Radeon HD 7970M and GeForce GTX 870M - video card comparison
Passmark - benchmark score Radeon HD 7970M vs GeForce GTX 870M
Radeon HD 7970M
3635
GeForce GTX 870M
3552
Radeon HD 7970M
GeForce GTX 870M
Architecture
GCN (2011−2017)
Kepler (2012−2018)
GPU code name
Wimbledon XT
N15P-GT
Market segment
Laptop
Laptop
Release date
May 2012
March 2014
Bus support
-
PCI Express 2.0, PCI Express 3.0
Interface
MXM-B (3.0)
MXM-B (3.0)
Supplementary power connectors
None
None
SLI options
-
+
Boost clock speed
-
967 MHz
Core clock speed
850 MHz
941 MHz
CUDA cores
-
1344
Floating-point performance
2,176 gflops
2,599 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,800 million
3,540 million
Pipelines / CUDA cores
1280
1344
Power consumption (TDP)
100 Watt
100 Watt
Texture fill rate
68.00
108.3
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
6 GB
Memory bus width
256 Bit
192 Bit
Memory clock speed
4800 MHz
Up to 2500 MHz
Memory bandwidth
153.6 GB/s
120.0 GB/s
Shared memory
-
-
Standard memory configuration
-
GDDR5
Display Connectors
No outputs
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 (11_1)
12 (11_0)
CUDA
-
+
OpenCL
1.2
1.1
OpenGL
4.6
4.5
Shader Model
5.1
5.1
Vulkan
1.2.131
1.1.126
H.264, VC1, MPEG2 1080p video decoder
-
+
Optimus
-
+
TrueHD and DTS-HD audio bitstreaming
-
+