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 PRO W6800
CORE STATE
Navi 21
VRAM
32 GB
CLOCK SPEED
2322 MHz
TDP
250 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 555X
PRO W6800
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
—
1575 MHz
Boost Clock
—
2322 MHz
GPU Clock
907 MHz
—
Memory Clock
1470 MHz
5.9 Gbps effective
2000 MHz
16 Gbps effective
Memory
Memory Size
4 GB
32 GB
VRAM (MB)
4,096
32,768
+700.0%
Memory Type
GDDR5
GDDR6
Memory Bus
128 bit
256 bit
Bandwidth
94.08 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
14.51 GPixel/s
222.9 GPixel/s
Texture Rate
43.54 GTexel/s
557.3 GTexel/s
FP32 (TFLOPS)
1,393.2 GFLOPS
17.83 TFLOPS
FP64 (TFLOPS)
87.07 GFLOPS (1:16)
1,114.6 GFLOPS (1:16)
FP16 (TFLOPS)
1,393.2 GFLOPS (1:1)
35.67 TFLOPS (2:1)
AI/RT
RT Cores
—
60
Power
TDP
75 W
250 W
TDP (W)
75
250
+233.3%
Suggested PSU
—
600 W
Power Connectors
None
1x 6-pin + 1x 8-pin
Architecture
Architecture
GCN 4.0
RDNA 2.0
GPU Name
Polaris 21
Navi 21
Generation
Radeon Pro Mac
(500X Series)
Radeon Pro Navi
(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
Dual-slot
Length
—
267 mm
10.5 inches
Height
—
120 mm
4.7 inches
Outputs
Portable Device Dependent
6x mini-DisplayPort 1.4a
Bus Interface
PCIe 3.0 x8
PCIe 4.0 x16
Other
Launch Price
—
2,249 USD
Production
End-of-life
End-of-life
Predecessor
—
Radeon Pro Vega