- Sep 3, 2019
- 1,669 (3.67/day)
- Thessaloniki, Greece
|System Name||PC alive since Aug 18th 2019|
|Processor||Ryzen 5 3600 (PBO Enabled)|
|Motherboard||Gigabyte X570 Aorus Pro, BIOS F22|
|Cooling||Corsair H110i 280mm (Liquid metal for TIM)|
|Memory||CorsairVengeanceLPX DDR4 2x8GB 3466MHz CL16-18-18-36 1T, B-die A0 PCB, @3800 CL16-18-18-36 1T(1.46V)|
|Video Card(s)||MSI RX 5700XT Gaming X|
|Storage||Samsung NVMe: 970Pro 512GB (2019) / SATA-III: 850Pro 1TB SSD (2017), 860Evo 1TB SSD (2020)|
|Display(s)||24" EIZO FlexScan S2411W 1920x1200, 16:10 60Hz samsung S-PVA 14-bit (16.7M/1.06B colors), 6ms G2G|
|Audio Device(s)||Sound Blaster Z <--optical link--> Logitech Z5500 5.1 500W|
|Power Supply||Corsair HX750i|
|Mouse||Logitech MX Master|
|Keyboard||Logitech G15 v2|
|Software||Windows 10 Home 64bit (v2004)|
Not every cuda core is created equal. Its like trying to compare different cores from different CPUs.Exactly. The thing is that the raw performance uplift comes with a TDP uplift of ~equal measure, so I can't really see any perf/W increase at all.
When they announced the prices and everybody started panic selling their 2080 Ti's, I had a feeling that there was a reason behind it. Nvidia has never been famous for bringing good value propositions in the higher market segments - don't get me wrong, people, they're good cards, just not as good as Jensen claimed in the announcement. It also puzzles me how they managed to achieve a 30% performance uplift with ~double the cuda cores.
Its easy if you know the specifics. According to Jensen a process unit to be called cuda core must be able to execute FP32 instructions.
Pre-Turing architectures every cuda core was capable of 1 Int or 1 FP instruction, and cannot execute both.
This has changed in Turing. In Turing every cuda core was performing exclusively FP instructions and the number was 4352. For Int instructions Turing had another 4352 units that was not counted for cuda cores (see Jensen)
Ampere 3080 now has (4352x2) 8704 cuda cores and the 4352 of them are executing exclusively FP instruction and the other 4352 are executing Int or FP instructions, but not both.