NVIDIA GeForce GTX 870M vs AMD Radeon R9 M280X
GPU Specs Compare
Graphics Card
Release Date
Mar 2014
Feb 2015
Generation
GeForce 800M
Gem System
Type
Mobile
Mobile
Bus Interface
MXM-B (3.0)
PCIe 3.0 x16
Clock Speeds
Base Clock
941 MHz
900 MHz
Boost Clock
967 MHz
1000 MHz
Memory Clock
1250 MHz
1375 MHz
Memory
Memory Size
3GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
192bit
128bit
Bandwidth
120.0GB/s
88.00GB/s
Render Config
Shading Units
1344
896
TMUs
112
56
ROPs
24
16
L1 Cache
16 KB (per SMX)
16 KB (per CU)
L2 Cache
384 KB
256 KB
Compute Units
-
14
Theoretical Performance
Pixel Rate
27.08 GPixel/s
16.00 GPixel/s
Texture Rate
108.3 GTexel/s
56.00 GTexel/s
FP32 (float)
2.599 TFLOPS
1.792 TFLOPS
FP64 (double)
108.3 GFLOPS
112.0 GFLOPS
Graphics Processor
GPU Name
GK104
Saturn
GPU Variant
N15E-GT-A2
Saturn XT(216-0843024)
Architecture
Kepler
GCN 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
3.54 billion
2.08 billion
Die Size
294 mm²
160 mm²
Board Design
TDP
100W
Unknown
Outputs
No outputs
Portable Device Dependent
Power Connectors
None
-
Graphics Features
DirectX
12 (11_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
3.0
2.1
Vulkan
1.1
1.2.170
CUDA
3.0
-
Shader Model
5.1
6.5