1mA, this leads to premature failure.

Logitech and other mouse companies are using switches rated for 5v/10mA at 3.3v/1mA, this leads to premature failure.
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Logitech and other mouse companies are using switches rated for 5v/10mA at 3.3v/1mA, this leads to premature failure.

Posted: 16 Jun 2021 05:29 PM PDT

You might have noticed mice you've purchased in the past 5 years, even high-end mice, dying or having button-clicking issues much faster than old, cheap mice you've used for years. Especially Logitech mice, especially issues with single button presses registering as double-clicks.

This guy's hour long video did a lot of excellent research, but I'll link to the most relevant part:

https://youtu.be/v5BhECVlKJA?t=747

It all goes back to the Logitech MX518 - the one mouse all the hardware reviewers and gaming enthusiasts seem to agree is a well built, reliable, long-lasting mouse without issues. I still own one, and it still works like it's brand new.

That mouse is so famous that people started to learn the individual part names, like the Omron D2F switches for the mouse buttons that seem to last forever and work without switch bounces after 10 years.

In some cases like with Logitech they used this fact in their marketing, in others it was simply due to the switch's low cost and high reputation, so companies from Razer to Dell continued to source this part for new models of mice they've released as recently as 2018.

Problem: The MX518 operated at 5v, 100mA. But newer integrated electronics tend to run at 3.3v, not 5v, and at much lower currents. In fact the reason some of these mice boast such long battery lives is because of their minuscule operating current. But this is below the wetting current of the Omron D2F switch. Well below it. Close enough that the mice work fine when brand new, or when operated in dry environments, but after a few months/years in a reasonably humid environment, the oxide layer that builds up is too thick for the circuit to actually register that the switch has been pressed, and the switch bounces.

Ironically, these switches are the more expensive option. They're "ruggedized" and designed to last an obscene amount of clicks - 50 million - without mechanical failure - at the rated operating voltage and current. Modern mice aren't failing because of companies trying to cheap us out, they're failing because these companies are using old, well-known parts, either because of marketing or because they trust them more or both, while their circuits operate at smaller and smaller currents, as modern electronics get more and more power-efficient.

I know this sounds crazy but you can look it up yourself and check - the switches these mice are using - D2FC-F-K 50M, their spec sheet will tell you they are rated for 6v,1mA. Their wetting current range brings that down to 5v,100ma. Then you can get out a multimeter and check your own mouse, and chances are it's operating at 3.3v and around 1mA or less. They designed these mice knowing they were out of spec with the parts they were using.

submitted by /u/Reacher-Said-N0thing
[link] [comments]

nVidia GeForce RTX 3070 Ti Performance Summary: 10 reviews & 3540 benchmarks compiled

Posted: 17 Jun 2021 03:21 AM PDT

compilation of 10 launch reviews with ~3540 gaming benchmarks at all resolutions (1080p, 1440p & 2160p)
only benchmarks under real games compiled, not included any 3DMark & Unigine benchmarks
geometric mean in all cases
stock performance on reference/FE boards, no overclocking
only launch reviews with complete adoption of rBAR & SAM were evaluated
standard performance without RayTracing and/or DLSS (extra RT benchmarks)
missing results were interpolated (for a more accurate average) based on the available & former results
performance average is weighted in favor of reviews with more benchmarks
performance results were cutted in 2 tables, because as one table it becomes to wide (all results are comparable between the two tables)
extra RayTracing benchmarks after the standard rasterizer benchmarks (at 1440p resolution)
(real) power draw numbers just for the graphics card itself, not the whole system

