Radeon R7 250X and Radeon HD 7970 GHz Edition - video card comparison
Radeon R7 250X
Radeon HD 7970 GHz Edition
Architecture
GCN 1.0 (2012−2020)
GCN 1.0 (2012−2020)
GPU code name
Cape Verde
Tahiti
Market segment
Desktop
Desktop
Release date
February 2014
June 2012
Bus support
PCIe 3.0
PCIe 2.1 x16
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1 x 6-pin
1x 6-pin + 1x 8-pin
Boost clock speed
1000 MHz
1050 MHz
Floating-point performance
1,216 gflops
4,301 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,500 million
4,313 million
Pipelines / CUDA cores
640
2048
Power consumption (TDP)
80 Watt
250 Watt
Texture fill rate
38.00
134.4
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
3 GB
Memory bus width
128 Bit
384 Bit
Memory clock speed
1625 MHz
1500 MHz
Memory bandwidth
96 GB/s
288 GB/s
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
1x DVI, 1x HDMI, 2x mini-DisplayPort
Eyefinity
1
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
-
-