GeForce GTX 970M SLI and GeForce GTX 870M - video card comparison
GeForce GTX 970M SLI
GeForce GTX 870M
Architecture
Maxwell (2014−2018)
Kepler (2012−2018)
GPU code name
-
N15P-GT
Market segment
Laptop
Laptop
Release date
October 2014
March 2014
Bus support
-
PCI Express 2.0, PCI Express 3.0
Interface
-
MXM-B (3.0)
Supplementary power connectors
-
None
SLI options
+
+
Boost clock speed
1038 MHz
967 MHz
Core clock speed
924 MHz
941 MHz
CUDA cores
-
1344
Floating-point performance
-
2,599 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2x 5200 Million
3,540 million
Pipelines / CUDA cores
2560
1344
Power consumption (TDP)
162 Watt
100 Watt
Texture fill rate
-
108.3
Memory type
GDDR5
GDDR5
Maximum RAM amount
2x 6 GB
6 GB
Memory bus width
2x 192 Bit
192 Bit
Memory clock speed
5000 MHz
Up to 2500 MHz
Memory bandwidth
-
120.0 GB/s
Shared memory
-
-
Standard memory configuration
-
GDDR5
Display Connectors
-
No outputs
eDP 1.2 signal support
-
Up to 3840x2160
LVDS signal support
-
Up to 1920x1200
VGA аnalog display support
-
Up to 2048x1536
DisplayPort Multimode (DP++) support
-
Up to 3840x2160
HDCP content protection
-
+
HDMI
-
+
7.1 channel HD audio on HDMI
-
+
DirectX
12_1
12 (11_0)
CUDA
+
+
OpenCL
-
1.1
OpenGL
-
4.5
Shader Model
-
5.1
Vulkan
-
1.1.126
H.264, VC1, MPEG2 1080p video decoder
-
+
Optimus
+
+
TrueHD and DTS-HD audio bitstreaming
-
+