Review	Processor	rBAR	SAM	AMD driver	nVidia driver
ComputerBase	Ryzen 9 5950X (Stock)	ja	ja	21.4.1 (pre-RNDA2: 21.1.1)	466.61/54/11 (pre-Ampere: 461.40)
GameStar	Ryzen 9 5950X	ja	ja	21.4.1	466.61
Golem	Ryzen 9 5950X (Stock)	ja	ja	21.5.2	466.61/54
Igor's Lab	Ryzen 9 5900X @ 4.7 GHz	yes	yes	"current certified drivers"	"current certified drivers"
Le Comptoir d.H.	Ryzen 9 5950X (SMT off)	oui	oui	21.5.2	466.61
PC Games HW	Ryzen 9 5950X (PBO on, SMT off)	ja	ja	21.5.2	466.6x/5x
TechPowerUp	Ryzen 7 5800X @ 4.8 GHz	yes	yes	21.4.1 (pre-RDNA: 21.2.3)	466.27/54/61 (pre-Ampere: 461.72)
The Verge	Core i9-11900K	yes	yes	driver versions not mentioned	driver versions not mentioned
Tweakers	Ryzen 9 5950X @ 4.65 GHz	ja	ja	21.5.2	466.54/61
WCCF Tech	Ryzen 9 5900X (Stock)	yes	yes	21.5.2	466.47/54

Notes: Golem's 6900XT values are taken from their launch review of the 3080Ti. The 3080Ti/3090 values from "The Verge" are taken from their launch review of the 3080Ti (both values consistent). The 3070Ti values from Tweakers were recorded with a factory overclocked Gigabyte Gaming OC and were normalized to reference level for the following performance lists.

1080p Perf.	Tests	6700XT	6800	6800XT	6900XT	2080Ti	3070	3070Ti
Gen & Mem		RDNA2 12GB	RDNA2 16GB	RDNA2 16GB	RDNA2 16GB	Turing. 11GB	Ampere 8GB	Ampere 8GB
ComputerBase	(17)	89.5%	104.3%	121.8%	129.9%	91.6%	96.0%	100%
GameStar	(6)	-	-	117.1%	-	-	95.7%	100%
Golem	(8)	94.9%	109.3%	121.2%	127.1%	-	97.1%	100%
PC Games HW	(20)	-	102.4%	-	126.3%	-	91.9%	100%
TechPowerUp	(22)	91%	103%	114%	119%	94%	97%	100%
Tweakers	(10)	90.2%	104.3%	121.7%	125.0%	94.1%	96.3%	100%
average 1080p Perf.		89.8%	104.0%	118.5%	124.8%	92.2%	95.4%	*100%*
TDP (TBP/GCP)		230W	250W	300W	300W	260W	220W	290W
MSRP		$479	$579	$649	$999	$1199	$499	$599

1080p Perf.	Tests	3060	3060Ti	3070	3070Ti	3080	3080Ti	3090
Gen & Mem		Ampere 12GB	Ampere 8GB	Ampere 8GB	Ampere 8GB	Ampere 10GB	Ampere 12GB	Ampere 24GB
ComputerBase	(17)	64.5%	85.6%	96.0%	100%	115.6%	123.4%	125.0%
GameStar	(6)	-	-	95.7%	100%	-	111.8%	112.6%
Golem	(8)	71.4%	-	97.1%	100%	113.7%	119.4%	122.1%
PC Games HW	(20)	-	-	91.9%	100%	114.4%	123.8%	128.7%
TechPowerUp	(22)	69%	88%	97%	100%	111%	117%	119%
Tweakers	(10)	-	-	96.3%	100%	112.9%	121.2%	122.0%
average 1080p Perf.		65.7%	85.0%	95.4%	*100%*	112.9%	120.0%	122.3%
TDP (GCP)		170W	200W	220W	290W	320W	350W	350W
MSRP		$329	$399	$499	$599	$699	$1199	$1499

