NVIDIA GeForce RTX 2080 SUPER Max Q vs NVIDIA GeForce GT 645M
We compared two Mobile platform GPUs: 8GB VRAM GeForce RTX 2080 SUPER Max Q and 2GB VRAM GeForce GT 645M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce RTX 2080 SUPER Max Q 's Advantages
Released 7 years and 6 months late
Boost Clock975MHz
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (352.0GB/s vs 28.80GB/s)
2688 additional rendering cores
NVIDIA GeForce GT 645M 's Advantages
Lower TDP (32W vs 80W)
Score
Benchmark
FP32 (float)
GeForce RTX 2080 SUPER Max Q
+1001%
5.99 TFLOPS
GeForce GT 645M
0.544 TFLOPS
3DMark Time Spy
GeForce RTX 2080 SUPER Max Q
+2285%
8540
GeForce GT 645M
358
Graphics Card
Apr 2020
Release Date
Oct 2012
GeForce 20 Mobile
Generation
GeForce 600M
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
735 MHz
Base Clock
-
975 MHz
Boost Clock
-
1375 MHz
Memory Clock
900 MHz
Memory
8GB
Memory Size
2GB
GDDR6
Memory Type
DDR3
256bit
Memory Bus
128bit
352.0GB/s
Bandwidth
28.80GB/s
Render Config
-
-
-
48
SM Count
-
3072
Shading Units
384
192
TMUs
32
64
ROPs
16
384
Tensor Cores
-
48
RT Cores
-
64 KB (per SM)
L1 Cache
16 KB (per SMX)
4 MB
L2 Cache
256 KB
-
-
-
Theoretical Performance
62.40 GPixel/s
Pixel Rate
5.672 GPixel/s
187.2 GTexel/s
Texture Rate
22.69 GTexel/s
11.98 TFLOPS
FP16 (half)
-
5.990 TFLOPS
FP32 (float)
544.5 GFLOPS
187.2 GFLOPS
FP64 (double)
22.69 GFLOPS
Board Design
80W
TDP
32W
-
-
-
No outputs
Outputs
No outputs
None
Power Connectors
-
Graphics Processor
TU104
GPU Name
GK107
N18E-G3R
GPU Variant
N13P-GS
Turing
Architecture
Kepler
TSMC
Foundry
TSMC
12 nm
Process Size
28 nm
13.6 billion
Transistors
1.27 billion
545 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
7.5
CUDA
3.0
6.6
Shader Model
5.1
