GeForce GTX 880M vs Radeon R9 M390 Mac Edition
We compared two Mobile platform GPUs: 8GB VRAM GeForce GTX 880M and 2GB VRAM Radeon R9 M390 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce GTX 880M 's Advantages
Boost Clock993MHz
More VRAM (8GB vs 2GB)
512 additional rendering cores
Radeon R9 M390 Mac Edition 's Advantages
Released 1 years and 2 months late
Larger VRAM bandwidth (174.7GB/s vs 160.0GB/s)
Lower TDP (80W vs 122W)
Score
Benchmark
FP32 (float)
GeForce GTX 880M
+55%
3050
Radeon R9 M390 Mac Edition
1962
Graphics Card
Mar 2014
Release Date
May 2015
GeForce 800M
Generation
Crystal System
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 3.0 x16
Clock Speeds
954 MHz
Base Clock
-
993 MHz
Boost Clock
-
1250 MHz
Memory Clock
1365 MHz
Memory
8GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
256bit
160.0GB/s
Bandwidth
174.7GB/s
Render Config
-
Compute Units
16
1536
Shading Units
1024
128
TMUs
64
32
ROPs
32
16 KB (per SMX)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
512 KB
Theoretical Performance
31.78 GPixel/s
Pixel Rate
30.66 GPixel/s
127.1 GTexel/s
Texture Rate
61.31 GTexel/s
3.050 TFLOPS
FP32 (float)
1.962 TFLOPS
127.1 GFLOPS
FP64 (double)
122.6 GFLOPS
Board Design
122W
TDP
80W
No outputs
Outputs
No outputs
None
Power Connectors
None
Graphics Processor
GK104
GPU Name
Pitcairn
N15E-GX-A2
GPU Variant
Pitcairn PRO
(215-0828062)
Kepler
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
3.54 billion
Transistors
2.8 billion
294 mm²
Die Size
212 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
3.0
OpenCL
1.2
1.1
Vulkan
1.2
3.0
CUDA
-
5.1
Shader Model
5.1