Radeon R5 M330 vs Radeon R5 A255
We compared two Mobile platform GPUs: 2GB VRAM Radeon R5 M330 and 1024MB VRAM Radeon R5 A255 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon R5 M330 's Advantages
Released 1 years and 4 months late
Boost Clock has increased by 10% (1030MHz vs 940MHz)
More VRAM (2GB vs 1024GB)
Radeon R5 A255 's Advantages
Larger VRAM bandwidth (64.00GB/s vs 14.40GB/s)
64 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon R5 M330
659
Radeon R5 A255
+9%
721
Graphics Card
May 2015
Release Date
Jan 2014
Crystal System
Generation
All-In-One
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
PCIe 3.0 x8
Clock Speeds
955 MHz
Base Clock
925 MHz
1030 MHz
Boost Clock
940 MHz
900 MHz
Memory Clock
1000 MHz
Memory
2GB
Memory Size
1024MB
DDR3
Memory Type
GDDR5
64bit
Memory Bus
128bit
14.40GB/s
Bandwidth
64.00GB/s
Render Config
5
Compute Units
6
320
Shading Units
384
20
TMUs
24
8
ROPs
8
16 KB (per CU)
L1 Cache
16 KB (per CU)
128 KB
L2 Cache
256 KB
Theoretical Performance
8.240 GPixel/s
Pixel Rate
7.520 GPixel/s
20.60 GTexel/s
Texture Rate
22.56 GTexel/s
659.2 GFLOPS
FP32 (float)
721.9 GFLOPS
41.20 GFLOPS
FP64 (double)
-
Board Design
18W
TDP
Unknown
No outputs
Outputs
Portable Device Dependent
None
Power Connectors
-
Graphics Processor
Exo
GPU Name
Topaz
Exo PRO
GPU Variant
Topaz PRO
(216-0858030)
GCN 1.0
Architecture
GCN 3.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
0.69 billion
Transistors
1.55 billion
56 mm²
Die Size
125 mm²
Graphics Features
12 (11_1)
DirectX
12 (12_0)
4.6
OpenGL
4.6
1.2
OpenCL
2.1
1.2
Vulkan
1.2.170
5.0
Shader Model
6.5
