B300 vs MI300X

Detailed comparison of specifications, performance, and pricing between B300 and MI300X

Comparing:
🏆
Overall Winner
MI300X
Wins 4 of 7 categories
Performance Leader
MI300X
653.7 TFLOPS (+0%)

Difference Analysis

Metric
B300
Difference
MI300X
Tensor TFLOPS
-
=
653.7
VRAM
288GB
+50%
192GB
Memory Bandwidth
-
=
5.3 TB/s
Hardware Price
-
=
$$18k
Cloud Price/hr
$7.39
+209%
$2.39

Full Specifications

Specification B300 MI300X
Brand NVIDIA AMD
Series - Data Center
Architecture - CDNA3
VRAM 288GB 192GB
VRAM Type - HBM3
Memory Bandwidth - 5.3 TB/s
FP16 TFLOPS - 653.7
Tensor TFLOPS - -
TDP - 750W
Form Factor - OAM
Hardware Price - $$18k
Cloud Price (min) $7.39/hr $2.39/hr

Which Should You Choose?

🧠

For AI Training

Large model training needs maximum VRAM and memory bandwidth.

Recommended: B300
288GB VRAM · -

For AI Inference

Inference prioritizes throughput and cost efficiency.

Recommended: MI300X
Best performance per dollar
☁️

For Cloud Rental

Minimize hourly costs for cloud workloads.

Recommended: MI300X
From $2.39/hr

B300 vs MI300X FAQ

It depends on your use case. The MI300X offers 0% better performance (653.7 vs - TFLOPS). For raw performance, choose MI300X. For value, consider your budget and workload requirements.

The B300 has more VRAM with 288GB compared to 192GB (50% more). More VRAM is crucial for training large models and running inference on bigger batch sizes.

For AI training, the B300 is generally better due to its larger VRAM (288GB). Large language models and deep learning workloads benefit significantly from more memory. However, if your models fit in 192GB, 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.

The MI300X actually offers 0% better performance. An "upgrade" to B300 would be a downgrade in raw performance, though it may offer other benefits like lower power consumption or cost.

Sponsored

Rent GPUs from RunPod or Vast.ai

Estimate cost first