AMD Radeon R9 390 vs AMD Radeon R9 390X Full Specs

Summary

2,560 Shaders 1GHz	2,816 Shaders 1.05GHz
8GB GDDR5384GB/s	8GB GDDR5384GB/s
Peak·FP32·FP16 5.12 TFLOPS	Peak·FP32·FP16 5.91 TFLOPS
Form Factor PCIe Card	Form Factor PCIe Card
TDP 275W	TDP 275W
Power Connectors 1x 8-Pin 1x 6-Pin	Power Connectors 1x 8-Pin 1x 6-Pin

Theoretical Performance

Clock Speed1000MHz UC·Boost·OC	Clock Speed1050MHz UC·Boost·OC
Peak OPS 5.12 TFLOPSFP32	Peak OPS 5.91 TFLOPSFP32
FP32 5.12 TFLOPS	FP32 5.91 TFLOPS
FP64 640 GFLOPS	FP64 739.2 GFLOPS
Pixel Rate 64 GPixel/s	Pixel Rate 67.2 GPixel/s
Texture Rate 160 GTexel/s	Texture Rate 184.8 GTexel/s

Core Config

Shaders 2,560 Shaders	Shaders 2,816 Shaders
TMUs 160 TMUs	TMUs 176 TMUs
ROPs 64 ROPs	ROPs 64 ROPs
CUs 40 CUs	CUs 44 CUs

Clocks

Boost Clock 1GHz

Boost Clock 1.05GHz

Cache

L1 16KB/CU	L1 16KB/CU
L2 Cache 1MB shared	L2 Cache 1MB shared

Memory

8GB GDDR5	8GB GDDR5
Memory Bus 512-bit	Memory Bus 512-bit
Memory Speed 6GT/s	Memory Speed 6GT/s
Memory Bandwidth 384GB/s	Memory Bandwidth 384GB/s
ECC No	ECC No

Power & Thermals

TDP 275W

TDP 275W

Video Output

Max Resolution 4096x2160	Max Resolution 4096x2160
Refresh Rate Calculator 3840x2160 Resolution4K UHD Refresh Rate 64Hz	Refresh Rate Calculator 3840x2160 Resolution4K UHD Refresh Rate 64Hz
Multi-Monitor 3	Multi-Monitor 3
Adaptive Sync FreeSync	Adaptive Sync FreeSync
DSC Not Supported	DSC Not Supported
HDCP HDCP 1.4	HDCP HDCP 1.4

Ports

1x DisplayPort 1.2 1x HDMI 1.4 2x DVI-D Dual-Link

1x DisplayPort 1.2 1x HDMI 1.4 2x DVI-D Dual-Link

API Support

Shader Model 6.5	Shader Model 6.5
DirectX DirectX 12 Direct3D 12_0	DirectX DirectX 12 Direct3D 12_0
OpenGL 4.6 OpenCL 2.1 Vulkan 1.2	OpenGL 4.6 OpenCL 2.1 Vulkan 1.2
GFX 7	GFX 7

Encoder

Encoder VCE 2.0	Encoder VCE 2.0
Codec AVC (H.264)	Codec AVC (H.264)

Decoder

Decoder UVD 4.2	Decoder UVD 4.2
Codec MPEG-1 MPEG-2 MPEG-4 VC-1 AVC (H.264)	Codec MPEG-1 MPEG-2 MPEG-4 VC-1 AVC (H.264)

Card

Form Factor PCIe Card	Form Factor PCIe Card
PCIe PCIe 3.0 x16 2-Slots	PCIe PCIe 3.0 x16 2-Slots
Height 110mm (4.33") Width 275mm (10.83") Depth 36mm (1.42")	Height 110mm (4.33") Width 275mm (10.83") Depth 36mm (1.42")
Cooling Blower 1x Fan	Cooling Blower 1x Fan
Power Connectors 1x 8-Pin, 1x 6-Pin	Power Connectors 1x 8-Pin, 1x 6-Pin
Multi-GPU Multi-GPU Support Supported Multi-GPU Type CrossFire XDMA	Multi-GPU Multi-GPU Support Supported Multi-GPU Type CrossFire XDMA

Chip

Manufacturer AMD	Manufacturer AMD
Chip Designer AMD	Chip Designer AMD
Architecture GCN 2	Architecture GCN 2
Family Radeon R 300	Family Radeon R 300
Branding	Branding
Codename Hawaii	Codename Hawaii
Chip Variant Hawaii Pro	Chip Variant Hawaii Pro
Market Segment Desktop	Market Segment Desktop
Release Date Jun 18, 2015	Release Date Jun 18, 2015

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node 28nm	Fabrication Node 28nm
Die Size 438mm²	Die Size 438mm²
Transistor Count 6.2B	Transistor Count 6.2B
Transistor Density 14.16 MTr/mm²	Transistor Density 14.16 MTr/mm²

Images