AMD Radeon HD 8870 OEM vs NVIDIA GeForce GTX 980 Mobile
GPU Specs Compare
Graphics Card
Release Date
Jan 2013
Sep 2015
Generation
Sea Islands
GeForce 900M
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
MXM-B (3.0)
Clock Speeds
Memory Clock
1200 MHz
1753 MHz
Base Clock
-
1064 MHz
Boost Clock
-
1140 MHz
Memory
Memory Size
2GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
153.6GB/s
224.4GB/s
Render Config
Compute Units
20
-
Shading Units
1280
2048
TMUs
80
128
ROPs
32
64
L1 Cache
16 KB (per CU)
48 KB (per SMM)
L2 Cache
512 KB
2 MB
Theoretical Performance
Pixel Rate
32.00 GPixel/s
72.96 GPixel/s
Texture Rate
80.00 GTexel/s
145.9 GTexel/s
FP32 (float)
2.560 TFLOPS
4.669 TFLOPS
FP64 (double)
160.0 GFLOPS
145.9 GFLOPS
Graphics Processor
GPU Name
Pitcairn
GM204
GPU Variant
Pitcairn XT(215-0828047)
N16E-GXX-A1
Architecture
GCN 1.0
Maxwell 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.8 billion
5.2 billion
Die Size
212 mm²
398 mm²
Board Design
TDP
175W
Unknown
Suggested PSU
450 W
-
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Portable Device Dependent
Power Connectors
2x 6-pin
None
Graphics Features
DirectX
12 (11_1)
12 (12_1)
OpenGL
4.6
4.6
OpenCL
1.2
3.0
Vulkan
1.2
1.3
Shader Model
5.1
6.7 (6.4)
CUDA
-
5.2