Mobility Radeon HD 3870 X2 and HD Graphics 520 - video card comparison
Mobility Radeon HD 3870 X2
HD Graphics 520
Architecture
RV6xx (2007−2010)
Gen. 9 Skylake (2015−2016)
GPU code name
M88-XT CF
Skylake GT2
Market segment
Laptop
Laptop
Release date
September 2008
September 2015
Interface
PCIe 2.0 x16
PCIe 3.0 x1
Boost clock speed
-
1050 MHz
Core clock speed
660 MHz
300 MHz
Floating-point performance
2x 422.4 gflops
-
Manufacturing process technology
55 nm
14 nm
Number of transistors
666 million
189 million
Pipelines / CUDA cores
640
24
Power consumption (TDP)
110 Watt
15 Watt
Texture fill rate
10.56
25.20
Memory type
GDDR3
DDR3L/LPDDR3/DDR4
Maximum RAM amount
512 MB
32 GB
Memory bus width
256 Bit
64/128 Bit
Memory clock speed
850 MHz
System Shared
Memory bandwidth
54.4 GB/s
-
Shared memory
-
+
Display Connectors
No outputs
No outputs
DirectX
10.1 (10_1)
12 (12_1)
OpenCL
N/A
2.1
OpenGL
3.3
4.6
Shader Model
4.1
6.4
Vulkan
N/A
+
Quick Sync
-
+