GeForce RTX 3080 Ti Mobile vs GeForce GT 640M Mac Edition
We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 3080 Ti Mobile and 512MB VRAM GeForce GT 640M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce RTX 3080 Ti Mobile 's Advantages
Released 8 years and 11 months late
Boost Clock1260MHz
More VRAM (16GB vs 512GB)
Larger VRAM bandwidth (512.0GB/s vs 40.00GB/s)
7040 additional rendering cores
GeForce GT 640M Mac Edition 's Advantages
Lower TDP (32W vs 115W)
Score
Benchmark
FP32 (float)
GeForce RTX 3080 Ti Mobile
+3170%
18710
GeForce GT 640M Mac Edition
572
Graphics Card
Jan 2022
Release Date
Feb 2013
GeForce 30 Mobile
Generation
GeForce 600M
Mobile
Type
Mobile
PCIe 4.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
810 MHz
Base Clock
-
1260 MHz
Boost Clock
-
2000 MHz
Memory Clock
1250 MHz
Memory
16GB
Memory Size
512MB
GDDR6
Memory Type
GDDR5
256bit
Memory Bus
64bit
512.0GB/s
Bandwidth
40.00GB/s
Render Config
58
SM Count
-
7424
Shading Units
384
232
TMUs
32
96
ROPs
8
232
Tensor Cores
-
58
RT Cores
-
128 KB (per SM)
L1 Cache
16 KB (per SMX)
4 MB
L2 Cache
128 KB
Theoretical Performance
121.0 GPixel/s
Pixel Rate
5.960 GPixel/s
292.3 GTexel/s
Texture Rate
23.84 GTexel/s
18.71 TFLOPS
FP16 (half)
-
18.71 TFLOPS
FP32 (float)
572.2 GFLOPS
292.3 GFLOPS
FP64 (double)
23.84 GFLOPS
Board Design
115W
TDP
32W
No outputs
Outputs
No outputs
None
Power Connectors
-
Graphics Processor
GA103S
GPU Name
GK107
GN20-E8-A1
GPU Variant
N13P-GS
Ampere
Architecture
Kepler
Samsung
Foundry
TSMC
8 nm
Process Size
28 nm
Unknown
Transistors
1.27 billion
496 mm²
Die Size
118 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.1
8.6
CUDA
3.0
6.5
Shader Model
5.1
