen Local Ai Server Hardware
3090 24GB GPU (x4) https://geni.us/GPU3090
CPU R5 9600X https://geni.us/AMD-9600X-CPU
B650 Eagle AX MOBO https://geni.us/B650-Eagle-AX-MOBO
Peerless Assassin CPU Cooler https://geni.us/Peerless-Assassin
DDR5 64GB (32GBx2) G Skill RAM https://geni.us/DDR5_Trident_Z5_RAM
Cheap PCIe Risers https://geni.us/Cheap-PCIe-Risers
GPU Rack Frame https://geni.us/GPU_Rack_Frame
CORSAIR HX1500i PSU https://geni.us/Corsair_HX1500iPSU
OG QUAD 3090 EPYC RIG
Supermicro H12ssl-i MOBO (better option vs mz32-ar0) https://geni.us/MBD_H12SSL-I-O
Gigabyte MZ32-AR0 MOBO https://geni.us/mz32-ar0_motherboard
AMD 7V13 (newer, faster vs 7702) https://geni.us/EPYC_7V13_CPU
512GB (8x32GB) DDR4 2400 RAM https://geni.us/512GB-DDR4-LRDIMM
PCIe4 Risers (x4) https://geni.us/PCIe4_Riser_Cable
AMD SP3 Air Cooler (easier vs water cooler) https://geni.us/EPYC_SP3_COOLER
iCUE H170i water cooler https://geni.us/iCUE_H170i_Capellix
(sTRX4 fits SP3 and retention kit comes with the CAPELLIX)
4i SFF-8654 to 4i SFF-8654 (x4, not needed for H12SSL-i) https://geni.us/SFF8654_to_SFF8654
ARCTIC MX4 Thermal Paste https://geni.us/Arctic_ThermalPaste
Thermal GPU Pads https://geni.us/Kritical-Thermal-Pads
HDD Rack Screws for Fans https://geni.us/HDD_RackScrews
More Local AI GPU Options
5060ti 16GB GPU https://geni.us/5060Ti-16GB
AMD RX 9060 XT 16GB GPU https://geni.us/AMD-9060-XT-16GB
Ways to Support:
🚀 Join as a member for members-only content and extra perks https://www.youtube.com/c/digitalspaceport/join
☕ Buy Me a Coffee https://www.buymeacoffee.com/digitalspaceport
🔳 Patreon https://www.patreon.com/digitalspaceport
👍 Subscribe youtube.com/c/digitalspaceport?sub_confirmation=1
🌐 Check out the Website https://digitalspaceport.com
Chapters
0:00 NVIDIA DGX SPARK LOCAL AI
3:57 Gemma3 12b Q4
5:42 Gemma3 12b Q8
6:34 Gemma3 27b Q4
7:28 Gemma3 27b Q8
8:35 GPT-OSS 120b
10:56 GPT-OSS 20b
11:55 Qwen3 32b Q4
12:46 QWen3 32b q8
13:32 Local Ai Benchmark Analysis DGX Spark vs Quad 3090
*****
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When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
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📊 AIO + GPU Price/Performance Tracker 👉 https://digitalspaceport.com/gpus
Quad 3090 Ryzen AI Rig Build Video w/cheaper components https://youtu.be/So7tqRSZ0s8 and Written Build Guide with all the Updated AI Rig Component Options and Benchmarks https://digitalspaceport.com/local-ai-home-server-build-at-high-end-3500-5000-price/
LMSys Blog https://lmsys.org/blog/2025-10-13-nvidia-dgx-spark/
Perf Sheet https://docs.google.com/spreadsheets/d/1SF1u0J2vJ-ou-R_Ry1JZQ0iscOZL8UKHpdVFr85tNLU/edit?gid=0#gid=0
LMSys Video https://youtu.be/-3r2woTQjec
🤖 QUAD 3090 Ryzen Local Ai Server Hardware
3090 24GB GPU (x4) https://geni.us/GPU3090
CPU R5 9600X https://geni.us/AMD-9600X-CPU
B650 Eagle AX MOBO https://geni.us/B650-Eagle-AX-MOBO
Peerless Assassin CPU Cooler https://geni.us/Peerless-Assassin
DDR5 64GB (32GBx2) G Skill RAM https://geni.us/DDR5_Trident_Z5_RAM
Cheap PCIe Risers https://geni.us/Cheap-PCIe-Risers
GPU Rack Frame https://geni.us/GPU_Rack_Frame
CORSAIR HX1500i PSU https://geni.us/Corsair_HX1500iPSU
OG QUAD 3090 EPYC RIG
Supermicro H12ssl-i MOBO (better option vs mz32-ar0) https://geni.us/MBD_H12SSL-I-O
Gigabyte MZ32-AR0 MOBO https://geni.us/mz32-ar0_motherboard
AMD 7V13 (newer, faster vs 7702) https://geni.us/EPYC_7V13_CPU
512GB (8x32GB) DDR4 2400 RAM https://geni.us/512GB-DDR4-LRDIMM
PCIe4 Risers (x4) https://geni.us/PCIe4_Riser_Cable
AMD SP3 Air Cooler (easier vs water cooler) https://geni.us/EPYC_SP3_COOLER
iCUE H170i water cooler https://geni.us/iCUE_H170i_Capellix
(sTRX4 fits SP3 and retention kit comes with the CAPELLIX)
4i SFF-8654 to 4i SFF-8654 (x4, not needed for H12SSL-i) https://geni.us/SFF8654_to_SFF8654
ARCTIC MX4 Thermal Paste https://geni.us/Arctic_ThermalPaste
Thermal GPU Pads https://geni.us/Kritical-Thermal-Pads
HDD Rack Screws for Fans https://geni.us/HDD_RackScrews
More Local AI GPU Options
5060ti 16GB GPU https://geni.us/5060Ti-16GB
AMD RX 9060 XT 16GB GPU https://geni.us/AMD-9060-XT-16GB
Ways to Support:
🚀 Join as a member for members-only content and extra perks https://www.youtube.com/c/digitalspaceport/join
☕ Buy Me a Coffee https://www.buymeacoffee.com/digitalspaceport
🔳 Patreon https://www.patreon.com/digitalspaceport
👍 Subscribe youtube.com/c/digitalspaceport?sub_confirmation=1
🌐 Check out the Website https://digitalspaceport.com
Chapters
0:00 NVIDIA DGX SPARK LOCAL AI
3:57 Gemma3 12b Q4
5:42 Gemma3 12b Q8
6:34 Gemma3 27b Q4
7:28 Gemma3 27b Q8
8:35 GPT-OSS 120b
10:56 GPT-OSS 20b
11:55 Qwen3 32b Q4
12:46 QWen3 32b q8
13:32 Local Ai Benchmark Analysis DGX Spark vs Quad 3090
*****
As an Amazon Associate I earn from qualifying purchases.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
***** Close description
