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GeForce GTX 670MX and Radeon HD 6850M - video card comparison


GeForce GTX 670MX

Radeon HD 6850M


Architecture
Kepler (2012−2018)
Terascale 2 (2009−2015)

GPU code name
N13E-GR
Granville Pro/LP

Market segment
Laptop
Laptop

Release date
October 2012
January 2011

Bus support
PCI Express 2.0
-

Interface
PCIe 3.0 x16
PCIe 2.0 x16

SLI options
+
-

Core clock speed
600 MHz
575 / 675 MHz

CUDA cores
960
-

Floating-point performance
1,154 gflops
1,080.0 gflops

Manufacturing process technology
28 nm
40 nm

Number of transistors
3,540 million
1,040 million

Pipelines / CUDA cores
960
800

Power consumption (TDP)
75 Watt
50 Watt

Texture fill rate
48.0 billion/sec
27.00

Memory type
GDDR5
DDR3, GDDR5

Maximum RAM amount
3 GB
1 GB

Memory bus width
192 Bit
128 Bit

Memory clock speed
1400 MHz
800 MHz

Memory bandwidth
67.2 GB/s
25.6 GB/s

Shared memory
-
-

Display Connectors
No outputs
No outputs

HDMI
+
-

HDCP
+
-

Maximum VGA resolution
Up to 2048x1536
-

DirectX
12 API
11.2 (11_0)

CUDA
+
-

OpenCL
1.1
1.2

OpenGL
4.5
4.4

Shader Model
5.1
5.0

Vulkan
1.1.126
N/A

Optimus
+
-