Mobility Radeon HD 4850 X2 and L20 - video card comparison
Mobility Radeon HD 4850 X2
L20
Architecture
TeraScale (2005−2013)
Ada Lovelace
GPU code name
M98
AD102
Market segment
Desktop
Desktop
Release date
January 2009
November 2023
Interface
PCIe 2.0 x16
PCIe 4.0 x16
Supplementary power connectors
-
1x 16-pin
Boost clock speed
-
2520 MHz
Core clock speed
500 MHz
-
Floating-point performance
2x 800.0 gflops
-
Manufacturing process technology
55 nm
5 nm
Number of transistors
956 million
76,300 million
Pipelines / CUDA cores
800
11776
Power consumption (TDP)
-
275 Watt
Texture fill rate
20.00
927.4
Memory type
GDDR5
GDDR6
Maximum RAM amount
1 GB
48 GB
Memory bus width
256 Bit
384 Bit
Memory clock speed
2800 MHz
18 GB/s
Memory bandwidth
89.6 GB/s
864.0 GB/s
Display Connectors
No outputs
4x DisplayPort 1.4a
DirectX
10.1 (10_1)
12 Ultimate (12_2)
CUDA
-
8.9
OpenCL
1.1
3.0
OpenGL
3.3
4.6
Shader Model
4.1
6.7
Vulkan
N/A
1.3