AMD Radeon R9 M385X vs NVIDIA GeForce GTX 870M
GPU · Specs Compare
Graphics Card
Release Date
May 2015
Mar 2014
Generation
Gem System
GeForce 800M
Type
Mobile
Mobile
Bus Interface
PCIe 3.0 x16
MXM-B (3.0)
Clock Speeds
Base Clock
1000 MHz
941 MHz
Boost Clock
1100 MHz
967 MHz
Memory Clock
1200 MHz
1250 MHz
Memory
Memory Size
4GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
128bit
192bit
Bandwidth
76.80GB/s
120.0GB/s
Render Config
Compute Units
14
—
Shading Units
896
1344
TMUs
56
112
ROPs
16
24
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
256 KB
384 KB
Theoretical Performance
Pixel Rate
17.60 GPixel/s
27.08 GPixel/s
Texture Rate
61.60 GTexel/s
108.3 GTexel/s
FP32 (float)
1.971 TFLOPS
2.599 TFLOPS
FP64 (double)
123.2 GFLOPS
108.3 GFLOPS
Graphics Processor
GPU Name
Strato
GK104
GPU Variant
Strato XT
N15E-GT-A2
Architecture
GCN 2.0
Kepler
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.08 billion
3.54 billion
Die Size
160 mm²
294 mm²
Board Design
TDP
Unknown
100W
Outputs
Portable Device Dependent
No outputs
Power Connectors
—
None
Graphics Features
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
2.1
3.0
Vulkan
1.2.170
1.1
Shader Model
6.5
5.1
CUDA
—
3.0
▲ Specs Compare
Data sourced from official specifications and benchmark tests.