A800 PCIe 80 GB vs A100 SXM4 40 GB
AI GPUAI GPU
We compared two GPUs: 80GB VRAM A800 PCIe 80 GB and 40GB VRAM A100 SXM4 40 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
A800 PCIe 80 GB Advantages
Released 2 years and 6 months late
More VRAM (80GB vs 40GB)
Larger VRAM bandwidth (2039GB/s vs 1555GB/s)
Lower TDP (250W vs 400W)
Score
Benchmark
FP32 (float)
A800 PCIe 80 GB
19490
A100 SXM4 40 GB
19490
Blender
A800 PCIe 80 GB
+70%
3719
A100 SXM4 40 GB
2186
Graphics Card
Nov 2022
Release Date
May 2020
Ampere
Generation
Tesla Ampere
AI GPU
Type
AI GPU
PCIe 4.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
1065 MHz
Base Clock
1095 MHz
1410 MHz
Boost Clock
1410 MHz
1593 MHz
Memory Clock
1215 MHz
Memory
80GB
Memory Size
40GB
HBM2e
Memory Type
HBM2e
5120bit
Memory Bus
5120bit
2039GB/s
Bandwidth
1555GB/s
Render Config
108
SM Count
108
6912
Shading Units
6912
432
TMUs
432
160
ROPs
160
432
Tensor Cores
432
192 KB (per SM)
L1 Cache
192 KB (per SM)
80 MB
L2 Cache
40 MB
Theoretical Performance
225.6 GPixel/s
Pixel Rate
225.6 GPixel/s
609.1 GTexel/s
Texture Rate
609.1 GTexel/s
77.97 TFLOPS
FP16 (half)
77.97 TFLOPS
19.49 TFLOPS
FP32 (float)
19.49 TFLOPS
9.746 TFLOPS
FP64 (double)
9.746 TFLOPS
Board Design
250W
TDP
400W
600 W
Suggested PSU
800 W
No outputs
Outputs
No outputs
8-pin EPS
Power Connectors
None
Graphics Processor
GA100
GPU Name
GA100
Ampere
Architecture
Ampere
TSMC
Foundry
TSMC
7 nm
Process Size
7 nm
54.2 billion
Transistors
54.2 billion
826 mm²
Die Size
826 mm²
Graphics Features
N/A
DirectX
N/A
N/A
OpenGL
N/A
3.0
OpenCL
3.0
N/A
Vulkan
N/A
8.0
CUDA
8.0
N/A
Shader Model
N/A