RTX A4000 vs L40
We compared two Professional market GPUs: 16GB VRAM RTX A4000 and 48GB VRAM L40 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
RTX A4000 's Advantages
Lower TDP (140W vs 300W)
L40 's Advantages
Released 1 years and 6 months late
Boost Clock has increased by 60% (2490MHz vs 1560MHz)
More VRAM (48GB vs 16GB)
Larger VRAM bandwidth (864.0GB/s vs 448.0GB/s)
12032 additional rendering cores
Score
Benchmark
FP32 (float)
RTX A4000
19170
L40
+372%
90520
Blender
RTX A4000
3190
L40
+22%
3901
Graphics Card
Apr 2021
Release Date
Oct 2022
Quadro Ampere
Generation
Tesla Ada
Professional
Type
Professional
PCIe 4.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
735 MHz
Base Clock
735 MHz
1560 MHz
Boost Clock
2490 MHz
1750 MHz
Memory Clock
2250 MHz
Memory
16GB
Memory Size
48GB
GDDR6
Memory Type
GDDR6
256bit
Memory Bus
384bit
448.0GB/s
Bandwidth
864.0GB/s
Render Config
48
SM Count
142
6144
Shading Units
18176
192
TMUs
568
96
ROPs
192
192
Tensor Cores
568
48
RT Cores
142
128 KB (per SM)
L1 Cache
128 KB (per SM)
4 MB
L2 Cache
96 MB
Theoretical Performance
149.8 GPixel/s
Pixel Rate
478.1 GPixel/s
299.5 GTexel/s
Texture Rate
1414 GTexel/s
19.17 TFLOPS
FP16 (half)
90.52 TFLOPS
19.17 TFLOPS
FP32 (float)
90.52 TFLOPS
299.5 GFLOPS
FP64 (double)
1414 GFLOPS
Board Design
140W
TDP
300W
300 W
Suggested PSU
700 W
4x DisplayPort 1.4a
Outputs
4x DisplayPort 1.4a
1x 6-pin
Power Connectors
1x 16-pin
Graphics Processor
GA104
GPU Name
AD102
GA104-875-A1
GPU Variant
AD102-895-A1
Ampere
Architecture
Ada Lovelace
Samsung
Foundry
TSMC
8 nm
Process Size
4 nm
17.4 billion
Transistors
76.3 billion
392 mm²
Die Size
608 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
8.6
CUDA
8.9
6.7
Shader Model
6.6
