Radeon HD 7870 and GeForce GTX 950 OEM - video card comparison
Radeon HD 7870
GeForce GTX 950 OEM
Architecture
GCN (2011−2017)
Maxwell 2.0 (2015−2019)
GPU code name
Pitcairn XT
GM206S
Market segment
Desktop
Desktop
Release date
March 2012
2016
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 6-pin
None
Boost clock speed
-
1203 MHz
Core clock speed
1000 MHz
937 MHz
Floating-point performance
-
1,946 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2800 Million
2,940 million
Pipelines / CUDA cores
1280
1024
Power consumption (TDP)
175 Watt
-
Texture fill rate
80.00
76.99
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
4800 MHz
5 GB/s
Memory bandwidth
153.6 GB/s
80.19 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
Eyefinity
+
-
HDMI
+
-
DirectX
12 (11_1)
12 (12_1)
CUDA
-
5.2
OpenCL
1.2
3.0
OpenGL
4.6
4.6
Shader Model
5.1
6.7
Vulkan
1.2.131
1.3