GPU Comparison
RADEON
AMD Radeon R5 M255
CORE STATE
Topaz
VRAM
2 GB
CLOCK SPEED
940 MHz
TDP
—
BUS WIDTH
128 bit
ARCHITECTURE
GCN 3.0
PROCESS
28 nm
LAUNCH DATE
2014
VS
RADEON
Radeon R8 M445DX
CORE STATE
Meso
VRAM
System Shared
CLOCK SPEED
1021 MHz
TDP
—
BUS WIDTH
System Shared
ARCHITECTURE
GCN 3.0
PROCESS
28 nm
LAUNCH DATE
2016
PERFORMANCE BENCHMARKS
geekbench_opencl
DETAILED SPECIFICATIONS
SPECIFICATION
R5 M255
R8 M445DX
Core Specs
Shading Units
384
320
-16.7%
Shaders
384
320
-16.7%
TMUs
24
20
-16.7%
ROPs
8
8
0.0%
Compute Units
6
5
-16.7%
Clocks
Base Clock
925 MHz
780 MHz
Boost Clock
940 MHz
1021 MHz
Memory Clock
1000 MHz
2 Gbps effective
System Shared
Memory
Memory Size
2 GB
System Shared
VRAM (MB)
2,048
—
Memory Type
DDR3
System Shared
Memory Bus
128 bit
System Shared
Bandwidth
32.00 GB/s
System Dependent
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
256 KB
128 KB
Performance
Pixel Rate
7.520 GPixel/s
8.168 GPixel/s
Texture Rate
22.56 GTexel/s
20.42 GTexel/s
FP32 (TFLOPS)
721.9 GFLOPS
653.4 GFLOPS
FP64 (TFLOPS)
45.12 GFLOPS (1:16)
40.84 GFLOPS (1:16)
FP16 (TFLOPS)
721.9 GFLOPS (1:1)
653.4 GFLOPS (1:1)
Architecture
Architecture
GCN 3.0
GCN 3.0
GPU Name
Topaz
Meso
Generation
Gem System
(R5 M200)
Gem System Hybrid
(Rx M400)
Process Size
28 nm
28 nm
Transistors
1,550 million
1,550 million
Die Size
125 mm²
125 mm²
Foundry
TSMC
TSMC
Density
12.4M / mm²
12.4M / mm²
API Support
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
Vulkan
1.2.170
1.2.170
OpenCL
2.1
2.1
Shader Model
6.5
6.5
Physical
Slot Width
—
IGP
Outputs
—
Portable Device Dependent
Bus Interface
PCIe 3.0 x8
IGP
Other
Production
End-of-life
End-of-life
Predecessor
Solar System
—
Successor
Polaris Mobile
—