Radeon HD 7870 and Radeon R7 M445 - video card comparison
Passmark - benchmark score Radeon HD 7870 vs Radeon R7 M445
Radeon HD 7870
4779
Radeon R7 M445
971
Radeon HD 7870
Radeon R7 M445
Architecture
GCN (2011−2017)
GCN (2011−2017)
GPU code name
Pitcairn XT
Meso
Market segment
Desktop
Laptop
Release date
March 2012
May 2016
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
2x 6-pin
-
Boost clock speed
-
920 MHz
Core clock speed
1000 MHz
920 MHz
Floating-point performance
-
588.8 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2800 Million
1,550 million
Pipelines / CUDA cores
1280
320
Power consumption (TDP)
175 Watt
15-25 Watt
Texture fill rate
80.00
18.40
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
4800 MHz
2000 MHz
Memory bandwidth
153.6 GB/s
32 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
Eyefinity
+
-
HDMI
+
-
DirectX
12 (11_1)
12 (12_0)
OpenCL
1.2
2.0
OpenGL
4.6
4.6
Shader Model
5.1
6.0
Vulkan
1.2.131
1.2.131