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Radeon HD 6850 and GeForce 840M - video card comparison


Passmark - benchmark score Radeon HD 6850 vs GeForce 840M

Radeon HD 6850
2030
GeForce 840M
1121

Radeon HD 6850

GeForce 840M


Architecture
TeraScale 2 (2009−2015)
Maxwell (2014−2018)

GPU code name
Barts
N15S-GT

Market segment
Desktop
Laptop

Release date
October 2010
March 2014

Bus support
AGP
PCI Express 2.0, PCI Express 3.0

Interface
PCIe 2.0 x16
PCIe 3.0 x8

Supplementary power connectors
1x 6-pin
-

Boost clock speed
-
1124 MHz

Core clock speed
-
1029 MHz

Floating-point performance
1,488.0 gflops
863.2 gflops

Manufacturing process technology
40 nm
28 nm

Number of transistors
1,700 million
-

Pipelines / CUDA cores
960
384

Power consumption (TDP)
127 Watt
33 Watt

Texture fill rate
37.20
17.98

Memory type
GDDR5
DDR3

Maximum RAM amount
1 GB
4 GB

Memory bus width
256 Bit
64 Bit

Memory clock speed
-
2000 MHz

Memory bandwidth
128.0 GB/s
16.02 GB/s

Shared memory
-
-

Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs

Eyefinity
1
-

HDMI
+
-

DisplayPort support
-
-

DirectX
DirectX® 11
12 (11_0)

CUDA
-
+

Mantle
-
-

OpenCL
1.2
1.2

OpenGL
4.4
4.5

Shader Model
5.0
5.1

Vulkan
-
1.1.126

AppAcceleration
-
-

CrossFire
1
-

Enduro
-
-

GameWorks
-
+

GPU Boost
-
2.0

HD3D
-
-

Optimus
-
+

PowerTune
-
-

TrueAudio
-
-

ZeroCore
-
-