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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 33 fields comparable

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SpecNVIDIA DGX SparkAMD Instinct MI325X
Bf16 Matrix Tflops Dense1,307.4
Compute Units304
CPU Breakdown10x Arm Cortex-X925 + 10x Arm Cortex-A725
CPU Cores Total20
Dimensions MM150 x 150 x 50.5
Ethernet1x 10 GbE RJ-45
Form factorOAM
Fp16 Matrix Tflops Dense1,307.4
Fp32 Vector Tflops163.4
FP4 Pflops Sparse1
Fp64 Matrix Tflops163.4
FP8 Matrix Tflops Dense2,614.9
FP8 Matrix Tflops Sparse5,229.8
Gb10 TDP Watts140
GPU ArchBlackwell, 5th-gen Tensor Cores, 4th-gen RT Cores
HBM (GB)256
HBM TypeHBM3E
INT8 TOPS (dense)2,614.9
Memory bandwidth (GB/s)273
Memory bandwidth (TB/s)6
Memory Interface BIT256
Memory typeLPDDR5X
MSRP (USD)↓ better4,699
NICConnectX-7 @ 200 Gbps
Pcie GEN5
PSU Watts240
Storage4TB NVMe M.2 self-encrypting
SuperchipNVIDIA GB10 Grace Blackwell
TBP Watts1,000
Tf32 Matrix Tflops Dense653.7
Unified Memory GB128
Weight KG1.2
WirelessWi-Fi 7, Bluetooth 5.4
Compare · NVIDIA DGX Spark vs AMD Instinct MI325X · MadCoolStuff