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AMD Radeon Pro 555

Polaris 21
Graphics Processor
768
Cores
48
TMUs
16
ROPs
2 GB
Memory Size
GDDR5
Memory Type
128 bit
Bus Width
AMD Polaris 21 Photo
The Radeon Pro 555 is a professional graphics card by AMD, launched in June 2017. Built on the 14 nm process, and based on the Polaris 21 graphics processor, in its Polaris 21 PRO variant, the card supports DirectX 12.0. The Polaris 21 graphics processor is an average sized chip with a die area of 123 mm² and 3,000 million transistors. Unlike the fully unlocked Radeon RX 560X, which uses the same GPU but has all 1024 shaders enabled, AMD has disabled some shading units on the Radeon Pro 555 to reach the product's target shader count. It features 768 shading units, 48 texture mapping units and 16 ROPs. AMD has placed 2,048 MB GDDR5 memory on the card, which are connected using a 128-bit memory interface. The GPU is operating at a frequency of 850 MHz, memory is running at 1275 MHz.
Being a igp card, the AMD Radeon Pro 555 does not require any additional power connector, its power draw is rated at 75 W maximum. This device has no display connectivity, as it is not designed to have monitors connected to it. Radeon Pro 555 is connected to the rest of the system using a PCI-Express 3.0 x8 interface.

Graphics Processor

GPU Name
Polaris 21
GPU Variant
Polaris 21 PRO
Architecture
GCN 4.0
Foundry
TSMC
Process Size
14 nm
Transistors
3,000 million
Die Size
123 mm²

Graphics Card

Release Date
Jun 5th, 2017
Generation
Radeon Pro
(500)
Production
Active
Bus Interface
PCIe 3.0 x8

Relative Performance

7%
8%
10%
13%
16%
17%
20%
27%
27%
29%
31%
32%
36%
39%
41%
43%
45%
46%
49%
52%
53%
54%
56%
64%
65%
66%
67%
67%
68%
68%
72%
76%
77%
80%
81%
82%
82%
83%
83%
84%
88%
90%
97%
98%
98%
100%
Radeon Pro 555
103%
103%
107%
114%
117%
118%
120%
121%
125%
126%
127%
129%
135%
138%
140%
140%
141%
141%
153%
154%
158%
159%
160%
161%
162%
165%
165%
170%
183%
187%
192%
193%
195%
197%
202%
207%
212%
217%
220%
220%
244%
268%
272%
290%
292%
296%
300%
302%
304%
308%
309%
311%
314%
330%
337%
342%
342%
376%
382%
389%
418%
459%
475%
512%
512%
540%
603%
632%
648%
706%
803%
Based on TPU review data: "Performance Summary" at 1920x1080
Performance estimated based on architecture, shader count and clocks.

Clock Speeds

GPU Clock
850 MHz
Memory Clock
1275 MHz
5100 MHz effective

Memory

Memory Size
2 GB
Memory Type
GDDR5
Memory Bus
128 bit
Bandwidth
81.60 GB/s

Render Config

Shading Units
768
TMUs
48
ROPs
16
Compute Units
12

Theoretical Performance

Pixel Rate
13.60 GPixel/s
Texture Rate
40.80 GTexel/s
FP16 (half) performance
1,306 GFLOPS (1:1)
FP32 (float) performance
1,306 GFLOPS
FP64 (double) performance
81.60 GFLOPS (1:16)

Board Design

Slot Width
IGP
TDP
75 W
Outputs
No outputs
Power Connectors
None

Graphics Features

DirectX
12.0 (12_0)
OpenGL
4.5
OpenCL
2.0
Vulkan
1.1.82
Shader Model
6.0

Polaris 21 GPU Notes

Chip Variant: Baffin / Polaris 11
Graphics/Compute: GFX8 (gfx803)
Display Core Engine: 11.2
Unified Video Decoder: 6.3
Video Compression Engine: 3.4
ROCm Support