Radeon HD 7950 and Radeon R9 M270X - video card comparison
Passmark - benchmark score Radeon HD 7950 vs Radeon R9 M270X
Radeon HD 7950
4907
Radeon R9 M270X
1240
Radeon HD 7950
Radeon R9 M270X
Architecture
GCN 1.0 (2012−2020)
GCN 1.0 (2012−2020)
GPU code name
Tahiti
Venus
Market segment
Desktop
Desktop
Release date
January 2012
March 2014
Bus support
PCIe 3.0 x16
PCIe 3.0 x16
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 6-pin
-
Boost clock speed
1250 MHz
775 MHz
Compute units
28
10
Core clock speed
-
725 MHz
Floating-point performance
2,867 gflops
1,536 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
4,313 million
1,500 million
Pipelines / CUDA cores
1792
640
Power consumption (TDP)
200 Watt
-
Texture fill rate
89.60
31.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
3 GB
4 GB
Memory bus width
384 Bit
128 Bit
Memory clock speed
1250 MHz
1125 MHz
Memory bandwidth
240 GB/s
72 GB/s
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
Eyefinity
1
1
Number of Eyefinity displays
6
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 11
DirectX® 11
Mantle
-
+
OpenCL
1.2
Not Listed
OpenGL
4.6
4.4
Shader Model
5.1
5.1
AppAcceleration
+
-
CrossFire
1
-
DualGraphics
-
1
Enduro
-
-
FreeSync
1
1
HD3D
-
+
PowerTune
+
+
Switchable graphics
-
1
TrueAudio
-
-
ZeroCore
+
+