NVIDIA GeForce GTX 970M vs AMD Radeon HD 8870 OEM
GPU Specs Compare
Graphics Card
Release Date
Oct 2014
Jan 2013
Generation
GeForce 900M
Sea Islands
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 3.0 x16
Clock Speeds
Base Clock
924 MHz
-
Boost Clock
1038 MHz
-
Memory Clock
1253 MHz
1200 MHz
Memory
Memory Size
3GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
192bit
256bit
Bandwidth
120.3GB/s
153.6GB/s
Render Config
Shading Units
1280
1280
TMUs
80
80
ROPs
48
32
L1 Cache
48 KB (per SMM)
16 KB (per CU)
L2 Cache
1536 KB
512 KB
Compute Units
-
20
Theoretical Performance
Pixel Rate
49.82 GPixel/s
32.00 GPixel/s
Texture Rate
83.04 GTexel/s
80.00 GTexel/s
FP32 (float)
2.657 TFLOPS
2.560 TFLOPS
FP64 (double)
83.04 GFLOPS
160.0 GFLOPS
Graphics Processor
GPU Name
GM204
Pitcairn
GPU Variant
N16E-GT-A2
Pitcairn XT(215-0828047)
Architecture
Maxwell 2.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
5.2 billion
2.8 billion
Die Size
398 mm²
212 mm²
Board Design
TDP
Unknown
175W
Outputs
Portable Device Dependent
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
None
2x 6-pin
Suggested PSU
-
450 W
Graphics Features
DirectX
12 (12_1)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
3.0
1.2
Vulkan
1.3
1.2
CUDA
5.2
-
Shader Model
6.7 (6.4)
5.1