1440p Perf.	Tests	6700XT	6800	6800XT	6900XT	2080Ti	3070	3070Ti
Gen & Mem		RDNA2 12GB	RDNA2 16GB	RDNA2 16GB	RDNA2 16GB	Turing. 11GB	Ampere 8GB	Ampere 8GB
ComputerBase	(17)	86.5%	104.9%	122.8%	132.6%	91.1%	94.8%	100%
GameStar	(6)	-	-	117.3%	-	-	94.3%	100%
Golem	(8)	90.9%	108.1%	124.1%	134.6%	-	96.7%	100%
Igor's Lab	(9)	89.3%	104.4%	117.5%	126.8%	-	93.8%	100%
Le Comptoir d.H.	(19)	84.6%	103.3%	118.6%	129.3%	91.4%	93.7%	100%
PC Games HW	(20)	-	101.5%	-	126.4%	-	90.9%	100%
TechPowerUp	(22)	87%	104%	118%	123%	91%	95%	100%
The Verge	(10)	-	109.9%	-	-	-	93.9%	100%
Tweakers	(10)	85.7%	102.3%	123.0%	130.7%	93.0%	94.5%	100%
WCCF Tech	(8)	-	101.3%	120.2%	127.7%	86.3%	92.2%	100%
average 1440p Perf.		86.5%	103.9%	120.2%	128.1%	90.5%	93.8%	*100%*
TDP (TBP/GCP)		230W	250W	300W	300W	260W	220W	290W
MSRP		$479	$579	$649	$999	$1199	$499	$599

1440p Perf.	Tests	3060	3060Ti	3070	3070Ti	3080	3080Ti	3090
Gen & Mem		Ampere 12GB	Ampere 8GB	Ampere 8GB	Ampere 8GB	Ampere 10GB	Ampere 12GB	Ampere 24GB
ComputerBase	(17)	62.2%	83.4%	94.8%	100%	119.1%	129.7%	133.2%
GameStar	(6)	-	-	94.3%	100%	-	124.0%	126.1%
Golem	(8)	70.2%	-	96.7%	100%	117.3%	125.0%	128.6%
Igor's Lab	(9)	-	84.2%	93.8%	100%	115.4%	126.0%	126.6%
Le Comptoir d.H.	(19)	-	82.9%	93.7%	100%	117.4%	128.2%	132.1%
PC Games HW	(20)	-	-	90.9%	100%	117.5%	128.5%	134.1%
TechPowerUp	(22)	64%	84%	95%	100%	115%	124%	126%
The Verge	(10)	-	-	93.9%	100%	113.0%	121.9%	126.4%
Tweakers	(10)	-	-	94.5%	100%	115.7%	126.2%	128.1%
WCCF Tech	(8)	-	-	92.2%	100%	116.6%	124.7%	126.4%
average 1440p Perf.		62.6%	82.5%	93.8%	*100%*	116.6%	126.5%	129.7%
TDP (GCP)		170W	200W	220W	290W	320W	350W	350W
MSRP		$329	$399	$499	$599	$699	$1199	$1499

4K/2160p Perf.	Tests	6700XT	6800	6800XT	6900XT	2080Ti	3070	3070Ti
Gen & Mem		RDNA2 12GB	RDNA2 16GB	RDNA2 16GB	RDNA2 16GB	Turing. 11GB	Ampere 8GB	Ampere 8GB
ComputerBase	(17)	83.0%	103.8%	120.7%	131.2%	92.8%	93.7%	100%
GameStar	(6)	-	-	114.6%	-	-	92.0%	100%
Golem	(8)	84.0%	107.0%	124.6%	136.2%	-	93.9%	100%
Igor's Lab	(9)	83.8%	103.1%	119.4%	129.4%	-	92.5%	100%
Le Comptoir d.H.	(19)	79.9%	101.2%	117.2%	127.0%	91.9%	92.0%	100%
PC Games HW	(20)	-	100.4%	-	125.4%	-	89.6%	100%
TechPowerUp	(22)	81%	103%	117%	126%	91%	93%	100%
The Verge	(10)	-	110.3%	-	-	-	93.7%	100%
Tweakers	(10)	80.1%	100.1%	122.7%	132.4%	92.7%	93.2%	100%
WCCF Tech	(8)	-	101.7%	120.9%	130.4%	88.7%	91.9%	100%
average 4K/2160p Perf.		81.6%	102.6%	119.3%	128.7%	91.3%	92.3%	*100%*
TDP (TBP/GCP)		230W	250W	300W	300W	260W	220W	290W
MSRP		$479	$579	$649	$999	$1199	$499	$599

