NVIDIA A100 SXM4 80 GB vs NVIDIA A100 SXM4 40 GB

Comparative analysis of NVIDIA A100 SXM4 80 GB and NVIDIA A100 SXM4 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. Benchmark videocards performance analysis: Geekbench - OpenCL, GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps).

NVIDIA A100 SXM4 80 GB

NVIDIA A100 SXM4 40 GB

Differences

Reasons to consider the NVIDIA A100 SXM4 80 GB

Videocard is newer: launch date 6 month(s) later
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)
Around 1% better performance in Geekbench - OpenCL: 204643 vs 201849

Specifications (specs)
Launch date	16 Nov 2020 vs 14 May 2020
Maximum memory size	80 GB vs 40 GB
Memory clock speed	1593 MHz (3.2 Gbps effective) vs 1215 MHz (2.4 Gbps effective)
Benchmarks
Geekbench - OpenCL	204643 vs 201849

Compare benchmarks

GPU 1: NVIDIA A100 SXM4 80 GB
GPU 2: NVIDIA A100 SXM4 40 GB

Geekbench - OpenCL

GPU 1

GPU 2

204643

201849

Name	NVIDIA A100 SXM4 80 GB	NVIDIA A100 SXM4 40 GB
Geekbench - OpenCL	204643	201849
GFXBench 4.0 - Car Chase Offscreen (Frames)		21006
GFXBench 4.0 - Car Chase Offscreen (Fps)		21006
GFXBench 4.0 - Manhattan (Frames)		27823
GFXBench 4.0 - Manhattan (Fps)		27823
GFXBench 4.0 - T-Rex (Frames)		51880
GFXBench 4.0 - T-Rex (Fps)		51880

Compare specifications (specs)

	NVIDIA A100 SXM4 80 GB	NVIDIA A100 SXM4 40 GB
Essentials
Architecture	Ampere	Ampere
Code name	GA100	GA100
Launch date	16 Nov 2020	14 May 2020
Place in performance rating	33	12
Technical info
Boost clock speed	1410 MHz	1410 MHz
Core clock speed	1095 MHz	1095 MHz
Manufacturing process technology	7 nm	7 nm
Peak Double Precision (FP64) Performance	9.746 TFLOPS (1:2)	9.746 TFLOPS (1:2)
Peak Half Precision (FP16) Performance	77.97 TFLOPS (4:1)	77.97 TFLOPS (4:1)
Peak Single Precision (FP32) Performance	19.49 TFLOPS	19.49 TFLOPS
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	400 Watt
Transistor count	54200 million	54200 million
Video outputs and ports
Display Connectors	No outputs	No outputs
Compatibility, dimensions and requirements
Form factor	IGP	IGP
Interface	PCIe 4.0 x16	PCIe 4.0 x16
Recommended system power (PSU)	800 Watt	800 Watt
Supplementary power connectors	None	None
API support
OpenCL	3.0	3.0
Memory
High bandwidth memory (HBM)
Maximum RAM amount	80 GB	40 GB
Memory bandwidth	2039 GB/s	1555 GB/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