GeForce GTX 660 Rev. 2 and Iris Xe MAX Graphics - video card comparison
GeForce GTX 660 Rev. 2
Iris Xe MAX Graphics
Architecture
Kepler (2012−2018)
Gen. 12 Xe (2020)
GPU code name
GK104
iDG1LPDEV
Market segment
Desktop
Laptop
Release date
September 2014
October 2020
Interface
PCIe 3.0 x16
PCIe 4.0 x4
Supplementary power connectors
1x 6-pin
-
Boost clock speed
1032 MHz
1650 MHz
Core clock speed
980 MHz
-
Floating-point performance
1,981 gflops
-
Manufacturing process technology
28 nm
10 nm
Number of transistors
3,540 million
-
Pipelines / CUDA cores
960
96
Power consumption (TDP)
140 Watt
25 Watt
Texture fill rate
82.56
79.20
Memory type
GDDR5
LPDDR4x
Maximum RAM amount
2 GB
4 GB
Memory bus width
192 Bit
128 Bit
Memory clock speed
6008 MHz
4266 MHz
Memory bandwidth
144.2 GB/s
68.26 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
HDMI
+
-
DirectX
12 (11_0)
12 (12_1)
CUDA
3.0
-
OpenCL
1.2
3.0
OpenGL
4.6
4.6
Shader Model
5.1
6.4
Vulkan
1.1.126
1.2