Radeon 520 and Radeon HD 6870M - video card comparison
Radeon 520
Radeon HD 6870M
Architecture
GCN 1.0 (2012−2020)
Terascale 2 (2009−2015)
GPU code name
Oland
Granville-PRO
Market segment
Laptop
Laptop
Release date
March 2017
January 2011
Interface
PCIe 3.0 x8
MXM-B (3.0)
Supplementary power connectors
None
-
Core clock speed
1030 MHz
675 MHz
Floating-point performance
659.2 gflops
1,080.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
1,040 million
1,040 million
Pipelines / CUDA cores
320
800
Power consumption (TDP)
50 Watt
50 Watt
Texture fill rate
20.60
27.00
Memory type
DDR3, GDDR5
DDR3, GDDR3, GDDR5
Maximum RAM amount
2 GB
1 GB
Memory bus width
64 Bit
128 Bit
Memory clock speed
2250 MHz
1000 MHz
Memory bandwidth
16 GB/s
64 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x VGA
No outputs
HDMI
+
-
DirectX
12.0
11.2 (11_0)
OpenCL
1.2
1.2
OpenGL
4.6
4.4
Shader Model
5.0
5.0
Vulkan
+
N/A