NVIDIA A800 SXM4 80 GB vs NVIDIA A800 PCIe 40 GB

Comparative analysis of NVIDIA A800 SXM4 80 GB and NVIDIA A800 PCIe 40 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 A800 SXM4 80 GB

NVIDIA A800 PCIe 40 GB

Differences

Reasons to consider the NVIDIA A800 SXM4 80 GB

Around 51% higher core clock speed: 1155 MHz vs 765 MHz
2x more maximum memory size: 80 GB vs 40 GB
Around 31% higher memory clock speed: 1593 MHz, 3.2 Gbps effective vs 1215 MHz, 2.4 Gbps effective

Core clock speed	1155 MHz vs 765 MHz
Maximum memory size	80 GB vs 40 GB
Memory clock speed	1593 MHz, 3.2 Gbps effective vs 1215 MHz, 2.4 Gbps effective

Reasons to consider the NVIDIA A800 PCIe 40 GB

Videocard is newer: launch date 2 month(s) later
Around 60% lower typical power consumption: 250 Watt vs 400 Watt

Launch date	8 Nov 2022 vs 11 Aug 2022
Thermal Design Power (TDP)	250 Watt vs 400 Watt

Compare specifications (specs)

	NVIDIA A800 SXM4 80 GB	NVIDIA A800 PCIe 40 GB
Essentials
Architecture	Ampere	Ampere
Code name	GA100	GA100
Launch date	11 Aug 2022	8 Nov 2022
Place in performance rating	not rated	not rated
Technical info
Boost clock speed	1410 MHz	1410 MHz
Core clock speed	1155 MHz	765 MHz
Manufacturing process technology	7 nm	7 nm
Pipelines	6912	6912
Pixel fill rate	225.6 GPixel/s	225.6 GPixel/s
Texture fill rate	609.1 GTexel/s	609.1 GTexel/s
Thermal Design Power (TDP)	400 Watt	250 Watt
Transistor count	54200 million	54200 million
Video outputs and ports
Display Connectors	No outputs	No outputs
Compatibility, dimensions and requirements
Form factor	SXM Module	Dual-slot
Interface	PCIe 4.0 x16	PCIe 4.0 x16
Recommended system power (PSU)	800 Watt	600 Watt
Supplementary power connectors	None	8-pin EPS
Length		267 mm, 10.5 inches
Width		111 mm, 4.4 inches
API support
OpenCL	3.0	3.0
Memory
Maximum RAM amount	80 GB	40 GB
Memory bandwidth	2.04 TB/s	1.56 TB/s
Memory bus width	5120 bit	5120 bit
Memory clock speed	1593 MHz, 3.2 Gbps effective	1215 MHz, 2.4 Gbps effective
Memory type	HBM2e	HBM2e