NVIDIA RTX 4000 Ada Generation vs NVIDIA A40 PCIe
We compared two Desktop platform GPUs: 20GB VRAM RTX 4000 Ada Generation and 48GB VRAM A40 PCIe to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA RTX 4000 Ada Generation 's Advantages
Released 2 years and 10 months late
Boost Clock has increased by 25% (2175MHz vs 1740MHz)
Lower TDP (130W vs 300W)
NVIDIA A40 PCIe 's Advantages
More VRAM (48GB vs 20GB)
Larger VRAM bandwidth (695.8GB/s vs 360.0GB/s)
4608 additional rendering cores
Score
Benchmark
FP32 (float)
RTX 4000 Ada Generation
26.73 TFLOPS
A40 PCIe
+39%
37.42 TFLOPS
Blender
RTX 4000 Ada Generation
+18%
4737
A40 PCIe
3990
Graphics Card
Aug 2023
Release Date
Oct 2020
Workstation Ada
Generation
Tesla
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
1500 MHz
Base Clock
1305 MHz
2175 MHz
Boost Clock
1740 MHz
2250 MHz
Memory Clock
1812 MHz
Memory
20GB
Memory Size
48GB
GDDR6
Memory Type
GDDR6
160bit
Memory Bus
384bit
360.0GB/s
Bandwidth
695.8GB/s
Render Config
-
-
-
48
SM Count
84
6144
Shading Units
10752
192
TMUs
336
64
ROPs
112
192
Tensor Cores
336
48
RT Cores
84
128 KB (per SM)
L1 Cache
128 KB (per SM)
48 MB
L2 Cache
6 MB
-
-
-
Theoretical Performance
139.2 GPixel/s
Pixel Rate
194.9 GPixel/s
417.6 GTexel/s
Texture Rate
584.6 GTexel/s
26.73 TFLOPS
FP16 (half)
37.42 TFLOPS
26.73 TFLOPS
FP32 (float)
37.42 TFLOPS
417.6 GFLOPS
FP64 (double)
584.6 GFLOPS
Board Design
130W
TDP
300W
300 W
Suggested PSU
700 W
4x DisplayPort 1.4a
Outputs
3x DisplayPort 1.4a
1x 16-pin
Power Connectors
8-pin EPS
Graphics Processor
AD104
GPU Name
GA102
-
-
-
Ada Lovelace
Architecture
Ampere
TSMC
Foundry
Samsung
5 nm
Process Size
8 nm
35.8 billion
Transistors
28.3 billion
294 mm²
Die Size
628 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.3
8.9
CUDA
8.6
6.8
Shader Model
6.6
