GeForce GT 640M Mac Edition vs Radeon R7 M265
We compared two Mobile platform GPUs: 512MB VRAM GeForce GT 640M Mac Edition and 2GB VRAM Radeon R7 M265 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce GT 640M Mac Edition 's Advantages
Larger VRAM bandwidth (40.00GB/s vs 28.80GB/s)
Radeon R7 M265 's Advantages
Released 11 months late
Boost Clock825MHz
More VRAM (2GB vs 512GB)
Score
Benchmark
FP32 (float)
GeForce GT 640M Mac Edition
572
Radeon R7 M265
+10%
633
Graphics Card
Feb 2013
Release Date
Jan 2014
GeForce 600M
Generation
Gem System
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
725 MHz
-
Boost Clock
825 MHz
1250 MHz
Memory Clock
900 MHz
Memory
512MB
Memory Size
2GB
GDDR5
Memory Type
DDR3
64bit
Memory Bus
128bit
40.00GB/s
Bandwidth
28.80GB/s
Render Config
-
Compute Units
6
384
Shading Units
384
32
TMUs
24
8
ROPs
8
16 KB (per SMX)
L1 Cache
16 KB (per CU)
128 KB
L2 Cache
256 KB
Theoretical Performance
5.960 GPixel/s
Pixel Rate
6.600 GPixel/s
23.84 GTexel/s
Texture Rate
19.80 GTexel/s
572.2 GFLOPS
FP32 (float)
633.6 GFLOPS
23.84 GFLOPS
FP64 (double)
-
Board Design
32W
TDP
Unknown
No outputs
Outputs
Portable Device Dependent
Graphics Processor
GK107
GPU Name
Opal
N13P-GS
GPU Variant
Opal XT
Kepler
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.27 billion
Transistors
0.95 billion
118 mm²
Die Size
77 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
3.0
OpenCL
2.1 (1.2)
1.1
Vulkan
1.2.170
3.0
CUDA
-
5.1
Shader Model
6.5 (5.1)
