NVIDIA GeForce GT 640M Mac Edition vs AMD Radeon R9 M390 Mac Edition
We compared two Mobile platform GPUs: 512MB VRAM GeForce GT 640M Mac Edition 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
NVIDIA GeForce GT 640M Mac Edition 's Advantages
Lower TDP (32W vs 80W)
AMD Radeon R9 M390 Mac Edition 's Advantages
Released 2 years and 3 months late
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (174.7GB/s vs 40.00GB/s)
640 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce GT 640M Mac Edition
0.572 TFLOPS
Radeon R9 M390 Mac Edition
+243%
1.962 TFLOPS
Graphics Card
Feb 2013
Release Date
May 2015
GeForce 600M
Generation
Crystal System
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
-
-
-
-
-
1250 MHz
Memory Clock
1365 MHz
Memory
512MB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
64bit
Memory Bus
256bit
40.00GB/s
Bandwidth
174.7GB/s
Render Config
-
Compute Units
16
-
-
-
384
Shading Units
1024
32
TMUs
64
8
ROPs
32
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
16 KB (per CU)
128 KB
L2 Cache
512 KB
-
-
-
Theoretical Performance
5.960 GPixel/s
Pixel Rate
30.66 GPixel/s
23.84 GTexel/s
Texture Rate
61.31 GTexel/s
-
-
-
572.2 GFLOPS
FP32 (float)
1.962 TFLOPS
23.84 GFLOPS
FP64 (double)
122.6 GFLOPS
Board Design
32W
TDP
80W
-
-
-
No outputs
Outputs
No outputs
-
Power Connectors
None
Graphics Processor
GK107
GPU Name
Pitcairn
N13P-GS
GPU Variant
Pitcairn PRO
(215-0828062)
Kepler
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.27 billion
Transistors
2.8 billion
118 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
