GeForce GTX 980 SLI Mobile and Radeon HD 4870 X2 - video card comparison
GeForce GTX 980 SLI Mobile
Radeon HD 4870 X2
Architecture
Maxwell (2014−2018)
TeraScale (2005−2013)
GPU code name
N16E-GXX SLI
R700
Market segment
Laptop
Desktop
Release date
September 2015
August 2008
Interface
-
PCIe 2.0 x16
Supplementary power connectors
-
1x 6-pin + 1x 8-pin
SLI options
+
-
Boost clock speed
1228 MHz
-
Core clock speed
1126 MHz
700 MHz
Floating-point performance
-
2x 1,120.0 gflops
Manufacturing process technology
28 nm
55 nm
Number of transistors
10400 Million
956 million
Pipelines / CUDA cores
4096
800
Power consumption (TDP)
330 Watt
286 Watt
Texture fill rate
-
28.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
2x 8 GB
1 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
3500 MHz
3600 MHz
Memory bandwidth
-
115.2 GB/s
Shared memory
-
-
Display Connectors
-
2x DVI, 1x S-Video
G-SYNC support
+
-
DirectX
12_1
10.1 (10_1)
CUDA
+
-
OpenCL
-
1.1
OpenGL
-
3.3
Shader Model
-
4.1
Vulkan
-
N/A