H100 SXM vs AMD Radeon RX 7900 XT

Detailed comparison of specifications, performance, and pricing between NVIDIA H100 SXM and AMD Radeon RX 7900 XT

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Overall Winner
H100 SXM
Wins 4 of 7 categories
Performance Leader
H100 SXM
2.0k TFLOPS (+1803%)
The H100 SXM is 1803% faster.

Difference Analysis

Metric
H100 SXM
Difference
AMD Radeon RX 7900 XT
Tensor TFLOPS
2.0k
+1803%
104.0
VRAM
80GB
+300%
20GB
Memory Bandwidth
3.4 TB/s
+319%
800 GB/s
Hardware Price
$$32k
=
-
Cloud Price/hr
$2.10
=
-

Full Specifications

Specification H100 SXM AMD Radeon RX 7900 XT V100 FHHL
Brand NVIDIA AMD NVIDIA
Series Data Center Consumer -
Architecture Hopper RDNA 3 -
VRAM 80GB 20GB 16GB
VRAM Type HBM3 GDDR6 -
Memory Bandwidth 3.4 TB/s 800 GB/s -
FP16 TFLOPS 134.0 104.0 -
Tensor TFLOPS 2.0k - -
TDP 700W 315W -
Form Factor SXM - -
Hardware Price $$32k - -
Cloud Price (min) $2.10/hr - $0.190/hr

Which Should You Choose?

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For AI Training

Large model training needs maximum VRAM and memory bandwidth.

Recommended: H100 SXM
80GB VRAM · 3.4 TB/s

For AI Inference

Inference prioritizes throughput and cost efficiency.

Recommended: H100 SXM
Best performance per dollar

H100 SXM vs AMD Radeon RX 7900 XT FAQ

It depends on your use case. The H100 SXM offers 1803% better performance (2.0k vs 104.0 TFLOPS). For raw performance, choose H100 SXM. For value, consider your budget and workload requirements.

The H100 SXM has more VRAM with 80GB compared to 20GB (300% more). More VRAM is crucial for training large models and running inference on bigger batch sizes.

For AI training, the H100 SXM is generally better due to its larger VRAM (80GB). Large language models and deep learning workloads benefit significantly from more memory. However, if your models fit in 20GB, the cheaper option may be more cost-effective.

Price comparison requires both GPUs to have available pricing data. Check individual GPU pages for current market prices.

Upgrading to H100 SXM would give you 1803% more performance and 300% more VRAM. Consider if your workloads are bottlenecked by current GPU capabilities.