Author Topic: AMD Vega GPU thread  (Read 22426 times)



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JeGX

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AMD Vega GPU thread
« on: May 04, 2017, 07:02:12 PM »
It's time for a topic on AMD Vega 10/11 GPUs...

AMD Vega 10 specifications:
- 4096 shader cores (64 Next-Gen compute units, with 64 shader cores per compute unit)
- 4 shader engines (with 1024 shader cores per shader engine)
- 64 ROps
- 256 TMUs
- memory interface: 2048-bit
- memory: 8GB HBM2

First graphics cards based on Vega should be launched near the end of June 2017.

- AMD Radeon RX Vega Specs Leaked In Linux Patch – Features 4 Shader Engines, 256 TMUs & 64 ROPs






Vega Benchmarks:

- 3DMark TimeSpy Benchmark Of Early Radeon RX Vega Prototype Leaks Out




Three Radeon RX Vega SKU could be launched: the slowest is faster than GeForce GTX 1070 and the fastest chip should compete with GTX 1080 Ti.
- AMD Works on At Least Three Radeon RX Vega SKUs, Slowest Faster than GTX 1070?







JeGX

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AMD Vega GPU thread (updated 2017.05.08)
« Reply #1 on: May 08, 2017, 01:30:18 PM »
According to latest rumors, AMD will launch less than 20'000 Vega-based graphics cards during the first months. Probably due to the HBM2 memory limited supply.

AMD will unveil more information about its upcoming GPUs (Vega and Navi) on May 16 2017 during AMD's  Financial Analyst Day.

Links:
- tweaktown.com
- videocardz.com
- wccftech.com




JeGX

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AMD Vega GPU thread: FireStrike score and DOOM 4k demo
« Reply #2 on: May 08, 2017, 02:49:08 PM »
3DMark FireStrike score: 17801 points for the Graphics Score (a GTX 1070 gets around 18000/19000 points).

Links:
- techpowerup.com
- wccftech.com




AMD Vega running a DOOM 4k demo:


nuninho1980

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Re: AMD Vega GPU thread: FireStrike score and DOOM 4k demo
« Reply #3 on: May 09, 2017, 11:26:43 AM »
3DMark FireStrike score: 17801 points for the Graphics Score (a GTX 1070 gets around 18000/19000 points).
only 17800!??! lol I got GPU scrore 18560 on EVGA GTX 980 Ti SC+@stock speeds (1315MHz core boost real) with 376.09WHQL running Win 10 x64 and CPU i7-4790K@4.7GHz.

JeGX

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AMD Vega Dual-GPU graphics card
« Reply #4 on: May 11, 2017, 09:28:00 AM »
Some traces of a Vega dual-GPU graphics card have been found in a new Linux driver:

Quote
table->FanGainPlx = hwmgr->thermal_controller. advanceFanControlParameters.usFanGainPlx;
table->TplxLimit = cpu_to_le16(tdp_table->usTemperatureLimitPlx);

What you’re looking at is code specific to a PLX chip, found in the Vega 10 code stack. A PLX chip is an ASIC that splices PCIe lanes to bridge multiple components. They’re used in dual GPU graphics boards to connect the two graphics processors together and then drive that signal to the PCIe slot.

- AMD Vega Dual GPU Liquid Cooled Graphics Card Spotted In Linux Drivers
- Vega 10 power management code in Linux driver
- Vega 10 temperature sensor management code in Linux driver


Two new devices ID: 0x6864 and 0x6868.
- Two More Device IDs Added For Radeon Vega 10

JeGX

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AMD Vega GPU thread: 16GB HMB2, Vega Nova, Eclipse and Core
« Reply #5 on: May 15, 2017, 01:32:46 PM »
Latest RUMORS: here are the name of the three different Radeon Vega based graphics cards:

- Radeon RX Vega Nova: (targets NVIDIA GTX 1080 Ti)
- Radeon RX Vega Eclipse: (targets NVIDIA GTX 1080)
- Radeon RX Vega Core: (targets NVIDIA GTX 1070)

Links:
- tweaktown.com
- digiworthy.com


Latest leaks: the high-end Vega 10 GPU will come with 16GB HBM2 and the GPU core will be clocked at 1600MHz. These specs come from an entry of the ComputeBench database:



Links:
- videocardz.com
- wccftech.com

JeGX

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AMD Radeon RX Vega 64 Air Cooled Pictured
« Reply #6 on: July 28, 2017, 05:07:56 PM »

JeGX

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AMD Radeon RX Vega 64 Limited Edition Pictured
« Reply #7 on: July 30, 2017, 09:32:37 AM »
AMD Radeon RX Vega 64 Limited Edition:

Quote
This model comes with a brushed aluminum shroud, same as Frontier except this one is kept in silver. The card has dual 8-pin power connectors and two LED illuminated logos, the R on the corner and Radeon on the side.















Sources:
- https://www.techpowerup.com/235611/amd-radeon-rx-vega-in-person
- https://www.computerbase.de/2017-07/radeon-rx-vega-fotos/
- https://videocardz.com/71325/first-amd-radeon-rx-vega-64-limited-edition-shown
- https://twitter.com/LinusTech/status/891392287502082048
« Last Edit: July 30, 2017, 09:54:03 AM by JeGX »

JeGX

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AMD Radeon RX Vega 64 Clock Speeds and Prices
« Reply #8 on: July 30, 2017, 01:49:38 PM »
Possible clock speeds and prices until serious confirmation:

- AMD Radeon RX Vega 64 air cooled: USD $499
  Clock speeds:  base 1247MHz and boost 1546MHz

- AMD Radeon RX Vega 64 air cooled Limited Edition: USD $549
  Clock speeds:  base 1247MHz and boost 1546MHz

- AMD Radeon RX Vega 64 liquid cooled: USD $599
  Clock speeds:  base 1406MHz and boost 1677MHz

- AMD Radeon RX Vega 64 liquid cooled Limited Edition: USD $649
  Clock speeds:  base 1406MHz and boost 1677MHz

Source:
- https://videocardz.com/71393/amd-radeon-rx-vega-64-rumored-pricing-and-clocks

Stefan

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Re: AMD Vega GPU thread
« Reply #9 on: August 14, 2017, 04:51:13 PM »
 AMD Vega Instruction Set Architecture documentation
 
 Understanding the instruction-level capabilities of any processor is a worthwhile endeavour for any developer writing code for it, even if the instructions that get executed are almost always hidden behind a higher-level language and compiler. If you’re working at that level as most are, the extra understanding you get from knowing exactly how the machine executes will hopefully help you write better code for it.
 
 We’ve been releasing the ISA manuals for our GPUs for a long time now, and they reach all the way back to the venerable Radeon R600 (a GPU which helped usher in the DirectX®10 era back in 2006!). With the Radeon Vega Frontier Edition released recently, and Radeon RX Vega consumer hardware just around the corner, it’s time for us to add the Vega ISA manual to the list.

JeGX

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AMD Vega GPU architecture whitepaper
« Reply #10 on: August 15, 2017, 11:17:00 AM »
Quote
Vega is the most sweeping change to AMD’s core graphics technology since the
introduction of the first GCN-based chips five years ago. The Vega
architecture is intended to meet today’s needs by embracing several
principles: flexible operation, support for large data sets, improved
power efficiency, and extremely scalable performance. Vega
introduces a host of innovative features in pursuit of this vision, which
we’ll describe in the following pages. This new architecture promises
to revolutionize the way GPUs are used in both established and
emerging markets by offering developers new levels of control,
flexibility, and scalability.

Link: http://radeon.com/_downloads/vega-whitepaper-11.6.17.pdf