Radeon HD 3870 and Radeon RX 6650M XT - video card comparison
Radeon HD 3870
Radeon RX 6650M XT
Architecture
TeraScale (2005−2013)
RDNA 2 (2020−2022)
GPU code name
RV670
Navi 23
Market segment
Desktop
Laptop
Release date
November 2007
January 2022
Interface
PCIe 2.0 x16
PCIe 4.0 x8
Supplementary power connectors
1x 6-pin
None
Boost clock speed
-
2162 MHz
Core clock speed
777 MHz
-
Floating-point performance
497.3 gflops
-
Manufacturing process technology
55 nm
7 nm
Number of transistors
666 million
11,060 million
Pipelines / CUDA cores
320
2048
Power consumption (TDP)
106 Watt
120 Watt
Texture fill rate
12.43
309.2
Memory type
GDDR4
GDDR6
Maximum RAM amount
512 MB
8 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
2252 MHz
18000 MHz
Memory bandwidth
72.06 GB/s
256.0 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x S-Video
No outputs
DirectX
10.1 (10_1)
12.0 Ultimate (12_2)
OpenCL
N/A
2.1
OpenGL
3.3
4.6
Shader Model
4.1
6.5
Vulkan
N/A
1.2