GeForce 840M and Radeon RX 6600 XT - video card comparison
Passmark - benchmark score GeForce 840M vs Radeon RX 6600 XT
GeForce 840M
1121
Radeon RX 6600 XT
16985
GeForce 840M
Radeon RX 6600 XT
Architecture
Maxwell (2014−2018)
Navi / RDNA2 (2020−2022)
GPU code name
N15S-GT
Navi 23
Market segment
Laptop
Desktop
Release date
March 2014
July 2021
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
PCIe 3.0 x8
PCIe 4.0 x8
Supplementary power connectors
-
1x 8-pin
Boost clock speed
1124 MHz
2589 MHz
Core clock speed
1029 MHz
1968 MHz
Floating-point performance
863.2 gflops
-
Manufacturing process technology
28 nm
7 nm
Number of transistors
-
11,060 million
Pipelines / CUDA cores
384
2048
Power consumption (TDP)
33 Watt
160 (TGP) Watt
Texture fill rate
17.98
331.4
Memory type
DDR3
GDDR6
Maximum RAM amount
4 GB
8 GB
Memory bus width
64 Bit
128 Bit
Memory clock speed
2000 MHz
16000 MHz
Memory bandwidth
16.02 GB/s
256.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x HDMI, 2x DisplayPort
HDMI
-
+
DirectX
12 (11_0)
12.0 Ultimate (12_2)
CUDA
+
-
OpenCL
1.2
2.1
OpenGL
4.5
4.6
Shader Model
5.1
6.5
Vulkan
1.1.126
1.2
GameWorks
+
-
GPU Boost
2.0
-
Optimus
+
-