AMD officially introduces Radeon 300 “Caribbean Islands” series

Published: 18th Jun 2015, 10:18 GMT

Today is the day you can finally read reviews of Radeon 300 graphics cards, and then go to your local shop and buy one.
This post is only about ‘retail’ Radeon 300 models, not the OEM parts, also Fury X is not launching today, although some slides are finally made public.

AMD Radeon 300: Not just a Rebrand?

Take a seat, we need to have a serious talk about Radeon 300 series. Ever since the news broke about Radeon 300 series being a rebranded hardware we became worried. It probably wouldn’t be a problem if AMD wasn’t recycling so many GPUs at the same time. We have Pitcairn, Bonaire, Tonga and Hawaii. The first two are begging to be replaced, Tonga and Hawaii are relatively new and support all the latest technology AMD introduced in the last 2 years. However the problem is not about the software and technology it supports, the problem is power efficiency, which is much worse on Radeon hardware. This chart should give you the idea:

AMD Radeon 300 vs NVIDIA GeForce 900
Radeon 300TDPGeForce 900
AMR Radeon R9 Fury X275W250WGeForce GTX 980 Ti
AMD Radeon R9 390X275W165WGeForce GTX 980
AMD Radeon R9 390275W148WGeForce GTX 970
AMD Radoen R9 380190W120WGeForce GTX 960
AMD Radeon R7 370110W60WGeForce GTX 750 Ti
AMD Radeon R7 360100W55WGeForce GTX 750

AMD is not hiding the fact that these cards are based on old hardware, but they are defending themselves claiming that architectural improvements were made. Here is a quote from “Moor Insights & Strategy”  analysis, I will leave the interpretation to you:

The AMD Caribbean Islands Family: Not Just a Rebrand (..)

AMD has been hard at work over the past year-and-a-half optimizing and re-architecting the microcontrollers within the ASICs themselves. Combined with the improvements to their manufacturing process, AMD has been able to squeeze more performance out of each of their cards and increase performance while maintaining the same price tier as its predecessor.

  • The R9 390 and R9 390X replace the R9 290 and R9 290X and are both 300 GFLOPS faster than their predecessors (5,100 GFLOPS and 5,900 GFLOPS respectively) without increasing power in typical workloads.
  • The R9 380 also benefits from the maturing of the 28nm process technology and AMD’s optimizations. It gains roughly 200 GFLOPS in performance: from 3,290 GFLOPS to 3,480 GFLOPS in compute performance.
  • The R7 370’s compute capability of 2,000 GFLOPS is also faster by 200 GFLOPS than its predecessor’s (R7 265) 1,800 GFLOPS.
  • The R7 360 has a compute performance of 1,610 GFLOPS, slightly more than the 1,536 GFLOPS of the R7 260.

In all cases, AMD increased performance and also added many features that previous generations did not have. Some of those features are enabled through the driver and others are done in hardware. But all of the GPUs listed above will support DirectX 12, Vulkan, and Mantle graphics APIs.

AMD Radeon 300 specifications

AMD Radeon 300 Series (June 18th)
R9 390XR9 390R9 380R7 370R7 360
PictureR9 390X R9 390 smallR9 390X R9 390 smallR9 380 R7 370 smallR9 380 R7 370 smallR7 360 small
GPU CodenameGRENADA XTGRENADA PROANTIGUA PROTRINIDAD PROTOBAGO PRO
Previous GPU CodenameHAWAII XTHAWAII PROTONGA PROPITCAIRN PROBONARIE PRO
Stream Cores2816256017921024768
TMUs1761601126448
ROPs6464323216
Computing Power5.9 TFLOPS5.1 TFLOPS3.5 TFLOPS2.0 TFLOPS1.6 TFLOPS
Core clock1050 MHz1000 MHz970 MHz975 MHz1050 MHz
Memory Clock1500 MHz1500 MHz1425 MHz1400 MHz1625 MHz
Mem. Clk. Effective6000 MHz6000 MHz5700 MHz5700 MHz6500 MHz
Memory Bus512-bit512-bit256-bit256-bit128-bit
Memory8GB GDDR58GB GDDR52/4GB GDDR52/4GB GDDR52GB GDDR5
Bandwidth384 GB/s384 GB/s182 GB/s179 GB/s104 GB/s
TDP275W275W190W110W100W
MSRP429 USD329 USD199 USD149 USD109 USD

