NVIDIA GRID A100A vs NVIDIA RTX A4000
We compared two Professional market GPUs: 48GB VRAM GRID A100A and 16GB VRAM RTX A4000 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GRID A100A 's Advantages
More VRAM (48GB vs 16GB)
Larger VRAM bandwidth (1866GB/s vs 448.0GB/s)
768 additional rendering cores
NVIDIA RTX A4000 's Advantages
Released 11 months late
Boost Clock has increased by 55% (1560MHz vs 1005MHz)
Lower TDP (140W vs 400W)
Score
Benchmark
FP32 (float)
GRID A100A
13.89 TFLOPS
RTX A4000
+38%
19.17 TFLOPS
Graphics Card
May 2020
Release Date
Apr 2021
GRID
Generation
Quadro Ampere
Professional
Type
Professional
PCIe 4.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
900 MHz
Base Clock
735 MHz
1005 MHz
Boost Clock
1560 MHz
1215 MHz
Memory Clock
1750 MHz
Memory
48GB
Memory Size
16GB
HBM2e
Memory Type
GDDR6
6144bit
Memory Bus
256bit
1866GB/s
Bandwidth
448.0GB/s
Render Config
-
-
-
108
SM Count
48
6912
Shading Units
6144
432
TMUs
192
192
ROPs
96
432
Tensor Cores
192
-
RT Cores
48
192 KB (per SM)
L1 Cache
128 KB (per SM)
48 MB
L2 Cache
4 MB
-
-
-
Theoretical Performance
193.0 GPixel/s
Pixel Rate
149.8 GPixel/s
434.2 GTexel/s
Texture Rate
299.5 GTexel/s
55.57 TFLOPS
FP16 (half)
19.17 TFLOPS
13.89 TFLOPS
FP32 (float)
19.17 TFLOPS
6.947 TFLOPS
FP64 (double)
299.5 GFLOPS
Board Design
400W
TDP
140W
800 W
Suggested PSU
300 W
No outputs
Outputs
4x DisplayPort 1.4a
None
Power Connectors
1x 6-pin
Graphics Processor
GA100
GPU Name
GA104
-
GPU Variant
GA104-875-A1
Ampere
Architecture
Ampere
TSMC
Foundry
Samsung
7 nm
Process Size
8 nm
54.2 billion
Transistors
17.4 billion
826 mm²
Die Size
392 mm²
Graphics Features
N/A
DirectX
12 Ultimate (12_2)
N/A
OpenGL
4.6
3.0
OpenCL
3.0
N/A
Vulkan
1.3
8.0
CUDA
8.6
N/A
Shader Model
6.7
