llmrun

NVIDIA · 8x H100 SXM5 · Server

Best AI Models for NVIDIA DGX H100 (640 GB)

Runs 70–120B models well.

640 GB unified26800 GB/s7915 TFLOPS FP1610200 W2022
Buyabout $482,000

What LLMs can the NVIDIA DGX H100 run?

#ModelSpeedVision ScoreQuant · Memory
1
Q4_K_M · 458.4 GB · 363 t/s
363 tok/sQ4_K_M · 458.4 GB
2
Q4_K_M · 458.4 GB · 363 t/s
363 tok/sQ4_K_M · 458.4 GB
3
Q4_K_M · 551.9 GB · 236 t/s
236 tok/sQ4_K_M · 551.9 GB
4
Q4_K_M · 205.2 GB · 321 t/s
321 tok/sQ4_K_M · 205.2 GB
5
Q4_K_M · 109.0 GB · 210 t/s
210 tok/sQ4_K_M · 109.0 GB
See all 440 models on the NVIDIA DGX H100 →Bars = traction for models without a Score yet

About the NVIDIA DGX H100

The NVIDIA DGX H100 runs 70–120B models well. Prompt reading is its weak spot: a 4K-token prompt waits 80 ms before the first word on DeepSeek V4.1 Flash 1017. At its $482,000 MSRP it gives 0.9 tok/s per $1,000, 6th of the 6 machines compared here. 8x H100 SXM5, released 2022.

For models640 GBall of it
Chip8x H100 SXM5released 2022

NVIDIA DGX H100 strengths and weaknesses

Strengths

  • Runs 120B MoE models: GPT OSS 120B at 459 tok/s in 70.8 GB
  • Room for long context: Llama 3.3 70B Instruct at Q4 uses 51.3 GB, leaving 588.7 GB free
  • Reads long prompts fast: A 32K-token prompt on DeepSeek V4.1 Flash 1017 starts answering in 660 ms

Memory for models

640 GB of 640 GB
120B MoE70.8 GB1020B614.1 GB
120B MoE70.8 GB1020B614.1 GB
For models 640 GBThe system keeps 0 GBModel size at Q4

Everything on the size ladder fits. MiMo V2.6 Flash RL and DeepSeek V4 Flash 0731 together use 369.5 GB and leave 270.5 GB free.

Speed per dollar and per watt

On Qwen3.6 35B A3B (35B params, 3B active) at Q4_K_M. New means a shop price, either a street quote or the maker's own price; used is compared with used. The last two columns are the speed you get per $1,000 of price and per 100 W of power; higher is better. The NVIDIA DGX H100 has no current new price, so it is shown at its MSRP.

MachineNew pricetok/stok/s per $1,000tok/s per 100 W
about $5,376213
39.7
37.1
about $3,49964.2
18.3
44.3
about $5,59975.9
13.6
25.7
about $5,39967.8
12.6
–
about $9,49976.6
8.1
28.4
DGX H100640 GB
about $482,000423
0.9
4.1
MachineUsed pricetok/stok/s per $1,000tok/s per 100 W
about $3,000151
50.3
33.6
about $6,400213
33.3
37.1

Cost per token: the NVIDIA DGX H100 against 24–640 GB machines and GPUs

On Qwen3.6 35B A3B (35B params, 3B active, Q4_K_M, 4K context). Speed, cost per token and power per token depend on the model.

24–36 GB96–128 GB192+ GBthis serverat MSRP
Cost per 1M output tokenson Qwen3.6 35B A3B · card over 3 years + power
$73.34
Machine, MSRP
$72.33
Power
$1.01
3-year cost of ownership$488,701
Include card price

Each dot is a machine or GPU; hover or tap it for its numbers, click to open it. Machines without a price for the chosen basis are left out. Machines without a published power figure are left out of Per watt and costed without power. How we calculate cost per token

Similar devices and alternatives

The same chip from other makers first, then machines and GPUs people weigh against it, each with the one reason it is worth a look. Speeds on Qwen3.6 35B A3B.

NVIDIA DGX H100 tokens per second by model size

Output speed depends on memory bandwidth (26800 GB/s). Grey rows need more than the 640 GB available.

