Radeon RX 5500 XT and GeForce GTX 645 OEM - video card comparison
Radeon RX 5500 XT
GeForce GTX 645 OEM
Architecture
RDNA 1.0 (2019−2020)
Kepler (2012−2018)
GPU code name
Navi 14 XTX
GK106
Market segment
Desktop
Desktop
Release date
December 2019
April 2013
Interface
PCIe 4.0 x8
PCIe 3.0 x16
Supplementary power connectors
1x 8-pin
None
Boost clock speed
1845 MHz
-
Core clock speed
1607 MHz
824 MHz
Floating-point performance
-
949.2 gflops
Manufacturing process technology
7 nm
28 nm
Number of transistors
6,400 million
2,540 million
Pipelines / CUDA cores
1408
576
Power consumption (TDP)
130 Watt
65 Watt
Texture fill rate
162.4
39.55
Memory type
GDDR6
GDDR5
Maximum RAM amount
8 GB
1 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
14000 MHz
4000 MHz
Memory bandwidth
224.0 GB/s
64 GB/s
Shared memory
-
-
Display Connectors
1x HDMI, 3x DisplayPort
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
+
+
DirectX
12 (12_1)
12 (11_0)
CUDA
-
3.0
OpenCL
2.0
1.2
OpenGL
4.6
4.6
Shader Model
6.5
5.1
Vulkan
1.2.131
1.1.126