Radeon HD 7870 and Radeon R5 M320 - video card comparison
Passmark - benchmark score Radeon HD 7870 vs Radeon R5 M320
Radeon HD 7870
4779
Radeon R5 M320
462
Radeon HD 7870
Radeon R5 M320
Architecture
GCN (2011−2017)
GCN 2.0 (2013−2017)
GPU code name
Pitcairn XT
Exo UL/ULT/ULP
Market segment
Desktop
Laptop
Release date
March 2012
May 2015
Bus support
-
PCIe 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
2x 6-pin
-
Boost clock speed
-
855 MHz
Compute units
-
5
Core clock speed
1000 MHz
855 MHz
Floating-point performance
-
547.2 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2800 Million
690 million
Pipelines / CUDA cores
1280
320
Power consumption (TDP)
175 Watt
unknown
Texture fill rate
80.00
17.10
Memory type
GDDR5
DDR3
Maximum RAM amount
2 GB
4 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
4800 MHz
1000 MHz
Memory bandwidth
153.6 GB/s
16 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
Eyefinity
+
-
HDMI
+
-
DirectX
12 (11_1)
DirectX® 12
Mantle
-
+
OpenCL
1.2
Not Listed
OpenGL
4.6
4.4
Shader Model
5.1
5.1
Vulkan
1.2.131
+
AppAcceleration
-
-
DualGraphics
-
1
Enduro
-
-
HD3D
-
+
PowerTune
-
+
Switchable graphics
-
1
TrueAudio
-
-
ZeroCore
-
+