Radeon R7 512 Cores (Kaveri Desktop) and GeForce 840A - video card comparison
Radeon R7 512 Cores (Kaveri Desktop)
GeForce 840A
Architecture
GCN (2011−2017)
Maxwell (2014−2018)
GPU code name
Kaveri Spectre
GM108
Market segment
Desktop
Desktop
Release date
January 2014
March 2014
Interface
-
PCIe 3.0 x8
Boost clock speed
-
1124 MHz
Core clock speed
720 MHz
1029 MHz
Floating-point performance
-
863.2 gflops
Manufacturing process technology
28 nm
28 nm
Pipelines / CUDA cores
512
384
Power consumption (TDP)
-
33 Watt
Texture fill rate
-
17.98
Memory type
-
DDR3
Maximum RAM amount
-
2 GB
Memory bus width
-
64 Bit
Memory clock speed
-
2002 MHz
Memory bandwidth
-
16.02 GB/s
Shared memory
+
-
Display Connectors
-
No outputs
DirectX
12 (FL 12_0)
12 (11_0)
CUDA
-
5.0
OpenCL
-
1.2
OpenGL
-
4.6
Shader Model
-
5.1
Vulkan
-
1.1.126