B300 SXM6 vs RTX 2080 Ti

Blackwell UltravsTuringUpdated 35 days ago

The B300 SXM6 emerges as the clear winner for prevalent AI and ML use cases: 2250 TFLOPS FP16 and 288 GB VRAM enable efficient large-model training and inference unattainable on RTX 2080 Ti's 10.1 TFLOPS and 11 GB. Despite $2.45 per hour versus $0.06 per hour, performance density delivers superior value in cloud scaling.

B300 SXM6 from $7.39/hrRTX 2080 Ti from $0.13/hr

Specifications Compared

SpecB300RTX-2080
TDP1200W215W
VRAM288 GB8-11 GB
Memory TypeHBM3eGDDR6
ArchitectureBlackwell UltraTuring
Form FactorsSXMPCIe
InterconnectNVSwitch, NVLinkNVLink
FP8 Performance4,500 TFLOPS
FP16 Performance2,250 TFLOPS10.1 TFLOPS
FP32 Performance90 TFLOPS10.1 TFLOPS
FP64 Performance45 TFLOPS
INT8 Performance4,500 TOPS
Memory Bandwidth12,000 GB/s616 GB/s

Performance Analysis

Compute disparities define these GPUs' capabilities: the B300 achieves 2250 TFLOPS in FP16 for accelerated AI training and inference, far exceeding the RTX 2080 Ti's 10.1 TFLOPS. This delta enables the B300 to process massive models in hours that would take days on the older card. FP32 performance at 90 TFLOPS on B300 versus 10.1 TFLOPS supports general simulations better, though the ratio shrinks. The B300's FP8 at 4500 TFLOPS further optimizes low-precision inference for LLMs. Memory specs amplify real-world impacts: 288 GB HBM3e on B300 sustains large batch sizes in training, avoiding out-of-memory errors common with RTX 2080 Ti's 11 GB limit. Bandwidth of 12000 GB/s versus 616 GB/s ensures rapid data throughput, reducing bottlenecks in data-heavy workloads like fine-tuning. Power draw reflects scale: B300's 1200W TDP suits dense clusters, while 215W fits edge or desktop use.

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
Scaleway
Scaleway
8×NVIDIA B300 SXM6
262GB VRAM
$8.73/GPU/hr
$69.84/hr total (8×)
Available

RTX 2080 Ti

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
Vast.ai
Vast.ai
NVIDIA GeForce RTX 2080 Ti
11GB VRAM
$0.13/GPU/hr
Available

Compare real-time pricing across 25+ providers

When to Choose the B300 SXM6

Opt for the B300 SXM6 in large-scale AI deployments: its 288 GB VRAM handles billion-parameter LLMs, and 2250 TFLOPS FP16 speeds training epochs dramatically. Scenarios include enterprise inference serving or multi-GPU clusters via NVSwitch and NVLink, where 12000 GB/s bandwidth maximizes throughput. At $2.45 per hour starting price, it justifies costs for production workloads demanding HBM3e capacity.

When to Choose the RTX 2080 Ti

Select the RTX 2080 Ti for cost-sensitive prototyping: 8 to 11 GB VRAM suffices for small models, and $0.06 per hour pricing enables extended experimentation. It excels in gaming, light Stable Diffusion, or personal fine-tuning where 10.1 TFLOPS FP16 meets needs without overkill. PCIe form factor and 215W TDP integrate easily into single-node setups.

Use Cases

LLM Training
B300 SXM6

B300's 288 GB VRAM and 2250 TFLOPS FP16 support massive datasets and models. RTX 2080 Ti's 11 GB limit causes frequent failures.

LLM Inference
B300 SXM6

4500 TFLOPS FP8 and 12000 GB/s bandwidth on B300 enable high-throughput serving. RTX 2080 Ti struggles with batch sizes beyond small queries.

Fine-tuning
B300 SXM6

90 TFLOPS FP32 and vast HBM3e handle parameter-efficient methods on large LLMs. RTX 2080 Ti restricts to tiny adapters due to VRAM.

Stable Diffusion
RTX 2080 Ti

RTX 2080 Ti's 10.1 TFLOPS FP16 generates images quickly at $0.06 per hour. B300 overpowers simple diffusion needs.

Scientific Computing
B300 SXM6

B300's 90 TFLOPS FP32 and NVLink scaling accelerate simulations. RTX 2080 Ti limits complex datasets with 616 GB/s bandwidth.

Frequently Asked Questions

How much more VRAM does B300 have than RTX 2080 Ti?

B300 provides 288 GB HBM3e VRAM, over 26 times the RTX 2080 Ti's maximum 11 GB GDDR6. This enables handling models up to hundreds of billions of parameters. RTX 2080 Ti suits only sub-7B models comfortably.

What is the FP16 performance difference?

B300 delivers 2250 TFLOPS FP16, approximately 223 times the RTX 2080 Ti's 10.1 TFLOPS. Training speeds scale near-linearly with this gap. Inference batches fit vastly larger on B300.

Compare their cloud pricing.

B300 SXM6 starts at $2.45 per hour, averaging $6.44 across 7 offers. RTX 2080 Ti begins at $0.06 per hour, averaging $0.11 over 6 offers. Budget tasks favor the latter despite performance trade-offs.

Which has higher memory bandwidth?

B300 achieves 12000 GB/s, about 19 times the RTX 2080 Ti's 616 GB/s. This reduces data stalls in AI pipelines. Bandwidth limits batch sizes on older cards.

What are their TDPs?

B300 requires 1200W TDP for peak output in SXM form. RTX 2080 Ti uses 215W in PCIe slots. Datacenter cooling suits B300; desktops handle 2080 Ti easily.

Can RTX 2080 Ti run modern LLMs?

RTX 2080 Ti's 11 GB VRAM supports quantized 7B LLMs at low batches with 10.1 TFLOPS FP16. Larger models exceed memory. B300 runs unquantized 70B+ effortlessly.

Which is cheaper to rent, the B300 or the RTX 2080?

Cloud rental prices for both the B300 and RTX 2080 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 2080?

The B300 has 288 GB of HBM3e memory. The RTX 2080 has 8 to 11 GB of GDDR6 memory.

Can I find B300 and RTX 2080 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 2080?

The B300 uses the Blackwell Ultra architecture (2025) while the RTX 2080 uses Turing (2018). The B300 delivers 222.8x the FP16 throughput and 19.5x the memory bandwidth of the RTX 2080.

B300 SXM6 vs RTX 2080 Ti: 222.8x FP16 Gap, 288GB vs 11GB | GPUPerHour