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MCS · Rigs · Compare

Side-by-side, with the numbers that matter.

Two rigs, one table. Higher numbers win in cobalt; TDP and price flip.

0 of 23 fields comparable

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SpecOpenAI GPT-5NVIDIA H100
BF16 TFLOPS (sparse)—1,979
Codex Synergy Precision Bonus12—
Form factor—SXM
FP16 TFLOPS (dense)—989.5
FP16 TFLOPS (sparse)—1,979
FP32 TFLOPS—67
FP64 Tensor TFLOPS—67
FP64 TFLOPS—34
FP8 TFLOPS (dense)—1,979
FP8 TFLOPS (sparse)—3,958
Gpt5 Context Window Tokens K400—
Gpt5 Input PER 1M USD1.25—
Gpt5 Output PER 1M USD10—
Gpt5 Snapshotgpt-5-2025-08-07—
Gpt6 Astra Launch2026-09-03—
HBM (GB)—80
INT8 TOPS (sparse)—3,958
Memory bandwidth (TB/s)—3.35
Memory type—HBM3
NVLink bandwidth (GB/s)—900
TDP max (W)↓ better—700
TF32 TFLOPS (sparse)—989
Version Major5—