4K/2160p Perf.	Tests	3060	3060Ti	3070	3070Ti	3080	3080Ti	3090
Gen & Mem		Ampere 12GB	Ampere 8GB	Ampere 8GB	Ampere 8GB	Ampere 10GB	Ampere 12GB	Ampere 24GB
ComputerBase	(17)	59.9%	80.9%	93.7%	100%	123.2%	136.3%	139.4%
GameStar	(6)	-	-	92.0%	100%	-	135.6%	139.1%
Golem	(8)	71.1%	-	93.9%	100%	126.8%	137.5%	142.6%
Igor's Lab	(9)	-	81.2%	92.5%	100%	122.8%	135.9%	138.6%
Le Comptoir d.H.	(19)	-	80.3%	92.0%	100%	121.4%	134.9%	140.3%
PC Games HW	(20)	-	-	89.6%	100%	121.9%	134.5%	140.9%
TechPowerUp	(22)	60%	80%	93%	100%	119%	133%	135%
The Verge	(10)	-	-	93.7%	100%	122.6%	133.9%	138.4%
Tweakers	(10)	-	-	93.2%	100%	121.1%	134.9%	137.3%
WCCF Tech	(8)	-	-	91.9%	100%	123.2%	137.0%	140.6%
average 4K/2160p Perf.		61.0%	80.1%	92.3%	*100%*	122.0%	135.1%	139.0%
TDP (GCP)		170W	200W	220W	290W	320W	350W	350W
MSRP		$329	$399	$499	$599	$699	$1199	$1499

RT Perf. @ 1440p	Tests	6800	6800XT	6900XT	3070	3070Ti	3080	3080Ti	3090
Gen & Mem		RDNA2 16GB	RDNA2 16GB	RDNA2 16GB	Ampere 8GB	Ampere 8GB	Ampere 10GB	Ampere 12GB	Ampere 24GB
ComputerBase	(5)	81.3%	93.5%	101.7%	94.2%	100%	126.5%	137.6%	140.9%
Le Comptoir d.H.	(11)	70.6%	82.9%	90.3%	92.5%	100%	123.2%	136.5%	141.6%
PC Games HW	(10)	77.0%	-	97.4%	93.0%	100%	125.2%	136.2%	140.9%
WCCF Tech	(7)	80.5%	92.8%	98.8%	92.0%	100%	124.1%	132.9%	135.7%
average RT Perf.		77.2%	89.7%	97.0%	92.9%	*100%*	124.8%	135.8%	139.8%
TDP (GCP/TBP)		250W	300W	300W	220W	290W	320W	350W	350W
MSRP		$579	$649	$999	$499	$599	$699	$1199	$1499

Real Power Draw	6800	6800XT	6900XT	3070	3070Ti	3080	3080Ti	3090
Gen & Mem	RDNA2 16GB	RDNA2 16GB	RDNA2 16GB	Ampere 8GB	Ampere 8GB	Ampere 10GB	Ampere 12GB	Ampere 24GB
ComputerBase	231W	296W	300W	220W	289W	322W	356W	351W
Golem	221W	301W	301W	221W	286W	319W	350W	357W
Guru3D	239W	300W	322W	208W	285W	338W	347W	364W
Hardwareluxx	267W	334W	338W	221W	305W	332W	355W	-
Igor's Lab	226W	297W	303W	218W	298W	329W	343W	358W
Le Comptoir d.H.	236W	303W	305W	229W	299W	323W	358W	363W
Les Numeriques	252W	304W	305W	232W	290W	335W	351W	371W
PC Games HW	232W	302W	301W	221W	295W	330W	348W	355W
TechPowerUp	223W	292W	302W	220W	298W	318W	356W	355W
Tweakers	229W	284W	296W	207W	298W	309W	338W	357W
average Power Draw	234W	299W	306W	221W	294W	325W	350W	359W
TDP (GCP/TBP)	250W	300W	300W	220W	290W	320W	350W	350W

At a glance	3070Ti over 3070	3080 over 3070Ti	6800 over 3070Ti
1080p Perf.	+4.8%	+12.9%	+4.0%
1440p Perf.	+6.6%	+16.6%	+3.9%
2160p Perf.	+8.3%	+22.0%	+2.6%
RT Perf. (1440p)	+7.6%	+24.8%	–22.8%
Real Power Draw	+33.0%	+10.5%	–20.4%