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 580 2048SP
CORE STATE
Polaris 20
VRAM
4 GB
CLOCK SPEED
1284 MHz
TDP
150 W
BUS WIDTH
256 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2018
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
3dmark_3dmark_steel_nomad_dx12
DETAILED SPECIFICATIONS
SPECIFICATION
Pro 555X
RX 580 2048SP
Core Specs
Shading Units
768
2,048
+166.7%
Shaders
768
2,048
+166.7%
TMUs
48
128
+166.7%
ROPs
16
32
+100.0%
Compute Units
12
32
+166.7%
Clocks
Base Clock
—
1168 MHz
Boost Clock
—
1284 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
256 bit
Bandwidth
94.08 GB/s
224.0 GB/s
Cache
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
1024 KB
2 MB
Performance
Pixel Rate
14.51 GPixel/s
41.09 GPixel/s
Texture Rate
43.54 GTexel/s
164.4 GTexel/s
FP32 (TFLOPS)
1,393.2 GFLOPS
5.259 TFLOPS
FP64 (TFLOPS)
87.07 GFLOPS (1:16)
328.7 GFLOPS (1:16)
FP16 (TFLOPS)
1,393.2 GFLOPS (1:1)
5.259 TFLOPS (1:1)
Power
TDP
75 W
150 W
TDP (W)
75
150
+100.0%
Suggested PSU
—
450 W
Power Connectors
None
1x 8-pin
Architecture
Architecture
GCN 4.0
GCN 4.0
GPU Name
Polaris 21
Polaris 20
Generation
Radeon Pro Mac
(500X Series)
Polaris
(RX 500)
Process Size
14 nm
14 nm
Transistors
3,000 million
5,700 million
Die Size
123 mm²
232 mm²
Foundry
GlobalFoundries
GlobalFoundries
Density
24.4M / mm²
24.6M / 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
—
241 mm
9.5 inches
Outputs
Portable Device Dependent
1x DVI1x HDMI 2.0b3x DisplayPort 1.4a
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
—
Arctic Islands
Successor
—
Vega