NVIDIA GeForce GT 755M Mac Edition vs NVIDIA GeForce 840A
We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 755M Mac Edition and 2GB VRAM GeForce 840A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 755M Mac Edition 's Advantages
Larger VRAM bandwidth (80.00GB/s vs 16.02GB/s)
NVIDIA GeForce 840A 's Advantages
Boost Clock1124MHz
More VRAM (2GB vs 1024GB)
Lower TDP (33W vs 50W)
Score
Benchmark
FP32 (float)
GeForce GT 755M Mac Edition
0.833 TFLOPS
GeForce 840A
+3%
0.863 TFLOPS
Graphics Card
Nov 2013
Release Date
Mar 2014
GeForce 700M
Generation
GeForce 800A
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
1029 MHz
-
Boost Clock
1124 MHz
1250 MHz
Memory Clock
1001 MHz
Memory
1024MB
Memory Size
2GB
GDDR5
Memory Type
DDR3
128bit
Memory Bus
64bit
80.00GB/s
Bandwidth
16.02GB/s
Render Config
-
-
-
-
-
-
384
Shading Units
384
32
TMUs
16
16
ROPs
8
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
64 KB (per SMM)
256 KB
L2 Cache
1024 KB
-
-
-
Theoretical Performance
8.680 GPixel/s
Pixel Rate
8.992 GPixel/s
34.72 GTexel/s
Texture Rate
17.98 GTexel/s
-
-
-
833.3 GFLOPS
FP32 (float)
863.2 GFLOPS
34.72 GFLOPS
FP64 (double)
26.98 GFLOPS
Board Design
50W
TDP
33W
-
-
-
No outputs
Outputs
No outputs
-
-
-
Graphics Processor
GK107
GPU Name
GM108
GT 755M
GPU Variant
-
Kepler
Architecture
Maxwell
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.27 billion
Transistors
Unknown
118 mm²
Die Size
Unknown
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.1
Vulkan
1.3
3.0
CUDA
5.0
5.1
Shader Model
5.1
