Radeon R9 390X vs Radeon RX 460

When comparing Radeon R9 390X and Radeon RX 460, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Radeon R9 390X and Radeon RX 460 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Main Specs

  Radeon R9 390X Radeon RX 460
Power consumption (TDP) 275 Watt 75 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x8
Supplementary power connectors 1 x 6-pin, 1 x 8-pin None
Memory type GDDR5 GDDR5
Maximum RAM amount 4 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort 1x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon R9 390X has 266% more power consumption, than Radeon RX 460.
  • Radeon R9 390X is connected by PCIe 3.0 x16, and Radeon RX 460 uses PCIe 3.0 x8 interface.
  • Both cards are used in Desktops.
  • Radeon R9 390X is build with GCN architecture, and Radeon RX 460 - with Polaris.
  • Radeon R9 390X is manufactured by 28 nm process technology, and Radeon RX 460 - by 14 nm process technology.
  • Radeon R9 390X is 105 mm longer, than Radeon RX 460.
  • Memory clock speed of Radeon RX 460 is 5950 MHz higher, than Radeon R9 390X.

Game benchmarks

high / 1080p 50−55 21−24
ultra / 1080p 30−35 12−14
QHD / 1440p 24−27 7−8
4K / 2160p 14−16 5−6
low / 720p 75−80 40−45
medium / 1080p 55−60 24−27
The average gaming FPS of Radeon R9 390X in Assassin's Creed Odyssey is 126% more, than Radeon RX 460.

Full Specs

  Radeon R9 390X Radeon RX 460
Architecture GCN Polaris
Code name Grenada XT Polaris 11 / Baffin XT
Type Desktop Desktop
Release date 16 June 2015 8 August 2016
Pipelines 2816 896
Core clock speed 1090 MHz
Boost Clock 1050 MHz 1200 MHz
Transistor count 6,200 million 3,000 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 184.8 67.20
Floating-point performance 5,914 gflops 2,150 gflops
Length 275 mm 170 mm
Memory bus width 512 Bit 128 Bit
Memory clock speed 1050 MHz 7000 MHz
Memory bandwidth 384 GB/s 112.0 GB/s
Shared memory - -
DirectX 12 (12_0)
Shader Model 6.3 6.4
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 240 Mh/s
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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