Radeon R5 A220 vs Radeon R5 A255
We compared two Mobile platform GPUs: 1024MB VRAM Radeon R5 A220 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 A255 's Advantages
Boost Clock940MHz
Larger VRAM bandwidth (64.00GB/s vs 14.40GB/s)
224 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon R5 A220
248
Radeon R5 A255
+190%
721
Graphics Card
Jan 2014
Release Date
Jan 2014
All-In-One
Generation
All-In-One
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
925 MHz
-
Boost Clock
940 MHz
900 MHz
Memory Clock
1000 MHz
Memory
1024MB
Memory Size
1024MB
DDR3
Memory Type
GDDR5
64bit
Memory Bus
128bit
14.40GB/s
Bandwidth
64.00GB/s
Render Config
2
Compute Units
6
160
Shading Units
384
8
TMUs
24
4
ROPs
8
8 KB (per CU)
L1 Cache
16 KB (per CU)
128 KB
L2 Cache
256 KB
Theoretical Performance
3.100 GPixel/s
Pixel Rate
7.520 GPixel/s
6.200 GTexel/s
Texture Rate
22.56 GTexel/s
248.0 GFLOPS
FP32 (float)
721.9 GFLOPS
Board Design
35W
TDP
Unknown
1x DVI
1x HDMI 1.3a
Outputs
Portable Device Dependent
None
Power Connectors
-
Graphics Processor
Caicos
GPU Name
Topaz
Caicos XT
(215-0804070)
GPU Variant
Topaz PRO
(216-0858030)
TeraScale 2
Architecture
GCN 3.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
0.37 billion
Transistors
1.55 billion
67 mm²
Die Size
125 mm²
Graphics Features
11.2 (11_0)
DirectX
12 (12_0)
4.4
OpenGL
4.6
1.2
OpenCL
2.1
N/A
Vulkan
1.2.170
5.0
Shader Model
6.5
