Home GPU Comparison AMD Radeon R5 M255 vs AMD Radeon RX 6800S

AMD Radeon R5 M255 vs AMD Radeon RX 6800S

We compared two Mobile platform GPUs: 2GB VRAM Radeon R5 M255 and 8GB VRAM Radeon RX 6800S to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6800S 's Advantages
Released 7 years and 3 months late
Boost Clock has increased by 123% (2100MHz vs 940MHz)
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (256.0GB/s vs 32.00GB/s)
1664 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon R5 M255
0.721 TFLOPS
Radeon RX 6800S +1093%
8.602 TFLOPS
VS

Graphics Card

Oct 2014
Release Date
Jan 2022
Gem System
Generation
Mobility Radeon
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
PCIe 4.0 x8

Clock Speeds

925 MHz
Base Clock
1800 MHz
940 MHz
Boost Clock
2100 MHz
1000 MHz
Memory Clock
2000 MHz

Memory

2GB
Memory Size
8GB
DDR3
Memory Type
GDDR6
128bit
Memory Bus
128bit
32.00GB/s
Bandwidth
256.0GB/s

Render Config

6
Compute Units
32
-
-
-
384
Shading Units
2048
24
TMUs
128
8
ROPs
64
-
-
-
-
RT Cores
32
16 KB (per CU)
L1 Cache
128 KB per Array
256 KB
L2 Cache
2 MB
-
L3 Cache
32 MB

Theoretical Performance

7.520 GPixel/s
Pixel Rate
134.4 GPixel/s
22.56 GTexel/s
Texture Rate
268.8 GTexel/s
721.9 GFLOPS
FP16 (half)
17.20 TFLOPS
721.9 GFLOPS
FP32 (float)
8.602 TFLOPS
45.12 GFLOPS
FP64 (double)
537.6 GFLOPS

Board Design

Unknown
TDP
100W
-
-
-
Portable Device Dependent
Outputs
No outputs
-
Power Connectors
None

Graphics Processor

Topaz
GPU Name
Navi 23
Topaz PRO (216-0858030)
GPU Variant
-
GCN 3.0
Architecture
RDNA 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
7 nm
1.55 billion
Transistors
11.06 billion
125 mm²
Die Size
237 mm²

Graphics Features

12 (12_0)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
2.1
OpenCL
2.1
1.2.170
Vulkan
1.3
-
-
-
6.5
Shader Model
6.5

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