NVIDIA GeForce GTX 780M Mac Edition vs NVIDIA GeForce GT 445M
We compared two Mobile platform GPUs: 4GB VRAM GeForce GTX 780M Mac Edition and 1024MB VRAM GeForce GT 445M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 780M Mac Edition 's Advantages
Released 3 years and 2 months late
Boost Clock797MHz
More VRAM (4GB vs 1024GB)
Larger VRAM bandwidth (160.0GB/s vs 40.00GB/s)
1392 additional rendering cores
NVIDIA GeForce GT 445M 's Advantages
Lower TDP (35W vs 122W)
Score
Benchmark
FP32 (float)
GeForce GTX 780M Mac Edition
+646%
2.448 TFLOPS
GeForce GT 445M
0.328 TFLOPS
Graphics Card
Nov 2013
Release Date
Sep 2010
GeForce 700M
Generation
GeForce 400M
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 2.0 x16
Clock Speeds
771 MHz
Base Clock
-
797 MHz
Boost Clock
-
1250 MHz
Memory Clock
625 MHz
Memory
4GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
160.0GB/s
Bandwidth
40.00GB/s
Render Config
-
-
-
-
SM Count
3
1536
Shading Units
144
128
TMUs
24
32
ROPs
16
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
64 KB (per SM)
512 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
25.50 GPixel/s
Pixel Rate
3.420 GPixel/s
102.0 GTexel/s
Texture Rate
13.68 GTexel/s
-
-
-
2.448 TFLOPS
FP32 (float)
328.3 GFLOPS
102.0 GFLOPS
FP64 (double)
27.36 GFLOPS
Board Design
122W
TDP
35W
-
-
-
No outputs
Outputs
No outputs
-
-
-
Graphics Processor
GK104
GPU Name
GF106
N14E-GTX-A2
GPU Variant
N11E-GE-A1
Kepler
Architecture
Fermi
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
3.54 billion
Transistors
1.17 billion
294 mm²
Die Size
238 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
1.1
1.1
Vulkan
N/A
3.0
CUDA
2.1
5.1
Shader Model
5.1
