GeForce RTX 4070 Mobile vs Radeon R5 M255
We compared two Mobile platform GPUs: 8GB VRAM GeForce RTX 4070 Mobile and 2GB VRAM Radeon R5 M255 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 3 months late
Boost Clock has increased by 80% (1695MHz vs 940MHz)
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (256.0GB/s vs 32.00GB/s)
4224 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce RTX 4070 Mobile
+2066%
15620
Radeon R5 M255
721
Graphics Card
Jan 2023
Release Date
Oct 2014
GeForce 40 Mobile
Generation
Gem System
Mobile
Type
Mobile
PCIe 4.0 x8
Bus Interface
PCIe 3.0 x8
Clock Speeds
1395 MHz
Base Clock
925 MHz
1695 MHz
Boost Clock
940 MHz
2000 MHz
Memory Clock
1000 MHz
Memory
8GB
Memory Size
2GB
GDDR6
Memory Type
DDR3
128bit
Memory Bus
128bit
256.0GB/s
Bandwidth
32.00GB/s
Render Config
-
Compute Units
6
36
SM Count
-
4608
Shading Units
384
144
TMUs
24
48
ROPs
8
144
Tensor Cores
-
36
RT Cores
-
128 KB (per SM)
L1 Cache
16 KB (per CU)
32 MB
L2 Cache
256 KB
Theoretical Performance
81.36 GPixel/s
Pixel Rate
7.520 GPixel/s
244.1 GTexel/s
Texture Rate
22.56 GTexel/s
15.62 TFLOPS
FP16 (half)
721.9 GFLOPS
15.62 TFLOPS
FP32 (float)
721.9 GFLOPS
244.1 GFLOPS
FP64 (double)
45.12 GFLOPS
Board Design
115W
TDP
Unknown
Portable Device Dependent
Outputs
Portable Device Dependent
None
Power Connectors
-
Graphics Processor
AD106
GPU Name
Topaz
GN21-X6
GPU Variant
Topaz PRO
(216-0858030)
Ada Lovelace
Architecture
GCN 3.0
TSMC
Foundry
TSMC
5 nm
Process Size
28 nm
22.9 billion
Transistors
1.55 billion
188 mm²
Die Size
125 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (12_0)
4.6
OpenGL
4.6
3.0
OpenCL
2.1
1.3
Vulkan
1.2.170
8.9
CUDA
-
6.8
Shader Model
6.5