GPU Comparison
GEFORCE
NVIDIA L20
CORE STATE
AD102
VRAM
48 GB
CLOCK SPEED
2520 MHz
TDP
275 W
BUS WIDTH
384 bit
ARCHITECTURE
Ada Lovelace
PROCESS
5 nm
LAUNCH DATE
2023
VS
GEFORCE
RTX 4000 SFF Ada Generation
CORE STATE
AD104
VRAM
20 GB
CLOCK SPEED
1560 MHz
TDP
70 W
BUS WIDTH
160 bit
ARCHITECTURE
Ada Lovelace
PROCESS
5 nm
LAUNCH DATE
2023
PERFORMANCE BENCHMARKS
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
L20
RTX 4000 SFF Ada Generation
Core Specs
Shading Units
11,776
6,144
-47.8%
Shaders
11,776
6,144
-47.8%
TMUs
368
192
-47.8%
ROPs
128
64
-50.0%
SM Count
92
48
-47.8%
Clocks
Base Clock
1440 MHz
720 MHz
Boost Clock
2520 MHz
1560 MHz
Memory Clock
2250 MHz
18 Gbps effective
1750 MHz
14 Gbps effective
Memory
Memory Size
48 GB
20 GB
VRAM (MB)
49,152
20,480
-58.3%
Memory Type
GDDR6
GDDR6
Memory Bus
384 bit
160 bit
Bandwidth
864.0 GB/s
280.0 GB/s
Cache
L1 Cache
128 KB (per SM)
128 KB (per SM)
L2 Cache
96 MB
48 MB
Performance
Pixel Rate
322.6 GPixel/s
99.84 GPixel/s
Texture Rate
927.4 GTexel/s
299.5 GTexel/s
FP32 (TFLOPS)
59.35 TFLOPS
19.17 TFLOPS
FP64 (TFLOPS)
927.4 GFLOPS (1:64)
299.5 GFLOPS (1:64)
FP16 (TFLOPS)
59.35 TFLOPS (1:1)
19.17 TFLOPS (1:1)
AI/RT
RT Cores
92
48
-47.8%
Tensor Cores
368
192
-47.8%
Power
TDP
275 W
70 W
TDP (W)
275
70
-74.5%
Suggested PSU
600 W
250 W
Power Connectors
1x 16-pin
None
Architecture
Architecture
Ada Lovelace
Ada Lovelace
GPU Name
AD102
AD104
Generation
Server Ada
(Lxx)
Workstation Ada
(x000A)
Process Size
5 nm
5 nm
Transistors
76,300 million
35,800 million
Die Size
609 mm²
294 mm²
Foundry
TSMC
TSMC
Density
125.3M / mm²
121.8M / mm²
API Support
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
Vulkan
1.4
1.4
OpenCL
3.0
3.0
CUDA
8.9
8.9
Shader Model
6.8
6.8
Physical
Slot Width
Dual-slot
Dual-slot
Length
267 mm
10.5 inches
168 mm
6.6 inches
Height
111 mm
4.4 inches
69 mm
2.7 inches
Outputs
4x DisplayPort 1.4a
4x mini-DisplayPort 1.4a
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x16
Other
Production
Active
Active
Predecessor
Server Ampere
Workstation Ampere
Successor
Server Hopper
Blackwell PRO W