Radeon R7 250 and Radeon HD 7970 GHz Edition - video card comparison
Radeon R7 250
Radeon HD 7970 GHz Edition
Architecture
GCN (2011−2017)
GCN 1.0 (2012−2020)
GPU code name
Oland XT
Tahiti
Market segment
Desktop
Desktop
Release date
October 2013
June 2012
Bus support
PCIe 3.0
PCIe 2.1 x16
Interface
PCIe 3.0 x8
PCIe 3.0 x16
Supplementary power connectors
N/A
1x 6-pin + 1x 8-pin
Boost clock speed
1050 MHz
1050 MHz
Floating-point performance
716.8 gflops
4,301 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
950 million
4,313 million
Pipelines / CUDA cores
384
2048
Power consumption (TDP)
75 Watt
250 Watt
Texture fill rate
25.20
134.4
Memory type
DDR3, GDDR5
GDDR5
Maximum RAM amount
2 GB
3 GB
Memory bus width
128 Bit
384 Bit
Memory clock speed
1150 MHz
1500 MHz
Memory bandwidth
72 GB/s
288 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x VGA
1x DVI, 1x HDMI, 2x mini-DisplayPort
Eyefinity
-
1
HDMI
+
+
DisplayPort support
-
-
DirectX
DirectX® 12
DirectX® 11
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
-
-