GeForce GTX 660 and GeForce RTX 2080 Ti - video card comparison
Passmark - benchmark score GeForce GTX 660 vs GeForce RTX 2080 Ti
GeForce GTX 660
4119
GeForce RTX 2080 Ti
22431
GeForce GTX 660
GeForce RTX 2080 Ti
Architecture
Kepler (2012−2018)
Turing (2018−2021)
GPU code name
GK106
Turing TU102
Market segment
Desktop
Desktop
Release date
September 2012
August 2018
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
One 6-pin
2x 8-pin
SLI options
+
-
Boost clock speed
1033 MHz
1545 MHz
Core clock speed
980 MHz
1350 MHz
CUDA cores
960
-
Floating-point performance
1,981 gflops
-
Manufacturing process technology
28 nm
12 nm
Number of transistors
2,540 million
18,600 million
Pipelines / CUDA cores
960
4352
Power consumption (TDP)
140 Watt
270 Watt
Texture fill rate
78.4 billion/sec
420.2
Memory type
GDDR5
GDDR6
Maximum RAM amount
2 GB
11 GB
Memory bus width
192-bit GDDR5
352 Bit
Memory clock speed
6.0 GB/s
14000 MHz
Memory bandwidth
144.2 GB/s
616.0 GB/s
Shared memory
-
-
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
1x HDMI, 3x DisplayPort, 1x USB Type-C
Multi monitor support
4 displays
-
HDMI
+
+
HDCP
+
-
Maximum VGA resolution
2048x1536
-
G-SYNC support
-
+
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
12 Ultimate (12_1)
CUDA
+
7.5
OpenCL
1.2
2.0
OpenGL
4.3
4.6
Shader Model
5.1
6.5
Vulkan
1.1.126
1.2.131
3D Blu-Ray
+
-
3D Gaming
+
-
3D Vision
+
-
VR Ready
-
+