GPU Comparison
RADEON
AMD Radeon Pro 555X
CORE STATE
Polaris 21
VRAM
4 GB
CLOCK SPEED
—
TDP
75 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2018
VS
RADEON
Radeon RX 560X
CORE STATE
Polaris 21
VRAM
4 GB
CLOCK SPEED
1275 MHz
TDP
75 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2018
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
Pro 555X
RX 560X
Core Specs
Shading Units
768
1,024
+33.3%
Shaders
768
1,024
+33.3%
TMUs
48
64
+33.3%
ROPs
16
16
0.0%
Compute Units
12
16
+33.3%
Clocks
Base Clock
—
1175 MHz
Boost Clock
—
1275 MHz
GPU Clock
907 MHz
—
Memory Clock
1470 MHz
5.9 Gbps effective
1750 MHz
7 Gbps effective
Memory
Memory Size
4 GB
4 GB
VRAM (MB)
4,096
4,096
0.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
128 bit
Bandwidth
94.08 GB/s
112.0 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
1024 KB
1024 KB
Performance
Pixel Rate
14.51 GPixel/s
20.40 GPixel/s
Texture Rate
43.54 GTexel/s
81.60 GTexel/s
FP32 (TFLOPS)
1,393.2 GFLOPS
2.611 TFLOPS
FP64 (TFLOPS)
87.07 GFLOPS (1:16)
163.2 GFLOPS (1:16)
FP16 (TFLOPS)
1,393.2 GFLOPS (1:1)
2.611 TFLOPS (1:1)
Power
TDP
75 W
75 W
TDP (W)
75
75
0.0%
Suggested PSU
—
250 W
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
GCN 4.0
GPU Name
Polaris 21
Polaris 21
Generation
Radeon Pro Mac
(500X Series)
Polaris
(RX 500X)
Process Size
14 nm
14 nm
Transistors
3,000 million
3,000 million
Die Size
123 mm²
123 mm²
Foundry
GlobalFoundries
GlobalFoundries
Density
24.4M / mm²
24.4M / mm²
API Support
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
Vulkan
1.3
1.3
OpenCL
2.1
2.1
Shader Model
6.7
6.7
Physical
Slot Width
IGP
Dual-slot
Length
—
170 mm
6.7 inches
Outputs
Portable Device Dependent
1x DVI1x HDMI 2.0b1x DisplayPort 1.4a
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x8
Other
Production
End-of-life
End-of-life
Predecessor
—
Polaris
Successor
—
Vega