GeForce 845M and Radeon HD 6850M - video card comparison
GeForce 845M
Radeon HD 6850M
Architecture
Maxwell (2014−2018)
Terascale 2 (2009−2015)
GPU code name
GM108
Granville Pro/LP
Market segment
Laptop
Laptop
Release date
March 2014
January 2011
Interface
PCIe 3.0 x8
PCIe 2.0 x16
Boost clock speed
1150 MHz
-
Core clock speed
1071 MHz
575 / 675 MHz
Floating-point performance
883.7 gflops
1,080.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
1,870 million
1,040 million
Pipelines / CUDA cores
384
800
Power consumption (TDP)
45 Watt
50 Watt
Texture fill rate
37.63
27.00
Memory type
DDR3, GDDR5
DDR3, GDDR5
Maximum RAM amount
2 GB
1 GB
Memory bus width
64/128 Bit
128 Bit
Memory clock speed
2000 - 5000 MHz
800 MHz
Memory bandwidth
40.1 GB/s
25.6 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 (11_0)
11.2 (11_0)
CUDA
+
-
OpenCL
1.2
1.2
OpenGL
4.6
4.4
Shader Model
5.1
5.0
Vulkan
1.1.126
N/A
Optimus
+
-