H200 vs RTX A6000

HoppervsAmpereUpdated 36 days ago

The H200 emerges as the superior choice for prevalent AI and HPC use cases. Its 141 GB VRAM and 4800 GB/s bandwidth handle large-scale training and inference infeasible on the A6000's 48 GB and 768 GB/s, while 1979 TFLOPS FP16 delivers unmatched acceleration despite higher $3.62 per hour average cost.

H200 from $1.99/hrRTX A6000 from $0.40/hr

Specifications Compared

SpecH200RTX-A6000
TDP700W300W
VRAM141 GB48 GB
CUDA Cores16,89610,752
Memory TypeHBM3eGDDR6
ArchitectureHopperAmpere
Form FactorsSXM, NVLPCIe
InterconnectNVLink, PCIe 5.0, InfiniBandNVLink
Tensor Cores528336
FP8 Performance3,958 TFLOPS
FP16 Performance1,979 TFLOPS38.7 TFLOPS
FP32 Performance67 TFLOPS38.7 TFLOPS
FP64 Performance34 TFLOPS0.6 TFLOPS
INT8 Performance3,958 TOPS
Memory Bandwidth4,800 GB/s768 GB/s

Performance Analysis

Compute specifications reveal profound implications for machine learning workflows. The H200's FP16 performance reaches 1979 TFLOPS, over 51 times the A6000's 38.7 TFLOPS, accelerating mixed-precision training and inference for large language models. FP32 throughput on the H200 stands at 67 TFLOPS, surpassing the A6000's 38.7 TFLOPS, which benefits traditional scientific simulations requiring single-precision arithmetic. The H200's FP8 capability of 3958 TFLOPS introduces efficiency for quantized inference not matched by the A6000. Memory bandwidth profoundly affects batch sizes: the H200's 4800 GB/s supports larger batches in training, reducing iterations and time, whereas the A6000's 768 GB/s limits scalability for datasets exceeding 48 GB VRAM. Power consumption differs markedly, with the H200 at 700W TDP versus the A6000's 300W, influencing deployment in power-constrained environments. Interconnects favor the H200's NVLink, PCIe 5.0, and InfiniBand for multi-GPU scaling over the A6000's NVLink alone.

Live Cloud Pricing

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

H200

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
Vultr
Vultr
NVIDIA GH200 Grace Hopper
96GB VRAM
$1.99/GPU/hr
Available
Lambda Labs
Lambda Labs
NVIDIA GH200 Grace Hopper
96GB VRAM
$2.29/GPU/hr
Available
Nebius
Nebius
NVIDIA H200 SXM
141GB VRAM
$2.45/GPU/hr
CoreWeave
CoreWeave
8×NVIDIA H200 SXM
141GB VRAM
$2.58/GPU/hr
$20.64/hr total (8×)
Ori
Ori
4×NVIDIA H200 SXM
141GB VRAM
$3.50/GPU/hr
$14.00/hr total (4×)
Available

RTX A6000

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
TensorDock
TensorDock
NVIDIA RTX A6000
48GB VRAM
$0.40/GPU/hr
Available
RunPod
RunPod
NVIDIA RTX A6000
48GB VRAM
$0.49/GPU/hr
Hyperstack
Hyperstack
NVIDIA RTX A6000
48GB VRAM
$0.50/GPU/hr
Available
Hyperstack
Hyperstack
2×NVIDIA RTX A6000
48GB VRAM
$0.50/GPU/hr
$1.00/hr total (2×)
Available
Massed Compute
Massed Compute
NVIDIA RTX A6000
48GB VRAM
$0.55/GPU/hr
Available

Compare real-time pricing across 25+ providers

When to Choose the H200

Opt for the H200 in scenarios demanding extreme scale, such as training billion-parameter LLMs where 141 GB HBM3e VRAM accommodates full model loading without sharding. Its 4800 GB/s bandwidth sustains high-throughput data movement for massive batch sizes in distributed training across NVLink or InfiniBand clusters. Datacenter users prioritizing FP16 performance of 1979 TFLOPS excel in AI research requiring Hopper's latest tensor cores.

When to Choose the RTX A6000

Select the RTX A6000 for budget-conscious workloads fitting within 48 GB GDDR6, like fine-tuning mid-sized models or rendering in CAD pipelines. At $0.25 per hour starting price, it offers value for intermittent professional visualization where 38.7 TFLOPS FP16 suffices and 300W TDP fits edge or single-node setups. PCIe form factor simplifies integration in workstation clouds without multi-GPU complexity.

Use Cases

LLM Training
H200

The H200's 141 GB HBM3e VRAM and 1979 TFLOPS FP16 enable training of massive LLMs without model parallelism. Bandwidth of 4800 GB/s supports large batch sizes critical for efficient convergence.

LLM Inference
H200

FP8 performance of 3958 TFLOPS on the H200 optimizes quantized serving for high-throughput inference. 141 GB capacity loads entire models for low-latency responses.

Fine-tuning
Either

Mid-sized models fit the A6000's 48 GB VRAM at lower $1.06 per hour cost, but H200 accelerates with 67 TFLOPS FP32 for faster iterations on larger datasets.

Stable Diffusion
RTX A6000

The A6000's 38.7 TFLOPS FP16 handles image generation workloads within 48 GB VRAM efficiently. Lower 300W TDP and $0.25 per hour pricing suit creative prototyping.

Scientific Computing
H200

H200's 67 TFLOPS FP32 outperforms A6000's 38.7 TFLOPS for simulations, with 4800 GB/s bandwidth accelerating data-heavy HPC codes.

Frequently Asked Questions

What is the VRAM difference between H200 and RTX A6000?

The H200 provides 141 GB HBM3e VRAM, nearly three times the RTX A6000's 48 GB GDDR6. This allows the H200 to manage much larger AI models without offloading.

How do cloud prices compare for these GPUs?

H200 pricing starts at $0.50 per hour, averaging $3.62 per hour across 26 offers. RTX A6000 begins at $0.25 per hour, averaging $1.06 per hour over 58 offers.

Which has higher FP16 performance?

The H200 achieves 1979 TFLOPS in FP16, exceeding the RTX A6000's 38.7 TFLOPS by over 50 times. This gap favors H200 for deep learning acceleration.

What are the TDP ratings?

H200 consumes 700W TDP, while RTX A6000 uses 300W. Lower TDP on A6000 suits power-limited deployments.

Can RTX A6000 handle large LLMs?

RTX A6000's 48 GB VRAM limits it to models under that threshold, unlike H200's 141 GB. Techniques like quantization may extend usability but reduce efficiency.

What interconnects do they support?

H200 offers NVLink, PCIe 5.0, and InfiniBand for scaling. RTX A6000 supports NVLink in PCIe form factor.

Which is cheaper to rent, the H200 or the RTX A6000?

Cloud rental prices for both the H200 and RTX A6000 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 H200 have compared to the RTX A6000?

The H200 has 141 GB of HBM3e memory. The RTX A6000 has 48 GB of GDDR6 memory.

Can I find H200 and RTX A6000 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 H200 and the RTX A6000?

The H200 uses the Hopper architecture (2024) while the RTX A6000 uses Ampere (2020). The H200 delivers 51.1x the FP16 throughput and 6.3x the memory bandwidth of the RTX A6000.