Radeon RX 5500 XT and GeForce GTX 660 Rev. 2 - video card comparison
Radeon RX 5500 XT
GeForce GTX 660 Rev. 2
Architecture
RDNA 1.0 (2019−2020)
Kepler (2012−2018)
GPU code name
Navi 14 XTX
GK104
Market segment
Desktop
Desktop
Release date
December 2019
September 2014
Interface
PCIe 4.0 x8
PCIe 3.0 x16
Supplementary power connectors
1x 8-pin
1x 6-pin
Boost clock speed
1845 MHz
1032 MHz
Core clock speed
1607 MHz
980 MHz
Floating-point performance
-
1,981 gflops
Manufacturing process technology
7 nm
28 nm
Number of transistors
6,400 million
3,540 million
Pipelines / CUDA cores
1408
960
Power consumption (TDP)
130 Watt
140 Watt
Texture fill rate
162.4
82.56
Memory type
GDDR6
GDDR5
Maximum RAM amount
8 GB
2 GB
Memory bus width
128 Bit
192 Bit
Memory clock speed
14000 MHz
6008 MHz
Memory bandwidth
224.0 GB/s
144.2 GB/s
Shared memory
-
-
Display Connectors
1x HDMI, 3x DisplayPort
2x 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