Radeon RX 480 and GeForce GT 645M - video card comparison
Passmark - benchmark score Radeon RX 480 vs GeForce GT 645M
Radeon RX 480
8883
GeForce GT 645M
957
Radeon RX 480
GeForce GT 645M
Architecture
Polaris (2016−2019)
Kepler (2012−2018)
GPU code name
Polaris 10 Ellesmere
N13P-GS
Market segment
Desktop
Laptop
Release date
June 2016
March 2012
Bus support
n/a
PCI Express 2.0, PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin
-
Bridgeless CrossFire
1
-
Boost clock speed
1266 MHz
-
Compute units
36
-
Core clock speed
1120 MHz
Up to 710 MHz
CUDA cores
-
384
Floating-point performance
5,834 gflops
544.5 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
5,700 million
1,270 million
Pipelines / CUDA cores
2304
384
Power consumption (TDP)
150 Watt
32 Watt
Texture fill rate
182.3
22.7 billion/sec
Memory type
GDDR5
DDR3\GDDR5
Maximum RAM amount
8 GB
2 GB
Memory bus width
256 Bit
128bit
Memory clock speed
8000 MHz
1800 MHz
Memory bandwidth
224 GB/s
Up to 64.0 GB/s
Shared memory
-
-
Display Connectors
1x HDMI, 3x DisplayPort
No outputs
Eyefinity
1
-
HDMI
2.0
+
HDCP
-
+
Maximum VGA resolution
-
Up to 2048x1536
DisplayPort support
1.4HDR
-
DirectX
DirectX® 12
12 API
CUDA
-
+
Mantle
n/a
-
OpenCL
2.0
1.1
OpenGL
4.5
4.5
Shader Model
6.4
5.1
Vulkan
+
1.1.126
3D Blu-Ray
-
+
AppAcceleration
n/a
-
CrossFire
1
-
Enduro
n/a
-
FreeSync
+
-
FRTC
1
-
HD3D
n/a
-
LiquidVR
1
-
Optimus
-
+
PowerTune
+
-
TressFX
1
-
TrueAudio
n/a
-
UVD
+
-
VCE
+
-
ZeroCore
+
-