Radeon RX 480 and Radeon HD 6450 - video card comparison
Passmark - benchmark score Radeon RX 480 vs Radeon HD 6450
Radeon RX 480
8883
Radeon HD 6450
203
Radeon RX 480
Radeon HD 6450
Architecture
Polaris (2016−2019)
TeraScale 2 (2009−2015)
GPU code name
Polaris 10 Ellesmere
Caicos
Market segment
Desktop
Desktop
Release date
June 2016
April 2011
Bus support
n/a
PCIe 2.0 x8
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
None
Bridgeless CrossFire
1
-
Boost clock speed
1266 MHz
750 MHz
Compute units
36
-
Core clock speed
1120 MHz
-
Floating-point performance
5,834 gflops
200.0 gflops
Manufacturing process technology
14 nm
40 nm
Number of transistors
5,700 million
370 million
Pipelines / CUDA cores
2304
160
Power consumption (TDP)
150 Watt
30 Watt
Texture fill rate
182.3
5.000
Memory type
GDDR5
GDDR5
Maximum RAM amount
8 GB
1 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
8000 MHz
800 MHz
Memory bandwidth
224 GB/s
25.6 GB/s
Memory bandwidth
-
8.5-12.8 GB/x (DDR3) or 25.6-28.8 GB/s (GDDR5)
Shared memory
-
-
Display Connectors
1x HDMI, 3x DisplayPort
1x DVI, 1x HDMI, 1x VGA
Eyefinity
1
1
Number of Eyefinity displays
-
4
HDMI
2.0
+
DisplayPort support
1.4HDR
+
DirectX
DirectX® 12
DirectX® 11
Mantle
n/a
-
OpenCL
2.0
1.2
OpenGL
4.5
4.4
Shader Model
6.4
5.0
Vulkan
+
-
AppAcceleration
n/a
-
CrossFire
1
1
Enduro
n/a
-
FreeSync
+
-
FRTC
1
-
HD3D
n/a
-
LiquidVR
1
-
PowerTune
+
-
TressFX
1
-
TrueAudio
n/a
-
UVD
+
-
VCE
+
-
ZeroCore
+
-