NVIDIA GeForce GT 755M Mac Edition vs AMD Radeon R5 M255
We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 755M Mac Edition and 2GB VRAM Radeon R5 M255 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 32.00GB/s)
AMD Radeon R5 M255 's Advantages
Released 11 months late
Boost Clock940MHz
More VRAM (2GB vs 1024GB)
Score
Benchmark
FP32 (float)
GeForce GT 755M Mac Edition
+15%
0.833 TFLOPS
Radeon R5 M255
0.721 TFLOPS
Graphics Card
Nov 2013
Release Date
Oct 2014
GeForce 700M
Generation
Gem System
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
925 MHz
-
Boost Clock
940 MHz
1250 MHz
Memory Clock
1000 MHz
Memory
1024MB
Memory Size
2GB
GDDR5
Memory Type
DDR3
128bit
Memory Bus
128bit
80.00GB/s
Bandwidth
32.00GB/s
Render Config
-
Compute Units
6
-
-
-
384
Shading Units
384
32
TMUs
24
16
ROPs
8
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
8.680 GPixel/s
Pixel Rate
7.520 GPixel/s
34.72 GTexel/s
Texture Rate
22.56 GTexel/s
-
FP16 (half)
721.9 GFLOPS
833.3 GFLOPS
FP32 (float)
721.9 GFLOPS
34.72 GFLOPS
FP64 (double)
45.12 GFLOPS
Board Design
50W
TDP
Unknown
-
-
-
No outputs
Outputs
Portable Device Dependent
-
-
-
Graphics Processor
GK107
GPU Name
Topaz
GT 755M
GPU Variant
Topaz PRO
(216-0858030)
Kepler
Architecture
GCN 3.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.27 billion
Transistors
1.55 billion
118 mm²
Die Size
125 mm²
Graphics Features
12 (11_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
3.0
OpenCL
2.1
1.1
Vulkan
1.2.170
3.0
CUDA
-
5.1
Shader Model
6.5
