Radeon R9 380 and Radeon HD 7970 GHz Edition - video card comparison
Radeon R9 380
Radeon HD 7970 GHz Edition
Architecture
GCN (2011−2017)
GCN 1.0 (2012−2020)
GPU code name
Tonga Pro
Tahiti
Market segment
Desktop
Desktop
Release date
June 2015
June 2012
Bus support
PCIe 3.0
PCIe 2.1 x16
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
2 x 6-pin
1x 6-pin + 1x 8-pin
Bridgeless CrossFire
1
-
Boost clock speed
970 MHz
1050 MHz
Compute units
28
-
Floating-point performance
3,476 gflops
4,301 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
5,000 million
4,313 million
Pipelines / CUDA cores
1792
2048
Power consumption (TDP)
190 Watt
250 Watt
Texture fill rate
108.6
134.4
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
3 GB
Memory bus width
256 Bit
384 Bit
Memory clock speed
970 MHz
1500 MHz
Memory bandwidth
182.4 GB/s
288 GB/s
High bandwidth memory (HBM)
-
-
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 1x HDMI, 2x mini-DisplayPort
Eyefinity
+
1
Number of Eyefinity displays
6
-
HDMI
+
+
DisplayPort support
+
-
DirectX
DirectX® 12
DirectX® 11
Mantle
+
-
OpenCL
2.0
1.2
OpenGL
4.5
4.6
Shader Model
6.3
5.1
Vulkan
+
-
AppAcceleration
-
-
CrossFire
1
1
DDMA audio
+
-
Enduro
-
-
FreeSync
1
1
FRTC
1
-
HD3D
+
-
LiquidVR
1
-
PowerTune
+
-
TrueAudio
+
-
VCE
+
-
ZeroCore
+
-