GeForce GTX 660 OEM and Radeon RX 7700 XT - video card comparison
GeForce GTX 660 OEM
Radeon RX 7700 XT
Architecture
Kepler (2012−2018)
RDNA 3
GPU code name
GK104
Navi 32
Market segment
Desktop
Desktop
Release date
August 2012
August 2023
Interface
PCIe 3.0 x16
PCIe 4.0 x16
Supplementary power connectors
1x 6-pin
2x 8-pin
Boost clock speed
888 MHz
2544 MHz
Core clock speed
823 MHz
1700 MHz
Floating-point performance
2,046 gflops
-
Manufacturing process technology
28 nm
5 nm
Number of transistors
3,540 million
28,100 million
Pipelines / CUDA cores
1152
3456
Power consumption (TDP)
130 Watt
245 Watt
Texture fill rate
85.25
549.5
Memory type
GDDR5
GDDR6
Maximum RAM amount
2 GB
12 GB
Memory bus width
256 Bit
192 Bit
Memory clock speed
5600 MHz
18000 MHz
Memory bandwidth
179.2 GB/s
432.0 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C
HDMI
+
+
DirectX
12 (11_0)
12 Ultimate (12_2)
CUDA
3.0
-
OpenCL
1.2
2.2
OpenGL
4.6
4.6
Shader Model
5.1
6.7
Vulkan
1.1.126
1.3