Radeon Pro 555 vs Radeon R9 390X

Find out if it is worth upgrading your current GPU setup by comparing Radeon Pro 555 and Radeon R9 390X. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between Radeon Pro 555 and Radeon R9 390X. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

Radeon Pro 555 is a Laptop Graphics Card

Note: Radeon Pro 555 is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with Radeon Pro 555 here:

Main Specs

  Radeon Pro 555 Radeon R9 390X
Power consumption (TDP) 75 Watt 275 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x16
Supplementary power connectors None 1 x 6-pin, 1 x 8-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB
Display Connectors No outputs 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon R9 390X has 266% more power consumption, than Radeon Pro 555.
  • Radeon Pro 555 is connected by PCIe 3.0 x8, and Radeon R9 390X uses PCIe 3.0 x16 interface.
  • Radeon Pro 555 is used in Mobile workstations, and Radeon R9 390X - in Desktops.
  • Radeon Pro 555 is build with Polaris architecture, and Radeon R9 390X - with GCN.
  • Radeon Pro 555 is manufactured by 14 nm process technology, and Radeon R9 390X - by 28 nm process technology.
  • Memory clock speed of Radeon Pro 555 is 4030 MHz higher, than Radeon R9 390X.

Game benchmarks

high / 1080p 16−18 50−55
ultra / 1080p 9−10 30−35
QHD / 1440p 4−5 24−27
4K / 2160p 4−5 14−16
low / 720p 30−35 75−80
medium / 1080p 20−22 55−60
The average gaming FPS of Radeon R9 390X in Assassin's Creed Odyssey is 207% more, than Radeon Pro 555.

Full Specs

  Radeon Pro 555 Radeon R9 390X
Architecture Polaris GCN
Code name Polaris 21 Grenada XT
Type Mobile workstation Desktop
Release date 5 June 2017 16 June 2015
Pipelines 768 2816
Core clock speed 855 MHz
Boost Clock 1050 MHz
Transistor count 3,000 million 6,200 million
Manufacturing process technology 14 nm 28 nm
Texture fill rate 40.80 184.8
Floating-point performance 1,306 gflops 5,914 gflops
Length 275 mm
Memory bus width 128 Bit 512 Bit
Memory clock speed 5080 MHz 1050 MHz
Memory bandwidth 81.6 GB/s 384 GB/s
Shared memory - -
DirectX 12 (12_0)
Shader Model 6.4 6.3
OpenGL 4.6 4.6
OpenCL 2.0 2.0
Vulkan 1.2.131 +
FreeSync + +
Bus support PCIe 3.0
HDMI +
Bitcoin / BTC (SHA256) 684 Mh/s
Laptop size large
Eyefinity +
PowerTune +
TrueAudio +
Mantle +
Design reference
Bridgeless CrossFire +
Number of Eyefinity displays 6
DisplayPort support +
CrossFire +
VCE +
DDMA audio +
Ethereum / ETH (DaggerHashimoto) 27.5 Mh/s
High bandwidth memory (HBM) -
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