Radeon R9 290 and GeForce 840M - video card comparison
Passmark - benchmark score Radeon R9 290 vs GeForce 840M
Radeon R9 290
8336
GeForce 840M
1121
Radeon R9 290
GeForce 840M
Architecture
GCN 2.0 (2013−2017)
Maxwell (2014−2018)
GPU code name
Hawaii
N15S-GT
Market segment
Desktop
Laptop
Release date
November 2013
March 2014
Bus support
-
PCI Express 2.0, PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
1x 6-pin + 1x 8-pin
-
Boost clock speed
-
1124 MHz
Core clock speed
947 MHz
1029 MHz
Floating-point performance
4,849 gflops
863.2 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
6,200 million
-
Pipelines / CUDA cores
2560
384
Power consumption (TDP)
275 Watt
33 Watt
Texture fill rate
151.5
17.98
Memory type
GDDR5
DDR3
Maximum RAM amount
4 GB
4 GB
Memory bus width
512 Bit
64 Bit
Memory clock speed
5000 MHz
2000 MHz
Memory bandwidth
320.0 GB/s
16.02 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
HDMI
+
-
DirectX
12 (12_0)
12 (11_0)
CUDA
-
+
OpenCL
2.0
1.2
OpenGL
4.6
4.5
Shader Model
6.3
5.1
Vulkan
1.2.131
1.1.126
GameWorks
-
+
GPU Boost
-
2.0
Optimus
-
+