Radeon HD 7950 and Radeon R7 250 - video card comparison
Passmark - benchmark score Radeon HD 7950 vs Radeon R7 250
Radeon HD 7950
4907
Radeon R7 250
1100
Radeon HD 7950
Radeon R7 250
Architecture
GCN 1.0 (2012−2020)
GCN (2011−2017)
GPU code name
Tahiti
Oland XT
Market segment
Desktop
Desktop
Release date
January 2012
October 2013
Bus support
PCIe 3.0 x16
PCIe 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
2x 6-pin
N/A
Boost clock speed
1250 MHz
1050 MHz
Compute units
28
-
Floating-point performance
2,867 gflops
716.8 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
4,313 million
950 million
Pipelines / CUDA cores
1792
384
Power consumption (TDP)
200 Watt
75 Watt
Texture fill rate
89.60
25.20
Memory type
GDDR5
DDR3, GDDR5
Maximum RAM amount
3 GB
2 GB
Memory bus width
384 Bit
128 Bit
Memory clock speed
1250 MHz
1150 MHz
Memory bandwidth
240 GB/s
72 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
1x DVI, 1x HDMI, 1x VGA
Eyefinity
1
-
Number of Eyefinity displays
6
-
HDMI
+
+
DisplayPort support
-
-
DirectX
DirectX® 11
DirectX® 12
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
5.1
AppAcceleration
+
+
CrossFire
1
1
DDMA audio
-
+
Enduro
-
-
FreeSync
1
1
HD3D
-
-
PowerTune
+
-
TrueAudio
-
-
ZeroCore
+
-