AMD Radeon HD 6870 X2 vs NVIDIA GeForce GTX 980MX
GPU · Specs Compare
Graphics Card
Release Date
Jul 2011
Jun 2016
Generation
Northern Islands
GeForce 900M
Type
Desktop
Mobile
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1050 MHz
1500 MHz
Base Clock
—
1050 MHz
Boost Clock
—
1178 MHz
Memory
Memory Size
1024MB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
134.4GB/s
192.0GB/s
Render Config
Compute Units
14
—
Shading Units
1120
1664
TMUs
56
104
ROPs
32
64
L1 Cache
8 KB (per CU)
48 KB (per SMM)
L2 Cache
512 KB
2 MB
Theoretical Performance
Pixel Rate
28.80 GPixel/s
75.39 GPixel/s
Texture Rate
50.40 GTexel/s
122.5 GTexel/s
FP32 (float)
2.016 TFLOPS
3.920 TFLOPS
FP64 (double)
—
122.5 GFLOPS
Graphics Processor
GPU Name
Barts
GM204
GPU Variant
Barts XT(215-0798000)
N16E-GXX-A1
Architecture
TeraScale 2
Maxwell 2.0
Foundry
TSMC
TSMC
Process Size
40 nm
28 nm
Transistors
1.7 billion
5.2 billion
Die Size
255 mm²
398 mm²
Board Design
TDP
300W
148W
Suggested PSU
700 W
—
Outputs
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
No outputs
Power Connectors
—
None
Graphics Features
DirectX
11.2 (11_0)
12 (12_1)
OpenGL
4.4
4.6
OpenCL
1.2
3.0
Vulkan
N/A
1.3
Shader Model
5.0
6.4
CUDA
—
5.2
▲ Specs Compare
Data sourced from official specifications and benchmark tests.