GeForce GTX 880M SLI and Radeon RX 6600M - video card comparison
GeForce GTX 880M SLI
Radeon RX 6600M
Architecture
Kepler (2012−2018)
RDNA 2 (2020−2022)
GPU code name
N15E-GX-A2
R21M-E65-70
Market segment
Laptop
Laptop
Release date
March 2014
September 2020
Interface
-
PCIe 4.0 x8
Supplementary power connectors
-
None
SLI options
+
-
Boost clock speed
-
2177 MHz
Core clock speed
954 MHz
2068 MHz
Manufacturing process technology
28 nm
7 nm
Number of transistors
2x 3540 Million
11,060 million
Pipelines / CUDA cores
3072
1792
Power consumption (TDP)
206 Watt
100 Watt (50 - 100 Watt TGP)
Texture fill rate
-
235.8
Memory type
GDDR5
GDDR6
Maximum RAM amount
2x 8 GB
8 GB
Memory bus width
2x 256 Bit
128 Bit
Memory clock speed
5000 MHz
14000 MHz
Memory bandwidth
-
256.0 GB/s
Shared memory
-
-
Display Connectors
-
No outputs
DirectX
12 (FL 11_0)
12 Ultimate (12_2)
CUDA
+
-
OpenCL
-
2.1
OpenGL
-
4.6
Shader Model
-
6.5
Vulkan
-
1.2
Optimus
+
-