AMD Radeon R9 390X and R9 390

AMD R9 390 series 2AMD R9 390 series

AMD Radeon R9 390 series are based on Grenada silicon with up to 2816 Stream processing units. The R9 390X has 2816, whereas R9 390 comes with 2560 stream cores. Both cards are equipped with 8GB GDDR5 memory across 512-bit interface.

These cards are direct competitors to GeForce GM204 Maxwell series, which are GTX 980 and GTX 970 respectively. The R9 390 series will perform better at higher resolution, due to much bigger frame buffer, but they won’t be as power efficient as Maxwell architecture.

AMD announced R9 390X will be available for 430 USD, while R9 390 is 100 USD cheaper.

 AMD Radeon R9 380

AMD R9 380 seriesAMD R9 380 series 2

Antigua-based Radeon R9 380 also known as R9 285 in disguise has 1792 Stream Cores and up to 4GB of GDDR5 memory. Tonga GPU was released in September and according to previous leaks, it’s the same IP level of Graphics Core Next architecture as Fiji. You can buy R9 380 for 200 USD.

AMD Radeon R7 300: R7 370 and R7 360

R7 360 series R7 360 series 2

The Radeon R7 300 series are based on the oldest hardware from AMD warehouse. The R7 370 based on Trinidad (Pitcairn) is the oldest GPU with no support for FreeSync or TrueAudio. R7 370 has 1024 Stream Cores and up to 4GB of GDDR5 memory. The Radeon R7 360 is priced at 150 USD.

The R7 360 based on Tobago GPU (Bonaire) comes with 768 Stream cores  and 2GB GDDR5 memory. Radeon R7 360 is available at 110 USD. Unlike R7 370, it supports TrueAudio and FreeSync.

AMD Radeon 300 Technology Support

​AMD Radeon 300 Technology Support
R9 390(X)R9 380R7 370R7 360
DirectX API12121212
OpenGL API4.54.54.54.5
OpenCL API2.02.02.02.0
Mantle APIYESYESYESYES
Vulkan APIYESYESYESYES
PCI EXPRESS3.03.03.03.0
VIRTUAL SUPER RESOLUTION (VSR)YESYESYESYES
FREESYNC TECHNOLOGYYESYESNOYES
LIQUIDVR TECHNOLOGYYESYESYESYES
4K RESOLUTION SUPPORTYESYESYESYES
FRAME RATE TARGET CONTROL (FRTC)YESYESYESYES
DDMA AUDIOYESYESYESYES
HDMI (WITH 4K, STEREO 3D, DEEP COLOR & X.V.COLOR)YESYESYESYES
POWERTUNEYESYESYESYES
ZEROCORE POWERYESYESYESYES
TRUEAUDIOYESYESNOYES
EYEFINITY TECHNOLOGY (MAX DISPLAYS)Up to 6 displays with DisplayPort MST hubUp to 6 displays with DisplayPort MST hubUp to 6 displays with DisplayPort MST hubUp to 6 displays with DisplayPort MST hub
HD3DYESYESYESYES
VIDEO CODEC ENGINE (VCE) (WITH H.264, MPEG-4 ASP, MPEG-2, VC-1 & BLU-RAY 3D)YESYESYESYES
CROSSFIRE4-way2-way2-way2-way
XDMA CROSSFIREYESYESNONO

Official performance

AMD Radeon 300 reviews

Slide source: Eteknix


by WhyCry

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