Mobility Radeon HD 3870 X2 and GeForce RTX 4090 - video card comparison
Mobility Radeon HD 3870 X2
GeForce RTX 4090
Architecture
RV6xx (2007−2010)
Ada Lovelace
GPU code name
M88-XT CF
AD102-300-A1
Market segment
Laptop
Desktop
Release date
September 2008
September 2022
Interface
PCIe 2.0 x16
PCIe 4.0 x16
Supplementary power connectors
-
1x 16-pin
Boost clock speed
-
2520 MHz
Core clock speed
660 MHz
2235 MHz
Floating-point performance
2x 422.4 gflops
-
Manufacturing process technology
55 nm
5 nm
Number of transistors
666 million
76,300 million
Pipelines / CUDA cores
640
16384
Power consumption (TDP)
110 Watt
450 Watt
Texture fill rate
10.56
1,290
Memory type
GDDR3
GDDR6X
Maximum RAM amount
512 MB
24 GB
Memory bus width
256 Bit
384 Bit
Memory clock speed
850 MHz
21000 MHz
Memory bandwidth
54.4 GB/s
1,008 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x HDMI 2.1, 3x DisplayPort 1.4a
HDMI
-
+
DirectX
10.1 (10_1)
12 Ultimate (12_2)
CUDA
-
8.9
OpenCL
N/A
3.0
OpenGL
3.3
4.6
Shader Model
4.1
6.6
Vulkan
N/A
1.3