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AMD Radeon R9 390X

Graphics Processor
Grenada
Cores
2816
TMUs
176
ROPs
64
Memory Size
8 GB
Memory Type
GDDR5
Bus Width
512 bit
The Radeon R9 390X is a high-end graphics card by AMD, launched in June 2015. Built on the 28 nm process, and based on the Grenada graphics processor, in its Grenada XT variant, the card supports DirectX 12.0. The Grenada graphics processor is a large chip with a die area of 438 mm² and 6,200 million transistors. It features 2816 shading units, 176 texture mapping units and 64 ROPs. AMD has placed 8,192 MB GDDR5 memory on the card, which are connected using a 512-bit memory interface. The GPU is operating at a frequency of 1050 MHz, memory is running at 1500 MHz.
Being a dual-slot card, the AMD Radeon R9 390X draws power from 1x 6-pin + 1x 8-pin power connectors, with power draw rated at 275 W maximum. Display outputs include: 2x DVI, 1x HDMI, 1x DisplayPort. Radeon R9 390X is connected to the rest of the system using a PCI-Express 3.0 x16 interface. The card measures 275 mm in length, and features a dual-slot cooling solution. Its price at launch was 429 US Dollars.

Graphics Processor

GPU Name
Grenada
GPU Variant
Grenada XT
(215-0880004)
Architecture
GCN 2.0
Foundry
TSMC
Process Size
28 nm
Transistors
6,200 million
Die Size
438 mm²

Graphics Card

Release Date
Jun 18th, 2015
Generation
Pirate Islands
(R9 300)
Production
Active
Launch Price
429 USD
Bus Interface
PCIe 3.0 x16
Reviews
60 in our database

Relative Performance

2%
GeForce 210
3%
GeForce 9400 GT
3%
Radeon HD 4550
4%
Radeon HD 5450
5%
Radeon HD 6450
5%
GeForce GT 520
7%
GeForce GT 220
9%
GeForce GT 430
9%
Radeon HD 5570
10%
Radeon HD 4670
10%
GeForce GT 440
10%
GeForce GT 240
12%
GeForce 9600 GT
13%
Radeon HD 5670
13%
GeForce GT 640
14%
GeForce 9800 GT
14%
Radeon HD 6670
15%
Radeon HD 4830
16%
Radeon HD 4770
17%
Radeon HD 4850
17%
GeForce GTS 250
18%
GeForce GTS 450
18%
Radeon HD 5750
21%
Radeon HD 7750
21%
Radeon HD 5770
21%
GeForce GTX 260
22%
Radeon HD 4870
22%
Radeon Vega 8
22%
GeForce GTX 550 Ti
22%
GeForce GTX 650
23%
Radeon HD 5830
25%
Radeon HD 6790
25%
Radeon HD 4890
26%
GeForce GTX 460
26%
Radeon RX Vega 11
26%
GeForce GT 1030
27%
GeForce GTX 275
27%
Radeon HD 7770 GHz Edition
27%
GeForce GTX 280
27%
GeForce GTX 465
29%
Radeon HD 6850
29%
GeForce GTX 285
31%
Radeon HD 5850
32%
GeForce GTX 650 Ti
32%
Radeon HD 7790
33%
Radeon RX 550
33%
GeForce GTX 470
35%
Radeon HD 6870
37%
Radeon HD 5870
38%
GeForce GTX 560 Ti
38%
Radeon HD 4870 X2
39%
GeForce GTX 750 Ti
39%
Radeon HD 6950
41%
GeForce GTX 295
41%
GeForce GTX 650 Ti Boost
41%
Radeon HD 7850
42%
GeForce GTX 480
44%
Radeon HD 6970
45%
Radeon R7 265
46%
Radeon RX 460
46%
Radeon R7 370
46%
GeForce GTX 660
46%
GeForce GTX 570
47%
Radeon RX 560
49%
GeForce GTX 950
50%
Radeon HD 7870 GHz Edition
51%
Radeon R9 270X
52%
GeForce GTX 660 Ti
52%
GeForce GTX 580
52%
GeForce GTX 1050
53%
Radeon HD 7950
54%
Radeon HD 5970
55%
GeForce GTX 760
59%
GeForce GTX 670
61%
GeForce GTX 960
62%
Radeon R9 380
63%
Radeon R9 285
63%
Radeon HD 7970
64%
GeForce GTX 680
66%
GeForce GTX 1050 Ti
67%
GeForce GTX 770
69%
Radeon HD 6990
70%
Radeon R9 280X
71%
GeForce GTX 590
71%
Radeon HD 7970 GHz Edition
79%
GeForce GTX 780
82%
GeForce GTX 1650
87%
Radeon RX 470
88%
Radeon R9 290
93%
Radeon RX 570
94%
Radeon R9 390
95%
Radeon R9 290X
96%
GeForce GTX 970
97%
GeForce GTX TITAN
99%
GeForce GTX 780 Ti
100%
Radeon R9 390X
100%
Radeon HD 7990
101%
Radeon RX 480
102%
GeForce GTX 690
107%
Radeon RX 580
109%
GeForce GTX 980
111%
Radeon R9 FURY
111%
GeForce GTX 1060 6 GB
116%
Radeon RX 590
122%
Radeon R9 295X2
123%
GeForce GTX 1660
124%
Radeon R9 FURY X
126%
GeForce GTX 980 Ti
129%
GeForce GTX TITAN X
141%
GeForce GTX 1660 Ti
141%
GeForce GTX 1070
150%
Radeon RX Vega 56
159%
GeForce GTX 1070 Ti
164%
Radeon RX Vega 64
166%
GeForce GTX 1080
166%
GeForce RTX 2060
173%
Radeon RX 5700
186%
GeForce RTX 2060 SUPER
193%
GeForce RTX 2070
198%
Radeon RX 5700 XT
200%
Radeon VII
205%
TITAN X Pascal
211%
GeForce GTX 1080 Ti
213%
GeForce RTX 2070 SUPER
227%
GeForce RTX 2080
266%
GeForce RTX 2080 Ti
Based on TPU review data: "Performance Summary" at 1920x1080

