Radeon HD 7870M and GeForce GT 820M - video card comparison
Passmark - benchmark score Radeon HD 7870M vs GeForce GT 820M
Radeon HD 7870M
1552
GeForce GT 820M
584
Radeon HD 7870M
GeForce GT 820M
Architecture
GCN (2011−2017)
Fermi 2.0 (2010−2014)
GPU code name
Heathrow XT
GF117
Market segment
Laptop
Desktop
Release date
April 2012
November 2013
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Core clock speed
800 MHz
775 MHz
Floating-point performance
1,024 gflops
297.6 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,500 million
585 million
Pipelines / CUDA cores
640
96
Power consumption (TDP)
45 Watt
15 Watt
Texture fill rate
32.00
12.40
Memory type
GDDR5
DDR3
Maximum RAM amount
2 GB
1 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
4000 MHz
1800 MHz
Memory bandwidth
64 GB/s
14.4 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 (11_1)
12 (11_0)
CUDA
-
2.1
OpenCL
1.2
1.1
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
1.2.131
N/A