B200 NVL vs MI300X

BlackwellvsCDNA 3Updated 35 days ago

NVIDIA B200 NVL emerges as the winner for the most common use case of LLM training and inference. Its 4500 TFLOPS FP16 and 9000 TFLOPS FP8 provide overwhelming advantages over MI300X's 1307 TFLOPS and 2614 TFLOPS, enabling faster iterations despite the higher $10.50 per hour pricing.

B200 NVL from $3.95/hrMI300X from $1.99/hr

Specifications Compared

SpecB200MI300X
TDP1000W750W
VRAM192 GB192 GB
CUDA Cores18,432
Memory TypeHBM3eHBM3
ArchitectureBlackwellCDNA 3
Form FactorsSXM, NVLOAM
InterconnectNVLink, PCIe 6.0, InfiniBandInfinity Fabric, PCIe 5.0
Tensor Cores576
FP8 Performance9,000 TFLOPS2,614 TFLOPS
FP16 Performance4,500 TFLOPS1,307 TFLOPS
FP32 Performance90 TFLOPS163 TFLOPS
FP64 Performance45 TFLOPS81.7 TFLOPS
INT8 Performance9,000 TOPS2,614 TOPS
Memory Bandwidth8,000 GB/s5,300 GB/s

Performance Analysis

B200's FP16 performance of 4500 TFLOPS vastly outpaces MI300X's 1307 TFLOPS, accelerating large language model training where half-precision computations dominate. This gap translates to faster convergence and shorter training cycles for massive datasets. In contrast, MI300X's higher FP32 rate of 163 TFLOPS over B200's 90 TFLOPS benefits tasks requiring full precision, such as certain simulations.

For inference, B200's FP8 capability at 9000 TFLOPS enables serving more queries per second compared to MI300X's 2614 TFLOPS, ideal for high-throughput deployments. Memory bandwidth plays a critical role: B200's 8000 GB/s supports larger batch sizes during training and inference, reducing latency from data movement bottlenecks that MI300X faces at 5300 GB/s.

Power draw differs with B200 at 1000W TDP versus MI300X's 750W, impacting cluster density and cooling needs. These specs position B200 for peak performance in AI accelerators, while MI300X offers balanced efficiency.

Live Cloud Pricing

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

B200 NVL

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
Nebius
Nebius
NVIDIA B200 SXM
192GB VRAM
$3.95/GPU/hr
Cirrascale
Cirrascale
8×NVIDIA B200 SXM
192GB VRAM
$4.79/GPU/hr
$38.32/hr total (8×)
Cirrascale
Cirrascale
8×NVIDIA B200 SXM
192GB VRAM
$5.39/GPU/hr
$43.12/hr total (8×)
Cirrascale
Cirrascale
8×NVIDIA B200 SXM
192GB VRAM
$5.69/GPU/hr
$45.52/hr total (8×)
RunPod
RunPod
NVIDIA B200 SXM
192GB VRAM
$5.89/GPU/hr

MI300X

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
RunPod
RunPod
AMD Instinct MI300X
192GB VRAM
$1.99/GPU/hr
Hot Aisle
Hot Aisle
AMD Instinct MI300X
192GB VRAM
$1.99/GPU/hr
Available
Cirrascale
Cirrascale
8×AMD Instinct MI300X
192GB VRAM
$3.08/GPU/hr
$24.64/hr total (8×)
Crusoe
Crusoe
AMD Instinct MI300X
192GB VRAM
$3.45/GPU/hr
Cirrascale
Cirrascale
8×AMD Instinct MI300X
192GB VRAM
$3.47/GPU/hr
$27.76/hr total (8×)

Compare real-time pricing across 25+ providers

When to Choose the B200 NVL

Opt for NVIDIA B200 NVL in scenarios demanding maximum compute throughput, such as training frontier-scale LLMs where 4500 TFLOPS FP16 and 9000 TFLOPS FP8 deliver up to 3.4 times faster performance than MI300X. Its 8000 GB/s bandwidth handles enormous models without stalling on large batches.

B200 excels in multi-GPU clusters via NVLink and PCIe 6.0, suiting research labs or enterprises prioritizing speed over cost at $10.50 per hour.

When to Choose the MI300X

Choose AMD Instinct MI300X for cost-sensitive applications, with pricing from $0.50 per hour averaging $2.63 across nine offers, providing strong value at 1307 TFLOPS FP16. Its lower 750W TDP enables denser deployments with reduced power costs.

MI300X suits FP32-heavy workloads like scientific computing, offering 163 TFLOPS versus B200's 90 TFLOPS, or inference where extreme FP8 speeds prove unnecessary.

Use Cases

LLM Training
B200 NVL

B200's 4500 TFLOPS FP16 significantly exceeds MI300X's 1307 TFLOPS, speeding up matrix-heavy training phases. Higher 8000 GB/s bandwidth supports larger models.

LLM Inference
B200 NVL

B200 achieves 9000 TFLOPS FP8 for superior query throughput compared to MI300X's 2614 TFLOPS. This handles high-volume serving efficiently.

Fine-tuning
B200 NVL

Fine-tuning benefits from B200's FP16 dominance at 4500 TFLOPS over 1307 TFLOPS, reducing iteration times on adapted models.

Stable Diffusion
B200 NVL

Image generation leverages B200's FP16 and FP8 peaks of 4500 TFLOPS and 9000 TFLOPS for faster diffusion steps than MI300X.

Scientific Computing
MI300X

MI300X's 163 TFLOPS FP32 outperforms B200's 90 TFLOPS, suiting precision simulations. Lower 750W TDP aids sustained workloads.

Frequently Asked Questions

Which GPU has higher FP16 performance?

NVIDIA B200 leads with 4500 TFLOPS FP16 compared to AMD MI300X's 1307 TFLOPS. This makes B200 better for AI training tasks. The difference can reduce training times substantially.

How do memory bandwidths compare?

B200 offers 8000 GB/s versus MI300X's 5300 GB/s. Higher bandwidth on B200 enables larger batch sizes in training. Both have 192 GB VRAM.

What is the pricing difference?

B200 NVL starts at $10.50 per hour average. MI300X begins at $0.50 per hour with $2.63 average across nine offers. MI300X provides better value for budget constraints.

Which has lower power consumption?

MI300X uses 750W TDP compared to B200's 1000W. This allows more GPUs per rack on MI300X. Efficiency favors MI300X in power-limited environments.

Is B200 or MI300X better for FP8 inference?

B200 delivers 9000 TFLOPS FP8 against MI300X's 2614 TFLOPS. B200 supports higher inference throughput. Use B200 for quantized model serving.

What interconnects do they support?

B200 includes NVLink, PCIe 6.0, and InfiniBand. MI300X uses Infinity Fabric and PCIe 5.0. B200 scales better in large clusters.

Which is cheaper to rent, the B200 or the MI300X?

Cloud rental prices for both the B200 and MI300X 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 B200 have compared to the MI300X?

The B200 has 192 GB of HBM3e memory. The MI300X has 192 GB of HBM3 memory.

Can I find B200 and MI300X 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 B200 and the MI300X?

The B200 uses the Blackwell architecture (2024) while the MI300X uses CDNA 3 (2023). The B200 delivers 3.4x the FP16 throughput and 1.5x the memory bandwidth of the MI300X.