NVIDIA A40 vs NVIDIA A100 SXM4 40 GB

Comparative analysis of NVIDIA A40 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, PassMark - G2D Mark, PassMark - G3D Mark, 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 A40

NVIDIA A100 SXM4 40 GB

Differences

Reasons to consider the NVIDIA A40

Videocard is newer: launch date 4 month(s) later
Around 19% higher core clock speed: 1305 MHz vs 1095 MHz
Around 23% higher boost clock speed: 1740 MHz vs 1410 MHz
Around 56% higher pipelines: 10752 vs 6912
Around 33% lower typical power consumption: 300 Watt vs 400 Watt
Around 20% higher maximum memory size: 48 GB vs 40 GB
Around 49% higher memory clock speed: 1812 MHz (14.5 Gbps effective) vs 1215 MHz (2.4 Gbps effective)

Launch date	5 Oct 2020 vs 14 May 2020
Core clock speed	1305 MHz vs 1095 MHz
Boost clock speed	1740 MHz vs 1410 MHz
Pipelines	10752 vs 6912
Thermal Design Power (TDP)	300 Watt vs 400 Watt
Maximum memory size	48 GB vs 40 GB
Memory clock speed	1812 MHz (14.5 Gbps effective) vs 1215 MHz (2.4 Gbps effective)

Reasons to consider the NVIDIA A100 SXM4 40 GB

Around 4% higher texture fill rate: 609.1 GTexel/s vs 584.6 GTexel/s
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 7 nm vs 8 nm
Around 7% better performance in Geekbench - OpenCL: 201255 vs 187606

Specifications (specs)
Texture fill rate	609.1 GTexel/s vs 584.6 GTexel/s
Manufacturing process technology	7 nm vs 8 nm
Benchmarks
Geekbench - OpenCL	201255 vs 187606

Compare benchmarks

GPU 1: NVIDIA A40
GPU 2: NVIDIA A100 SXM4 40 GB

Geekbench - OpenCL

GPU 1

GPU 2

187606

201255

Name	NVIDIA A40	NVIDIA A100 SXM4 40 GB
Geekbench - OpenCL	187606	201255
PassMark - G2D Mark	589
PassMark - G3D Mark	13371
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 A40	NVIDIA A100 SXM4 40 GB
Essentials
Architecture	Ampere	Ampere
Code name	GA102	GA100
Launch date	5 Oct 2020	14 May 2020
Place in performance rating	60	12
Technical info
Boost clock speed	1740 MHz	1410 MHz
Core clock speed	1305 MHz	1095 MHz
Manufacturing process technology	8 nm	7 nm
Peak Double Precision (FP64) Performance	1169 GFLOPS (1:32)	9.746 TFLOPS (1:2)
Peak Half Precision (FP16) Performance	37.42 TFLOPS (1:1)	77.97 TFLOPS (4:1)
Peak Single Precision (FP32) Performance	37.42 TFLOPS	19.49 TFLOPS
Pipelines	10752	6912
Pixel fill rate	194.9 GPixel/s	225.6 GPixel/s
Texture fill rate	584.6 GTexel/s	609.1 GTexel/s
Thermal Design Power (TDP)	300 Watt	400 Watt
Transistor count	28300 million	54200 million
Video outputs and ports
Display Connectors	3x DisplayPort	No outputs
Compatibility, dimensions and requirements
Form factor	Dual-slot	IGP
Interface	PCIe 4.0 x16	PCIe 4.0 x16
Length	267 mm (10.5 inches)
Recommended system power (PSU)	700 Watt	800 Watt
Supplementary power connectors	8-pin EPS	None
Width	112 mm (4.4 inches)
API support
DirectX	12.2
OpenCL	3.0	3.0
OpenGL	4.6
Shader Model	6.6
Vulkan
Memory
Maximum RAM amount	48 GB	40 GB
Memory bandwidth	695.8 GB/s	1555 GB/s
Memory bus width	384 bit	5120 bit
Memory clock speed	1812 MHz (14.5 Gbps effective)	1215 MHz (2.4 Gbps effective)
Memory type	GDDR6	HBM2e
High bandwidth memory (HBM)