Radeon HD 7870 and GeForce GTX 860M - video card comparison
Passmark - benchmark score Radeon HD 7870 vs GeForce GTX 860M
Radeon HD 7870
4779
GeForce GTX 860M
3127
Radeon HD 7870
GeForce GTX 860M
Architecture
GCN (2011−2017)
Maxwell (2014−2018)
GPU code name
Pitcairn XT
N15P-GX
Market segment
Desktop
Laptop
Release date
March 2012
March 2014
Bus support
-
PCI Express 2.0, PCI Express 3.0
Interface
PCIe 3.0 x16
MXM-B (3.0)
Supplementary power connectors
2x 6-pin
None
SLI options
-
+
Boost clock speed
-
915 MHz
Core clock speed
1000 MHz
797 MHz
CUDA cores
-
1152 or 640
Floating-point performance
-
1,389 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2800 Million
1,870 million
Pipelines / CUDA cores
1280
640
Power consumption (TDP)
175 Watt
75 Watt
Texture fill rate
80.00
43.40
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
4800 MHz
Up to 2500 MHz
Memory bandwidth
153.6 GB/s
80.0 GB/s
Shared memory
-
-
Standard memory configuration
-
GDDR5
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
eDP 1.2 signal support
-
Up to 3840x2160
LVDS signal support
-
Up to 1920x1200
Eyefinity
+
-
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
Ansel
-
+
H.264, VC1, MPEG2 1080p video decoder
-
+
Optimus
-
+
TrueHD and DTS-HD audio bitstreaming
-
+