NVIDIA GeForce GTX 870M vs AMD Radeon R9 380 OEM
GPU · Specs Compare
Graphics Card
Release Date
Mar 2014
May 2015
Generation
GeForce 800M
Pirate Islands
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 3.0 x16
Clock Speeds
Base Clock
941 MHz
—
Boost Clock
967 MHz
—
Memory Clock
1250 MHz
1375 MHz
Memory
Memory Size
3GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
192bit
256bit
Bandwidth
120.0GB/s
176.0GB/s
Render Config
Shading Units
1344
1792
TMUs
112
112
ROPs
24
32
L1 Cache
16 KB (per SMX)
16 KB (per CU)
L2 Cache
384 KB
512 KB
Compute Units
—
28
Theoretical Performance
Pixel Rate
27.08 GPixel/s
29.38 GPixel/s
Texture Rate
108.3 GTexel/s
102.8 GTexel/s
FP32 (float)
2.599 TFLOPS
3.290 TFLOPS
FP64 (double)
108.3 GFLOPS
205.6 GFLOPS
FP16 (half)
—
3.290 TFLOPS
Graphics Processor
GPU Name
GK104
Antigua
GPU Variant
N15E-GT-A2
Antigua PRO(215-0877000)
Architecture
Kepler
GCN 3.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
3.54 billion
5 billion
Die Size
294 mm²
366 mm²
Board Design
TDP
100W
190W
Outputs
No outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
None
2x 6-pin
Suggested PSU
—
450 W
Graphics Features
DirectX
12 (11_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
3.0
2.0
Vulkan
1.1
1.2
CUDA
3.0
—
Shader Model
5.1
6.3
▲ Specs Compare
Data sourced from official specifications and benchmark tests.