Radeon R9 M290X and Radeon HD 8870M - video card comparison
Passmark - benchmark score Radeon R9 M290X vs Radeon HD 8870M
Radeon R9 M290X
3360
Radeon HD 8870M
1687
Radeon R9 M290X
Radeon HD 8870M
Architecture
GCN (2011−2017)
GCN (2011−2017)
GPU code name
Neptune
Venus
Market segment
Laptop
Laptop
Release date
January 2014
December 2012
Bus support
PCIe 3.0 x16
-
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
None
-
Boost clock speed
900 MHz
775 MHz
Compute units
20
-
Core clock speed
850 MHz
725 MHz
Floating-point performance
2,304 gflops
992.0 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,800 million
1,500 million
Pipelines / CUDA cores
1280
640
Power consumption (TDP)
100 Watt
-
Texture fill rate
72.00
31.00
Memory type
GDDR5
GDDR5, DDR3
Maximum RAM amount
4 GB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1200 MHz
4500 MHz
Memory bandwidth
153.6 GB/s
72 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
Eyefinity
1
-
DirectX
DirectX® 11
12 (11_1)
Mantle
+
-
OpenCL
Not Listed
1.2
OpenGL
4.4
4.6
Shader Model
5.1
5.1
Vulkan
-
1.2.131
AppAcceleration
-
-
DualGraphics
1
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
PowerTune
+
-
Switchable graphics
1
-
TrueAudio
-
-
ZeroCore
+
-