GeForce GTX 675M and Mobility Radeon HD 4870 X2 - video card comparison
GeForce GTX 675M
Mobility Radeon HD 4870 X2
Architecture
Fermi (2010−2014)
Terascale 1 (2008−2010)
GPU code name
N13E-GS1
M98-XT
Market segment
Laptop
Laptop
Release date
March 2012
January 2009
Bus support
PCI Express 2.0
-
Interface
MXM-B (3.0)
PCIe 2.0 x16
SLI options
+
-
Core clock speed
620 MHz
550 MHz
CUDA cores
384
-
Floating-point performance
952.3 gflops
2x 880.0 gflops
Manufacturing process technology
40 nm
55 nm
Number of transistors
1,950 million
956 million
Pipelines / CUDA cores
384
1600
Power consumption (TDP)
100 Watt
-
Texture fill rate
39.7 billion/sec
22.00
Memory type
GDDR5
GDDR3, GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
256bit
256 Bit
Memory clock speed
1500 MHz
888 MHz
Memory bandwidth
96.0 GB/s
89.6 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
10.1 (10_1)
CUDA
+
-
OpenCL
1.1
1.1
OpenGL
4.5
3.3
Shader Model
5.1
4.1
Vulkan
N/A
N/A
Optimus
+
-