NVIDIA H100 SXM5 80 GB vs NVIDIA H100 SXM5 64 GB

Comparative analysis of NVIDIA H100 SXM5 80 GB and NVIDIA H100 SXM5 64 GB videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory.

NVIDIA H100 SXM5 80 GB

NVIDIA H100 SXM5 64 GB

Differences

Reasons to consider the NVIDIA H100 SXM5 80 GB

Around 25% higher maximum memory size: 80 GB vs 64 GB

Maximum memory size	80 GB vs 64 GB

Reasons to consider the NVIDIA H100 SXM5 64 GB

Around 5% higher core clock speed: 1665 MHz vs 1590 MHz

Core clock speed	1665 MHz vs 1590 MHz

Compare specifications (specs)

	NVIDIA H100 SXM5 80 GB	NVIDIA H100 SXM5 64 GB
Essentials
Architecture	Hopper	Hopper
Code name	GH100	GH100
Launch date	22 Mar 2022	22 Mar 2022
Place in performance rating	not rated	not rated
Technical info
Boost clock speed	1980 MHz	1980 MHz
Core clock speed	1590 MHz	1665 MHz
Manufacturing process technology	4 nm	4 nm
Pipelines	16896	16896
Pixel fill rate	47.52 GPixel/s	47.52 GPixel/s
Texture fill rate	1,045 GTexel/s	1,045 GTexel/s
Thermal Design Power (TDP)	700 Watt	700 Watt
Transistor count	80000 million	80000 million
Video outputs and ports
Display Connectors	No outputs	No outputs
Compatibility, dimensions and requirements
Form factor	SXM Module	SXM Module
Interface	PCIe 5.0 x16	PCIe 5.0 x16
Recommended system power (PSU)	1100 Watt	1100 Watt
Supplementary power connectors	8-pin EPS	8-pin EPS
API support
OpenCL	3.0	3.0
Memory
Maximum RAM amount	80 GB	64 GB
Memory bandwidth	1,681 GB/s	1,008 GB/s
Memory bus width	5120 bit	3072 bit
Memory clock speed	1313 MHz, 2.6 Gbps effective	1313 MHz, 2.6 Gbps effective
Memory type	HBM3	HBM3