GPU Comparison
RADEON
AMD Radeon Pro 555
CORE STATE
Polaris 21
VRAM
2 GB
CLOCK SPEED
—
TDP
75 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2017
VS
RADEON
Radeon R5 M420
CORE STATE
Jet
VRAM
4 GB
CLOCK SPEED
850 MHz
TDP
—
BUS WIDTH
64 bit
ARCHITECTURE
GCN 1.0
PROCESS
28 nm
LAUNCH DATE
2016
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
Pro 555
R5 M420
Core Specs
Shading Units
768
320
-58.3%
Shaders
768
320
-58.3%
TMUs
48
20
-58.3%
ROPs
16
8
-50.0%
Compute Units
12
5
-58.3%
Clocks
Base Clock
—
780 MHz
Boost Clock
—
850 MHz
GPU Clock
850 MHz
—
Memory Clock
1275 MHz
5.1 Gbps effective
1000 MHz
2 Gbps effective
Memory
Memory Size
2 GB
4 GB
VRAM (MB)
2,048
4,096
+100.0%
Memory Type
GDDR5
DDR3
Memory Bus
128 bit
64 bit
Bandwidth
81.60 GB/s
16.00 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
1024 KB
128 KB
Performance
Pixel Rate
13.60 GPixel/s
6.800 GPixel/s
Texture Rate
40.80 GTexel/s
17.00 GTexel/s
FP32 (TFLOPS)
1,305.6 GFLOPS
544.0 GFLOPS
FP64 (TFLOPS)
81.60 GFLOPS (1:16)
34.00 GFLOPS (1:16)
FP16 (TFLOPS)
1,305.6 GFLOPS (1:1)
—
Power
TDP
75 W
—
TDP (W)
75
—
Power Connectors
None
—
Architecture
Architecture
GCN 4.0
GCN 1.0
GPU Name
Polaris 21
Jet
Generation
Radeon Pro Mac
(500 Series)
Gem System
(R5 M400)
Process Size
14 nm
28 nm
Transistors
3,000 million
690 million
Die Size
123 mm²
56 mm²
Foundry
GlobalFoundries
TSMC
Density
24.4M / mm²
12.3M / mm²
API Support
DirectX
12 (12_0)
12 (11_1)
OpenGL
4.6
4.6
Vulkan
1.3
1.2.170
OpenCL
2.1
2.1 (1.2)
Shader Model
6.7
6.5 (5.1)
Physical
Slot Width
IGP
IGP
Outputs
Portable Device Dependent
Portable Device Dependent
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x8
Other
Production
End-of-life
End-of-life
Predecessor
—
Solar System
Successor
—
Polaris Mobile