AMD Radeon Pro 450 vs AMD Radeon RX 550

Graphics Processor

GPU model Baffin Lexa
GPU variant Baffin LE Lexa PRO (215-0904018)
Architecture GCN 4.0 GCN 4.0
Foundry GlobalFoundries GlobalFoundries
Manufacturing process 14 nm 14 nm
Number of transistors 3,000 million 2,200 million
Die size 123 mm² 103 mm²

Mobile graphics

Release date Oct 30th, 2016
Generation Radeon Pro Mac (400 Series)
Production Active
Interface PCIe 3.0 x8

Clocks

GPU clock 800 MHz
Memory clock 1270 MHz 5.1 Gbps effective 1750 MHz 7 Gbps effective
Base clock 1100 MHz
Boost clock 1183 MHz

Memory Configuration

Memory size 2 GB 2 GB
Memory type GDDR5 GDDR5
Memory bus width 128 bit 128 bit
Bandwidth 81.28 GB/s 112.0 GB/s

Render Configuration

Shading units 640 512
TMUs 40 32
ROPs 16 16
Compute units 10 8
Cache L1 16 KB (per CU) 16 KB (per CU)
Cache L2 1024 KB 512 KB

Performance

Pixel rate 12.80 GPixel/s 18.93 GPixel/s
Texture rate 32.00 GTexel/s 37.86 GTexel/s
FP16 (half) performance 1,024 GFLOPS (1:1) 1,211 GFLOPS (1:1)
FP32 (float) performance 1,024 GFLOPS 1,211 GFLOPS
FP64 (double) performance 64.00 GFLOPS (1:16) 75.71 GFLOPS (1:16)

Dimensions & Outputs

Slot width MXM Module Dual-slot
TDP 35 W 50 W
Outputs No outputs 1x DVI1x HDMI1x DisplayPort
Length 145 mm 5.7 inches
Suggested PSU 250 W
Power connectors None
Board number D090-01

API Support & Features

DirectX 12 (12_0) 12 (12_0)
OpenGL 4.6 4.6
OpenCL 2.1 2.1
Vulkan 1.2 1.2
Shader model 6.4 6.4

Other Features

Graphics Card

Release date Apr 20th, 2017
Generation Polaris
Production End-of-life
Launch price 79 USD
Interface PCIe 3.0 x8
Predecessor Arctic Islands
Successor Vega

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