Home GPU Comparison AMD Radeon R5 M255 vs AMD Radeon RX 480 Mobile

AMD Radeon R5 M255 vs AMD Radeon RX 480 Mobile

We compared two Mobile platform GPUs: 2GB VRAM Radeon R5 M255 and 8GB VRAM Radeon RX 480 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 480 Mobile 's Advantages
Released 1 years and 10 months late
Boost Clock has increased by 15% (1077MHz vs 940MHz)
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (256.0GB/s vs 32.00GB/s)
1920 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon R5 M255
0.721 TFLOPS
Radeon RX 480 Mobile +588%
4.963 TFLOPS
VS

Graphics Card

Oct 2014
Release Date
Aug 2016
Gem System
Generation
Mobility Radeon
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
MXM-B (3.0)

Clock Speeds

925 MHz
Base Clock
1000 MHz
940 MHz
Boost Clock
1077 MHz
1000 MHz
Memory Clock
2000 MHz

Memory

2GB
Memory Size
8GB
DDR3
Memory Type
GDDR5
128bit
Memory Bus
256bit
32.00GB/s
Bandwidth
256.0GB/s

Render Config

6
Compute Units
36
-
-
-
384
Shading Units
2304
24
TMUs
144
8
ROPs
32
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
2 MB
-
-
-

Theoretical Performance

7.520 GPixel/s
Pixel Rate
34.46 GPixel/s
22.56 GTexel/s
Texture Rate
155.1 GTexel/s
721.9 GFLOPS
FP16 (half)
4.963 TFLOPS
721.9 GFLOPS
FP32 (float)
4.963 TFLOPS
45.12 GFLOPS
FP64 (double)
310.2 GFLOPS

Board Design

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

Graphics Processor

Topaz
GPU Name
Ellesmere
Topaz PRO (216-0858030)
GPU Variant
Ellesmere XT
GCN 3.0
Architecture
GCN 4.0
TSMC
Foundry
GlobalFoundries
28 nm
Process Size
14 nm
1.55 billion
Transistors
5.7 billion
125 mm²
Die Size
232 mm²

Graphics Features

12 (12_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.1
OpenCL
2.1
1.2.170
Vulkan
1.2
-
-
-
6.5
Shader Model
6.4

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