B300 SXM6 vs RTX 5880 Ada

Blackwell UltravsAda LovelaceUpdated 35 days ago

The B300 SXM6 emerges as the superior choice for prevalent AI workloads like LLM training and inference: 2250 TFLOPS FP16, 288 GB VRAM, and 12000 GB/s bandwidth deliver unmatched scale, justifying $6.44 per hour average cost over the RTX 5880 Ada's workstation limitations.

B300 SXM6 from $7.39/hr

Specifications Compared

SpecB300RTX-5880-ADA
TDP1200W285W
VRAM288 GB48 GB
Memory TypeHBM3eGDDR6
ArchitectureBlackwell UltraAda Lovelace
Form FactorsSXMPCIe
InterconnectNVSwitch, NVLink
FP8 Performance4,500 TFLOPS
FP16 Performance2,250 TFLOPS69.7 TFLOPS
FP32 Performance90 TFLOPS69.7 TFLOPS
FP64 Performance45 TFLOPS
INT8 Performance4,500 TOPS1,115 TOPS
Memory Bandwidth12,000 GB/s960 GB/s

Performance Analysis

The B300's FP16 performance reaches 2250 TFLOPS compared to the RTX 5880 Ada's 69.7 TFLOPS: this 32-fold gap accelerates deep learning training where half-precision computations dominate, reducing epoch times for models exceeding 48 GB VRAM. Its FP32 at 90 TFLOPS slightly outpaces the RTX 5880 Ada's 69.7 TFLOPS, benefiting precision-sensitive simulations, while FP8 at 4500 TFLOPS optimizes inference for quantized large language models.

Memory bandwidth defines large-batch feasibility: the B300's 12000 GB/s versus 960 GB/s enables processing datasets with minimal latency, supporting batch sizes up to 288 GB model footprints without swapping. The RTX 5880 Ada's 48 GB limits it to smaller models or inference at reduced scales. Power draw underscores deployment differences, with the B300 at 1200W TDP demanding liquid cooling in racks versus the RTX 5880 Ada's efficient 285W for desktops.

Interconnect advantages favor the B300: NVSwitch and NVLink scale multi-GPU training coherently, unlike the RTX 5880 Ada's lack of specified high-speed links, which constrains distributed workloads.

Live Cloud Pricing

Real-time prices from 25+ providers. Updated every 60 seconds.

B300 SXM6

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
RunPod
RunPod
NVIDIA B300 SXM6
262GB VRAM
$7.39/GPU/hr
VERDA
VERDA
8×NVIDIA B300 SXM6
262GB VRAM
$7.50/GPU/hr
$60.00/hr total (8×)
Available
Scaleway
Scaleway
8×NVIDIA B300 SXM6
262GB VRAM
$8.73/GPU/hr
$69.84/hr total (8×)
Available

Compare real-time pricing across 25+ providers

When to Choose the B300 SXM6

The B300 SXM6 excels in large-scale LLM training and inference: its 288 GB HBM3e VRAM accommodates models like 1T+ parameter behemoths, and 12000 GB/s bandwidth sustains high throughput. Enterprise users benefit from NVLink for multi-GPU clusters and cloud availability at $2.45 per hour starting price across seven providers.

When to Choose the RTX 5880 Ada

The RTX 5880 Ada suits individual developers or small teams prototyping AI workflows: 48 GB GDDR6 VRAM handles fine-tuning up to 70B models, with 69.7 TFLOPS FP16/FP32 and 285W TDP enabling easy PCIe integration in workstations. Its absence of live cloud offers implies on-premise affordability for non-datacenter needs.

Use Cases

LLM Training
B300 SXM6

The B300's 288 GB HBM3e VRAM and 2250 TFLOPS FP16 support massive parameter counts and large batches unattainable on the RTX 5880 Ada's 48 GB GDDR6.

LLM Inference
B300 SXM6

4500 TFLOPS FP8 and 12000 GB/s bandwidth on the B300 enable high-throughput serving of quantized models, surpassing the RTX 5880 Ada's 69.7 TFLOPS FP16.

Fine-tuning
B300 SXM6

B300 handles parameter-efficient fine-tuning on models over 48 GB with 90 TFLOPS FP32, while RTX 5880 Ada limits scale.

Stable Diffusion
RTX 5880 Ada

RTX 5880 Ada's 48 GB GDDR6 and 69.7 TFLOPS suffice for image generation pipelines on single nodes, with lower 285W TDP for workstations.

Scientific Computing
Either

B300 accelerates large simulations via 12000 GB/s bandwidth; RTX 5880 Ada fits smaller HPC tasks with balanced FP32 at 69.7 TFLOPS.

Frequently Asked Questions

What is the VRAM difference between NVIDIA B300 SXM6 and RTX 5880 Ada?

The B300 SXM6 offers 288 GB HBM3e VRAM. The RTX 5880 Ada provides 48 GB GDDR6. This sixfold capacity gap allows B300 to load vastly larger models.

How do FP16 performances compare?

B300 achieves 2250 TFLOPS FP16. RTX 5880 Ada delivers 69.7 TFLOPS FP16. The disparity speeds AI training by over 32 times on B300.

What are the memory bandwidth specs?

B300 provides 12000 GB/s. RTX 5880 Ada offers 960 GB/s. Higher bandwidth on B300 reduces latency for data-intensive workloads.

What are the TDP ratings?

B300 requires 1200W TDP for datacenter cooling. RTX 5880 Ada uses 285W TDP suitable for workstations. Power scales with compute capability.

Is cloud pricing available for these GPUs?

B300 SXM6 starts at $2.45 per hour, averaging $6.44 per hour over seven providers. No live cloud offers exist for RTX 5880 Ada.

What form factors do they use?

B300 employs SXM for rack-scale systems with NVLink. RTX 5880 Ada uses PCIe for desktop and workstation integration.

Which is cheaper to rent, the B300 or the RTX 5880 Ada?

Cloud rental prices for both the B300 and RTX 5880 Ada vary by provider, configuration, and availability. This page shows live pricing from 25+ providers updated every 60 seconds. Scroll to the Live Cloud Pricing section to compare current rates.

How much VRAM does the B300 have compared to the RTX 5880 Ada?

The B300 has 288 GB of HBM3e memory. The RTX 5880 Ada has 48 GB of GDDR6 memory.

Can I find B300 and RTX 5880 Ada GPUs available to rent right now?

Yes. This page shows real-time availability across 25+ cloud GPU providers. The Live Cloud Pricing section displays only in-stock offers with current pricing.

What is the main difference between the B300 and the RTX 5880 Ada?

The B300 uses the Blackwell Ultra architecture (2025) while the RTX 5880 Ada uses Ada Lovelace (2024). The B300 delivers 32.3x the FP16 throughput and 12.5x the memory bandwidth of the RTX 5880 Ada.

B300 SXM6 vs RTX 5880 Ada: 32.3x FP16 Gap, 288GB vs 48GB | GPUPerHour