  1. 9BQwen3.5 9B · Q4_K_M · 6.6 GB
    2739tok/s
  2. 14BQwen3 14B · Q4_K_M · 11.9 GB
    1834tok/s
  3. 27–31BQwen3.8 27B · Q4_K_M · 17.9 GB
    1000tok/s
  4. 35B MoEQwen3.6 35B A3B · Q4_K_M · 22.0 GB
    423tok/s
  5. 70BLlama 3.3 70B Instruct · Q4_K_M · 51.3 GB
    374tok/s
  6. 120B MoEGPT OSS 120B · Q4_K_M · 70.8 GB
    459tok/s

Estimated speeds: Q4_K_M, 4K context, one user. How we estimate

Unified-memory platforms: writing vs compute

Writing, tok/sCompute, TFLOPS
  1. M3 Ultra512 GB · 819 GB/s
    76.6
    66
  2. 8x H100 SXM5640 GB · 26800 GB/s
    423
    7915

Machines with about the same memory bandwidth write at about the same speed; compute decides how fast prompts are read. Speeds on Qwen3.6 35B A3B.

All 440 models on the NVIDIA DGX H100

Featured only

Best quant that fits in 640 GB, ordered by llmrun Score. Fit grades how well it runs here, S best. How ranking works

LLM models compatible with NVIDIA DGX H100 — ranked by Score, recency and Fit
ModelVRAMScoreFit
Q4_K_M·363.4 t/s
458.4 GBS100, Runs great
DeepSeek V4.1 Flash
Q4_K_M·363.4 t/s
458.4 GBS100, Runs great
GLM 5.3
Q4_K_M·174.1 t/s
453.8 GBS98, Runs great
MiMo V2.6 Flash RL
Q4_K_M·316.7 t/s
186.5 GBS100, Runs great
Inkling Small
Q4_K_M·422.1 t/s
162.7 GBS100, Runs great
Step 5 Preview
Q4_K_M·164.4 t/s
407.5 GBS97, Runs great
Q4_K_M·236.3 t/s
551.9 GBS92, Runs great
Q4_K_M·208.4 t/s
378.4 GBS100, Runs great
Hy3
Q4_K_M·195.1 t/s
182.3 GBS100, Runs great
Inkling
Q4_K_M·235.1 t/s
575.0 GBS86, Runs great
Beam 1.0 501B A23B
Q4_K_M·272.6 t/s
304.0 GBS100, Runs great
Muse Glimmer 30B
Q4_K_M·949.8 t/s
19.6 GBS100, Runs great
GLM 5.3 Flash
Q4_K_M·321.3 t/s
205.2 GBS100, Runs great
Q4_K_M·302.2 t/s
183.0 GBS100, Runs great
Qwen3.8 27B
Q4_K_M·1000.0 t/s
17.9 GBS100, Runs great

NVIDIA DGX H100 specs and power

Specs

Chip
8x H100 SXM5
CPU cores
112
GPU cores
135,168
Unified memory
640 GB
For models
640 GB
Memory bandwidth
26800 GB/s
FP16 (dense)
7915.2 TFLOPS
Power
10200 W max
Released
2022-09-01
MSRP
$482,000

NVIDIA DGX H100 FAQ

Is the NVIDIA DGX H100 worth it for local LLMs in 2026?

At its $482,000 MSRP it gives 0.9 tok/s per $1,000 on Qwen3.6 35B A3B, 6th of the 6 machines compared here. It runs 70–120B models well.

How much memory is available for AI on the NVIDIA DGX H100?

All 640 GB can hold model weights.

What is the largest model the NVIDIA DGX H100 can run?

MiMo V2.6 Pro RL (1020B) is the largest at 4-bit or better: at Q4_K_M it uses 614.1 GB, 96% of the available memory, and runs at about 189 tok/s.

Can the NVIDIA DGX H100 run DeepSeek V4.1 Flash 1017?

Yes. DeepSeek V4.1 Flash 1017 fits at Q4_K_M, using 458.4 GB of the 640 GB available, and it is the best model that runs well on this machine.

How long does the NVIDIA DGX H100 take to read a long prompt?

On DeepSeek V4.1 Flash 1017, about 80 ms for a 4K-token prompt and 660 ms for a 32K-token document before the first word appears.