Radeon R9 M390X and Radeon HD 6950 - video card comparison
Passmark - benchmark score Radeon R9 M390X vs Radeon HD 6950
Radeon R9 M390X
3705
Radeon HD 6950
2693
Radeon R9 M390X
Radeon HD 6950
Architecture
GCN 3 (2014−2016)
TeraScale 3 (2010−2013)
GPU code name
Amethyst (XT) / Tonga
Cayman
Market segment
Laptop
Desktop
Release date
June 2015
December 2010
Bus support
PCIe 3.0
PCIe 2.0 x16
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
2x 6-pin
Boost clock speed
-
800 MHz
Core clock speed
723 MHz
-
Floating-point performance
2,961 gflops
2,252.8 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
5,000 million
2,640 million
Pipelines / CUDA cores
2048
1408
Power consumption (TDP)
100 Watt
500 Watt
Texture fill rate
92.54
70.40
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
-
1250 MHz
Memory bandwidth
160.0 GB/s
-
Shared memory
-
-
Display Connectors
No outputs
2x DVI, 1x HDMI, 2x mini-DisplayPort
Eyefinity
1
1
HDMI
-
+
DisplayPort support
-
-
DirectX
DirectX® 12
DirectX® 11
Mantle
+
-
OpenCL
Not Listed
1.2
OpenGL
4.4
4.4
Shader Model
6.3
5.0
Vulkan
+
-
AppAcceleration
-
-
CrossFire
-
1
DualGraphics
1
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
PowerTune
+
-
Switchable graphics
1
-
TrueAudio
-
-
ZeroCore
+
-