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 Pro W6800X Duo
CORE STATE
Navi 21
VRAM
32 GB
CLOCK SPEED
1967 MHz
TDP
400 W
BUS WIDTH
256 bit
ARCHITECTURE
RDNA 2.0
PROCESS
7 nm
LAUNCH DATE
2021
PERFORMANCE BENCHMARKS
geekbench_metal
geekbench_opencl
geekbench_vulkan
DETAILED SPECIFICATIONS
SPECIFICATION
Pro 555
Pro W6800X Duo
Core Specs
Shading Units
768
3,840
+400.0%
Shaders
768
3,840
+400.0%
TMUs
48
240
+400.0%
ROPs
16
96
+500.0%
Compute Units
12
60
+400.0%
Clocks
Base Clock
—
1800 MHz
Boost Clock
—
1967 MHz
GPU Clock
850 MHz
—
Memory Clock
1275 MHz
5.1 Gbps effective
2000 MHz
16 Gbps effective
Memory
Memory Size
2 GB
32 GB
VRAM (MB)
2,048
32,768
+1500.0%
Memory Type
GDDR5
GDDR6
Memory Bus
128 bit
256 bit
Bandwidth
81.60 GB/s
512.0 GB/s
Cache
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
1024 KB
4 MB
L3 Cache
—
128 MB
L0 Cache
—
32 KB per WGP
Performance
Pixel Rate
13.60 GPixel/s
188.8 GPixel/s
Texture Rate
40.80 GTexel/s
472.1 GTexel/s
FP32 (TFLOPS)
1,305.6 GFLOPS
15.11 TFLOPS
FP64 (TFLOPS)
81.60 GFLOPS (1:16)
944.2 GFLOPS (1:16)
FP16 (TFLOPS)
1,305.6 GFLOPS (1:1)
30.21 TFLOPS (2:1)
AI/RT
RT Cores
—
60
Power
TDP
75 W
400 W
TDP (W)
75
400
+433.3%
Suggested PSU
—
800 W
Power Connectors
None
—
Architecture
Architecture
GCN 4.0
RDNA 2.0
GPU Name
Polaris 21
Navi 21
Generation
Radeon Pro Mac
(500 Series)
Radeon Pro Mac
(Navi II Series)
Process Size
14 nm
7 nm
Transistors
3,000 million
26,800 million
Die Size
123 mm²
520 mm²
Foundry
GlobalFoundries
TSMC
Density
24.4M / mm²
51.5M / mm²
API Support
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
Vulkan
1.3
1.4
OpenCL
2.1
2.1
Shader Model
6.7
6.8
Physical
Slot Width
IGP
Quad-slot
Length
—
267 mm
10.5 inches
Height
—
120 mm
4.7 inches
Outputs
Portable Device Dependent
1x HDMI 2.14x Thunderbolt
Bus Interface
PCIe 3.0 x8
Apple MPX
Other
Launch Price
—
4,999 USD
Production
End-of-life
End-of-life