runaiicloud
ModelsAppsGPUsServerless GPUPricingReserveDocsConnectCompareEnterprise
Log inGet started
Home/GPUs/8× NVIDIA B300 288GB
DIEHBMINTERPOSERNVSWITCHSUBSTRATESUBSTRATE · POWER & THERMALINTERPOSER · NVLink-C2C FABRICHBMHBMHBMHBMB300FP8 · 8×NVSWITCH

Full Precision · FP8

8× NVIDIA B300 288GB

$96/hr $0.0267/sec · $70,080/mo at 24/7

Max quality for frontier dense models. Frontier dense models, 1M-ctx serving.

VRAM pool

288GB ×8 = 2.3TB

Position

vs H100 8×: ~2× tokens/$ on MoE

Deploy this →Configure sizeCompare providers →

What you're renting

Compute die

NVIDIA B300 288GB — FP8 tensor cores, tuned for frontier dense models, 1m-ctx serving.

HBM3e memory

2,304 GB of HBM3e across the 8 GPUs.

NVLink 5 interconnect

NVLink 5 across the 8 GPUs — one memory domain.

Per-second metering

$96/hr → 0.0267/sec. Pause the deployment and the meter hits $0.

Scale-to-zero

Autoscale + region pins (GLOBAL / US / EU / APAC) on the control plane.

Reserve it in minutesDeploy →

What fits here

Memory budget

2,304 GB of VRAM on this preset. Pooled HBM keeps frontier dense models and 1T-class checkpoints resident (rule of thumb: about one byte per parameter at FP8).

Typical loads

frontier dense-model serving at max quality, jumbo-batch inference. Fine on: torch, JAX, raw CUDA, axolotl, vLLM, sglang, ComfyUI.

Billing math

$96/hr is $0.0267/sec while running and $0 while parked; park/wake freezes and restores state instead of paying for idle.

Sizing this preset

Best fit

2,304 GB across eight B300 288 GB cards on NVLink 5 at $96/hr, $12 per GPU-hour. The catalog's note for this row is max quality for frontier dense models, and it is the FP8 row of the 8-card tier: at one byte per parameter a 1T-parameter dense checkpoint is ~1 TB of weights, leaving about 1.3 TB of the 2,304 GB pool for KV cache and batch (rule of thumb).

Trade-off

gb300-16x-fp8 is $184/hr — about 1.9× the hourly — for 16 GB300 GPUs and 4,608 GB, still FP8 and slightly cheaper per GPU-hour: $11.50 against $12. The step up doubles the cards and the memory pool, and it is the only catalog row that adds a Grace CPU memory domain over NVLink-C2C.

Questions about this preset

What does the Full Precision preset (8× NVIDIA B300 288GB) cost per hour?

$96/hr on runaii.cloud, metered per second: $0.0267/sec while the VM runs and $0 while parked. A month of 24/7 uptime would be about $70,080, and park/wake means busy-fraction pricing in practice.

Is the Full Precision (8× NVIDIA B300 288GB) billed by the second?

Yes. Per-second metering with park/wake: idle freezes the VM state into a signed artifact and stops the meter the same second; the next request wakes it byte-exact

What fits on the Full Precision (8 GPUs pooled)?

2,304 GB of VRAM. Pooled HBM keeps frontier dense models and 1T-class checkpoints resident (rule of thumb: about one byte per parameter at FP8).

How much HBM does b300-8x-fp8 have?

2,304 GB — eight 288 GB B300 cards on NVLink 5, $96/hr, $12 per GPU-hour.

Why FP8 instead of NVFP4?

The catalog lists the 8-card B300 row at FP8 and the 4-card B300 row at NVFP4; FP8 is the higher-precision of the two catalogued modes and this row carries the max-quality note for frontier dense models.

What fits in 2.3 TB?

At FP8 and one byte per parameter, a 1T-parameter checkpoint is ~1 TB of weights with about 1.3 TB of the 2,304 GB pool left for KV cache and batching (rule of thumb).

Sizing ladder

RTX PRO 6000 slices

from $0.30/hr · 12-48GB

Blackwell slices for light jobs

1× NVIDIA T4 16GB

$0.44/hr · FP16

Starter

1× NVIDIA L4 24GB

$0.87/hr · FP8

Efficient

2× NVIDIA L4 24GB

$1.8/hr · FP8

Efficient ×2

4× NVIDIA L4 24GB

$3.6/hr · FP8

Efficient ×4

8× NVIDIA L4 24GB

$7.2/hr · FP8

Efficient ×8

1× NVIDIA RTX PRO 6000 Blackwell 96GB

$2.4/hr · FP8

Workstation

2× NVIDIA RTX PRO 6000 Blackwell 96GB

$4.8/hr · FP8

Workstation ×2

4× NVIDIA RTX PRO 6000 Blackwell 96GB

$9.6/hr · FP8

Workstation ×4

8× NVIDIA RTX PRO 6000 Blackwell 96GB

$19.2/hr · FP8

Workstation ×8

8× NVIDIA B200 180GB

$80/hr · NVFP4

Throughput

4× NVIDIA B300 288GB

$48/hr · NVFP4

Minimal

4× NVIDIA B200 180GB

$40/hr · NVFP4

Efficient

16× NVIDIA GB300

$184/hr · FP8

Frontier Max

See all presets on /gpus →

runaiicloud

Serverless inference, dedicated GPUs, and training for open models. OpenAI- and Anthropic-compatible APIs.

© 2026 runaii

Platform

Model libraryAppsGPUsServerless GPUPricingToken-Max coding plansCompare providersDocs

Developers

ConnectCookbookCLIAgents / MCPUse casesTutorialsBlogFAQ

Company

EnterpriseStartupsAboutCareersTrust centerStatusSupportTermsPrivacyData policySubprocessorsSitemap