Radeon R5 Graphics and GeForce GT 645 OEM - video card comparison
Radeon R5 Graphics
GeForce GT 645 OEM
Architecture
GCN 2.0 (2013−2017)
Fermi 2.0 (2010−2014)
GPU code name
Spectre SL
GF114
Market segment
Desktop
Desktop
Release date
September 2014
April 2012
Interface
IGP
PCIe 2.0 x16
Boost clock speed
720 MHz
-
Core clock speed
497 MHz
776 MHz
Floating-point performance
388.1 gflops
894.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
2,410 million
1,950 million
Pipelines / CUDA cores
256
288
Power consumption (TDP)
15 Watt
102 Watt
Texture fill rate
7.952
37.25
Memory type
System Shared
GDDR5
Maximum RAM amount
System Shared
1 GB
Memory bus width
System Shared
192 Bit
Memory clock speed
System Shared
3828 MHz
Memory bandwidth
-
91.87 GB/s
Display Connectors
No outputs
2x DVI, 1x mini-HDMI
HDMI
-
+
DirectX
12 (12_0)
12 (11_0)
CUDA
-
2.1
OpenCL
2.0
1.1
OpenGL
4.6
4.6
Shader Model
6.0
5.1
Vulkan
1.2.131
N/A