NVIDIA L20 vs NVIDIA GeForce RTX 4090 D
We compared two Desktop platform GPUs: 48GB VRAM L20 and 24GB VRAM GeForce RTX 4090 D to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA L20 's Advantages
More VRAM (48GB vs 24GB)
Lower TDP (275W vs 425W)
NVIDIA GeForce RTX 4090 D 's Advantages
Larger VRAM bandwidth (1008GB/s vs 864.0GB/s)
2816 additional rendering cores
Score
Benchmark
FP32 (float)
L20
59.35 TFLOPS
GeForce RTX 4090 D
+23%
73.54 TFLOPS
Graphics Card
Nov 2023
Release Date
Dec 2023
Tesla Ada
Generation
GeForce 40
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
1440 MHz
Base Clock
2280 MHz
2520 MHz
Boost Clock
2520 MHz
2250 MHz
Memory Clock
1313 MHz
Memory
48GB
Memory Size
24GB
GDDR6
Memory Type
GDDR6X
384bit
Memory Bus
384bit
864.0GB/s
Bandwidth
1008GB/s
Render Config
-
-
-
92
SM Count
114
11776
Shading Units
14592
368
TMUs
456
128
ROPs
176
368
Tensor Cores
456
92
RT Cores
114
128 KB (per SM)
L1 Cache
128 KB (per SM)
96 MB
L2 Cache
72 MB
-
-
-
Theoretical Performance
322.6 GPixel/s
Pixel Rate
443.5 GPixel/s
927.4 GTexel/s
Texture Rate
1149 GTexel/s
59.35 TFLOPS
FP16 (half)
73.54 TFLOPS
59.35 TFLOPS
FP32 (float)
73.54 TFLOPS
927.4 GFLOPS
FP64 (double)
1149 GFLOPS
Board Design
275W
TDP
425W
600 W
Suggested PSU
800 W
4x DisplayPort 1.4a
Outputs
1x HDMI 2.1
3x DisplayPort 1.4a
1x 16-pin
Power Connectors
1x 16-pin
Graphics Processor
AD102
GPU Name
AD102
AD102
GPU Variant
AD102-250-A1
Ada Lovelace
Architecture
Ada Lovelace
TSMC
Foundry
TSMC
5 nm
Process Size
5 nm
76.3 billion
Transistors
76.3 billion
609 mm²
Die Size
609 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
8.9
6.7
Shader Model
6.7
