Radeon R9 380 and Radeon HD 6450 - video card comparison
Passmark - benchmark score Radeon R9 380 vs Radeon HD 6450
Radeon R9 380
6330
Radeon HD 6450
203
Radeon R9 380
Radeon HD 6450
Architecture
GCN (2011−2017)
TeraScale 2 (2009−2015)
GPU code name
Tonga Pro
Caicos
Market segment
Desktop
Desktop
Release date
June 2015
April 2011
Bus support
PCIe 3.0
PCIe 2.0 x8
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
2 x 6-pin
None
Bridgeless CrossFire
1
-
Boost clock speed
970 MHz
750 MHz
Compute units
28
-
Floating-point performance
3,476 gflops
200.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
5,000 million
370 million
Pipelines / CUDA cores
1792
160
Power consumption (TDP)
190 Watt
30 Watt
Texture fill rate
108.6
5.000
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
1 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
970 MHz
800 MHz
Memory bandwidth
182.4 GB/s
25.6 GB/s
Memory bandwidth
-
8.5-12.8 GB/x (DDR3) or 25.6-28.8 GB/s (GDDR5)
High bandwidth memory (HBM)
-
-
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 1x HDMI, 1x VGA
Eyefinity
+
1
Number of Eyefinity displays
6
4
HDMI
+
+
DisplayPort support
+
+
DirectX
DirectX® 12
DirectX® 11
Mantle
+
-
OpenCL
2.0
1.2
OpenGL
4.5
4.4
Shader Model
6.3
5.0
Vulkan
+
-
AppAcceleration
-
-
CrossFire
1
1
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
FRTC
1
-
HD3D
+
-
LiquidVR
1
-
PowerTune
+
-
TrueAudio
+
-
VCE
+
-
ZeroCore
+
-