Clock Speeds

GPU Clock
1050 MHz
Memory Clock
1500 MHz
6000 MHz effective

Memory

Memory Size
8 GB
Memory Type
GDDR5
Memory Bus
512 bit
Bandwidth
384.0 GB/s

Render Config

Shading Units
2816
TMUs
176
ROPs
64
Compute Units
44
L1 Cache
16 KB (per CU)
L2 Cache
1024 KB

Theoretical Performance

Pixel Rate
67.20 GPixel/s
Texture Rate
184.8 GTexel/s
FP32 (float) performance
5.914 TFLOPS
FP64 (double) performance
739.2 GFLOPS (1:8)

Board Design

Slot Width
Dual-slot
Length
10.83 inches
275 mm
TDP
275 W
Outputs
2x DVI
1x HDMI
1x DisplayPort
Power Connectors
1x 6-pin + 1x 8-pin
Board Number
C671,
C679-37

Graphics Features

DirectX
12.0 (12_0)
OpenGL
4.6
OpenCL
2.0
Vulkan
1.1.101
Shader Model
6.3

Grenada GPU Notes

Architecture Codename: Volcanic Islands
Chip Variant: Hawaii
CLRX Version: GCN 1.1
Graphics/Compute: GFX7 (gfx702)
Display Core Engine: 8.5
Unified Video Decoder: 4.2
Video Compression Engine: 2.0

Retail boards based on this design (17)

Name GPU Clock Memory Clock Other Changes
AMD Radeon R9 390X Engineering Sample 1050 MHz 1500 MHz 9.94 inches/252 mm
ASUS R9 390X DirectCU II 1050 MHz 1500 MHz 11.3 inches/287 mm
ASUS STRIX R9 390X DirectCU III OC 1070 MHz 1500 MHz 11.8 inches/300 mm
Club 3D R9 390X royalQueen 1060 MHz 1500 MHz 12 inches/305 mm
GIGABYTE R9 390X G1 Gaming 1060 MHz 1500 MHz 9.57 inches/243 mm, 1x DVI 1x HDMI 3x DisplayPort
GIGABYTE R9 390X WindForce 2X 1050 MHz 1500 MHz 9.57 inches/243 mm, 1x DVI 1x HDMI 3x DisplayPort
HIS R9 390X IceQ X2 1050 MHz 1500 MHz 11.7 inches/297 mm
HIS R9 390X IceQ X2 II 1060 MHz 1500 MHz 11.7 inches/297 mm
HIS R9 390X IceQ X2 OC 1070 MHz 1500 MHz 11.7 inches/297 mm
MSI R9 390X Gaming 1080 MHz 1525 MHz 10.9 inches/277 mm
PowerColor Devil R9 390X 1100 MHz 1525 MHz 11.22 inches/285 mm
PowerColor PCS+ R9 390X 1060 MHz 1500 MHz 12 inches/305 mm
Sapphire Nitro R9 390X w/ Back Plate 1060 MHz 1500 MHz 12.1 inches/307 mm, 1x DVI 1x HDMI 3x DisplayPort
Sapphire Tri-X R9 390X 1055 MHz 1500 MHz 12.13 inches/308 mm, 1x DVI 1x HDMI 3x DisplayPort
Sapphire Tri-X R9 390X w/ Back Plate 1080 MHz 1500 MHz 12.1 inches/307 mm, 1x DVI 1x HDMI 3x DisplayPort
XFX R9 390X Double Dissipation 1050 MHz 1500 MHz 11.61 inches/295 mm
XFX R9 390X Double Dissipation Black 1090 MHz 1500 MHz 11.61 inches/295 mm