GeForce RTX 4070 Mobile vs GeForce GTX 850M
We compared two Mobile platform GPUs: 8GB VRAM GeForce RTX 4070 Mobile and 2GB VRAM GeForce GTX 850M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce RTX 4070 Mobile 's Advantages
Released 8 years and 10 months late
Boost Clock1695MHz
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (256.0GB/s vs 32.03GB/s)
3968 additional rendering cores
GeForce GTX 850M 's Advantages
Lower TDP (45W vs 115W)
Score
Benchmark
FP32 (float)
GeForce RTX 4070 Mobile
+1252%
15620
GeForce GTX 850M
1155
OctaneBench
GeForce RTX 4070 Mobile
+1581%
370
GeForce GTX 850M
22
Graphics Card
Jan 2023
Release Date
Mar 2014
GeForce 40 Mobile
Generation
GeForce 800M
Mobile
Type
Mobile
PCIe 4.0 x8
Bus Interface
PCIe 3.0 x16
Clock Speeds
1395 MHz
Base Clock
-
1695 MHz
Boost Clock
-
2000 MHz
Memory Clock
1001 MHz
Memory
8GB
Memory Size
2GB
GDDR6
Memory Type
DDR3
128bit
Memory Bus
128bit
256.0GB/s
Bandwidth
32.03GB/s
Render Config
36
SM Count
-
4608
Shading Units
640
144
TMUs
40
48
ROPs
16
144
Tensor Cores
-
36
RT Cores
-
128 KB (per SM)
L1 Cache
64 KB (per SMM)
32 MB
L2 Cache
2 MB
Theoretical Performance
81.36 GPixel/s
Pixel Rate
14.43 GPixel/s
244.1 GTexel/s
Texture Rate
36.08 GTexel/s
15.62 TFLOPS
FP16 (half)
-
15.62 TFLOPS
FP32 (float)
1155 GFLOPS
244.1 GFLOPS
FP64 (double)
36.08 GFLOPS
Board Design
115W
TDP
45W
Portable Device Dependent
Outputs
No outputs
None
Power Connectors
-
Graphics Processor
AD106
GPU Name
GM107
GN21-X6
GPU Variant
N15P-GT-A1
Ada Lovelace
Architecture
Maxwell
TSMC
Foundry
TSMC
5 nm
Process Size
28 nm
22.9 billion
Transistors
1.87 billion
188 mm²
Die Size
148 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.3
8.9
CUDA
5.0
6.8
Shader Model
5.1
