GeForce GTX 1070 and Radeon HD 6870 X2 - video card comparison
GeForce GTX 1070
Radeon HD 6870 X2
Architecture
Pascal (2016−2021)
TeraScale 2 (2009−2015)
GPU code name
Pascal GP104
Barts
Market segment
Desktop
Desktop
Release date
May 2016
July 2011
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Recommended system power (PSU)
500 Watt
-
Supplementary power connectors
8-pin
-
SLI options
+
-
Boost clock speed
1683 MHz
-
Core clock speed
1506 MHz
900 MHz
CUDA cores
1920
-
Floating-point performance
6,463 gflops
2x 2,016.0 gflops
Manufacturing process technology
16 nm
40 nm
Number of transistors
7,200 million
1,700 million
Pipelines / CUDA cores
1920
1120
Power consumption (TDP)
150 Watt
300 Watt
Maximum GPU temperature
94 °C
-
Texture fill rate
202.0
50.40
Memory type
GDDR5
GDDR5
Maximum RAM amount
8 GB
1 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
8 GB/s
4200 MHz
Memory bandwidth
256 GB/s
134.4 GB/s
Shared memory
-
-
Display Connectors
DP 1.42, HDMI 2.0b, Dual Link-DVI
2x DVI, 1x HDMI, 2x mini-DisplayPort
Multi monitor support
+
-
HDMI
+
+
G-SYNC support
+
-
DirectX
12 (12_1)
11.2 (11_0)
CUDA
+
-
OpenCL
1.2
1.2
OpenGL
4.5
4.4
Shader Model
6.4
5.0
Vulkan
+
N/A
Ansel
+
-
GPU Boost
3.0
-
VR Ready
+
-