AMD Radeon R9 390X possible specifications and performance leaked

Published: Mar 16th 2015, 13:00 GMT

Please note that this post is tagged as a rumor.

We asked the leaker from previous post if he could share more information about the new Radeon flagship graphics card.
To our surprise, h
e delivered.

Just bear in mind, we were unable to confirm the authenticity of this leak. In fact, I’m still skeptical about 4096 cores, how large would this GPU be? Anyway let’s see what we’ve got here.

AMD Radeon R9 390X: 4096 stream processors

Like we said two days ago the presentation would take place today. It’s a briefing for AIB partners, not for the public.

There are many references to previous leaks. For instance, the memory clock is 1250 MHz, which confirms the Sisoft database entry. Also one slide is titled “King of the hill”, referring to the leak from January, where it’s supposedly the codename for the new flagship (but for some reason it was called R9 380X back then).

AMD Radeon R9 390X: up to 8GB HBM

AMD Radeon R9 390X is said to arrive with Fiji GPU with 4096 cores and HBM memory. Earlier plans were to release Radeon R9 390X with 4GB HBM (1GB per stack), but TITAN-X launch made those plans obsolete. Currently AMD is planning to launch R9 390X with 8GB HBM, but 2GB per stack (through Dual-Link). We were told it was a very hard decision to make. AMD has not released anything for gamers since Radeon R9 285, while NVIDIA has released both mobile and desktop GeForce 900 series, and tomorrow they will add TITAN X to the family of ridiculously-priced models.

Fiji has no competition when it comes to computing performance. The 8.6 TFLOPS performance is something that even TITAN X  will be unable to reach. Scroll down to the bottom to see gaming performance.

UNCONFIRMED AMD Radeon R9 390X Specifications
AMD Radeon R9 390XAMD Radeon R9 290XGeForce GTX TITAN XGeForce GTX 980
PictureRadeon R9 380 concept flat290x smallnvidia gtx titan x smallgtx 980 small
GPU28nm Fiji XT28nm Hawaii XT28nm GM200-40028nm GM204-400
Unified Cores4096281630722048
Core clock1002 MHz1127 MHz
Boost Clock1050 MHz1000 MHz1089 MHz1216 MHz
Memory Clock1250 MHz1250 MHz1753 MHz1753 MHz
Memory Bus4096-bit 512-bit384-bit256-bit
Memoryup to 8GB HBMup to 8GB GDDR512GB GDDR54GB GDDR5
Computing Perf.8.6 TFLOPS5.6 TFLOPS6.2 TFLOPS4.6 TFLOPS
Power Connectors1x 6pin; 1x 8pin or
2x 8pin
1x 6pin; 1x 8pin1x 6pin; 1x 8pin1x 6pin; 1x 8pin
Display Outputs?2x DVI, 1x HDMI, 1x DP1x DVI, 1x HDMI, 3x DP2x DVI, 1x HDMI, 1x DP

We are sorry for the watermarks, but some sites started to remove them…

AMD Radeon R9 390X Specifications

AMD Radeon R9 390X Hynix HBM

AMD Radeon R9 390X will be the first graphics card with full support for DirectX 12. That’s what Tier 3 means, full hardware support.

AMD Radeon R9 390X DirectX12

AMD Radeon R9 390X WCE

The 390X WCE (an internal codename?), is a special enthusiast edition that will be sold along with ‘typical’ custom coolers designed by AIBs. Unlike NVIDIA’s NVTTM cooling, WCE will not be the only available solution. Technically WCE could just be the reference model for reviewers, or slightly faster 390X for extra price. It’s really hard to tell right now. (They fixed the typo).

AMD Radeon R9 390X 4k and VR

AMD Radeon R9 390X Performance

We also have first performance slide comparing R9 390X and R9 290X. We were told these are just estimated results. We are looking at huge speed bump to 1.5-1.65 the performance of R9 290X. And remember these are ‘4k UHD’ charts. (Why it has to be so blurry?)

AMD Radeon R9 390X vs 290X performance

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