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GTX970記憶體BUG
351 個回應
adblock被bam

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NVidia’s GTX 970 is the current price-to-performance darling, offering incredible visual for incredible value. It seems, however, that it’s harbouring a dark secret. It’s a 4GB card, but it looks like a significant chunk of that VRAM doesn’t work.

http://imageslgmr.lazygamer.netdna-cdn.com/2015/01/Nvidiamemory.png

According to a number of rather angry people on Reddit, Overlock and the Guru3D forums who’ve noticed their shiny, powerful GTX 970’s come to a screeching halt when maxing out their cards. Clever people, using VRAM benchmarking software, have discovered that when the last 500`700MB of VRAM gets accessed, memory performance drops significantly. Some users have even found that their cards go belly up when hitting 3GB.

Nvidiamemory

The issue doesn’t seem to affect the more expensive, more powerful 980 – so it’s not a Maxwell fault, but rather one specific to the 970. DRAM bandwidth drops from a peak of over 150GB/s, right down to 19.88 GB/s.

“Going beyond 3.5GB vram usage in games like Hitman Absolution, Call of Duty Advanced Warfare severely degrades the performance, as if the last 512mb is actually being swapped from the RAM,” says Reddit user nanogenesis in a thread on the subject.

The problems seems to be widespread – and Nvidia’s admitted that problem affects every single 970 (to varying degrees). They’re looking in to the issue – but unless it’s something that can be resolved via driver or firmware update, a recall may be on the cards.

“We are still looking into this and will have an update as soon as possible,” said NVidia community liaison ManuelG on the GeForce forums.

We asked our resident cabbage, Alessandro – who owns a GTX 970 – to test, and he was hit with the same results. You can download the benchmark to try it yourself, here. If you require the extra library to run the benchmark, you can get it here.

GTX-970-Memory-Flaw

While the card is still a performance champ, it makes it hard to recommend right now, as it’ll never reach its full potential. If you have money burning a hole in your pocket and you’re aching to buy a new card, you may just prefer to opt for the 980, which isn’t affected by this. Or you could, loathe as I am to say it, wait to see what AMD has up its sleeve.

來源:http://www.lazygamer.net/general-news/nvidias-gtx970-has-a-rather-serious-memory-allocation-bug/


#good2#5    #bad#1  
標籤: GTX970
Galax 970 EXOC 349.07
用ACU 全最高+ 8x MSAA 試
V ram 最高用到 393x MB ,多數係 38xx MB

似乎無問題


部份卡個別問題?_?


adblock被bam@_@

好耐冇見


我近排轉左用980 #hehe#dw


我個張Galaxy有:-(


本來仲想買張970


https://i.na.cx/n50g27.jpg
咁係咪有問題[sosad] 用緊gigabyte果張


咁係咪有問題[sosad] 用緊gigabyte果張

我果張inno3d 都係卡係3GB 關卡..:~(
等陣試下run 刺客信條4 推佢check 下#bye#


咁係咪有問題[sosad] 用緊gigabyte果張

我果張inno3d 都係卡係3GB 關卡..:~(
等陣試下run 刺客信條4 推佢check 下#bye#

http://pdio-production.s3.amazonaws.com/65/2e9210a38b11e4b9186b63e95b6ee4/ACU-2015-01-24-13-37-23-32.jpg


adblock被bam@_@

好耐冇見

yo


https://i.na.cx/n50g27.jpg
咁係咪有問題[sosad] 用緊gigabyte果張


真接跑轉game 試好過啦
個exe+dll 準唔準,有無無題都唔知
而見到不明 exe+dll 唔太想開


咁係咪有問題[sosad] 用緊gigabyte果張

我果張inno3d 都係卡係3GB 關卡..:~(
等陣試下run 刺客信條4 推佢check 下#bye#

http://pdio-production.s3.amazonaws.com/65/2e9210a38b11e4b9186b63e95b6ee4/ACU-2015-01-24-13-37-23-32.jpg

想請問點樣可以好似你咁, 畫面上顯示fps#adore#
係用咩軟件咖? 因為我都想睇ACU benchmark , 但acu 好似無原生既測試功能, tks 巴打:)


咁係咪有問題[sosad] 用緊gigabyte果張

我果張inno3d 都係卡係3GB 關卡..:~(
等陣試下run 刺客信條4 推佢check 下#bye#

http://pdio-production.s3.amazonaws.com/65/2e9210a38b11e4b9186b63e95b6ee4/ACU-2015-01-24-13-37-23-32.jpg

想請問點樣可以好似你咁, 畫面上顯示fps#adore#
係用咩軟件咖? 因為我都想睇ACU benchmark , 但acu 好似無原生既測試功能, tks 巴打:)

Fraps +msi afterburner


咁係咪有問題[sosad] 用緊gigabyte果張

我果張inno3d 都係卡係3GB 關卡..:~(
等陣試下run 刺客信條4 推佢check 下#bye#

http://pdio-production.s3.amazonaws.com/65/2e9210a38b11e4b9186b63e95b6ee4/ACU-2015-01-24-13-37-23-32.jpg

想請問點樣可以好似你咁, 畫面上顯示fps#adore#
係用咩軟件咖? 因為我都想睇ACU benchmark , 但acu 好似無原生既測試功能, tks 巴打:)

Fraps +msi afterburner

#hoho# tks#good#


https://i.na.cx/n50g27.jpg
咁係咪有問題[sosad] 用緊gigabyte果張


真接跑轉game 試好過啦
個exe+dll 準唔準,有無無題都唔知
而見到不明 exe+dll 唔太想開

你咁講真係畀你講晒

宜家問題唔係有500MB壞咗用唔到

只係有不明因素(命中率?定址?)導致500MB效能變到好差

係架如果隻GAME食唔晒4GB就唔駛理添


660ti都有類似問題
利申:用緊660ti
http://m.quickmeme.com/img/23/23e874e75679a902b71cdc09355f76a00f087d0bb9e3e54c3d5c71a2b1bc4652.jpg


https://i.na.cx/n50g27.jpg
咁係咪有問題[sosad] 用緊gigabyte果張


真接跑轉game 試好過啦
個exe dll 準唔準,有無無題都唔知
而見到不明 exe dll 唔太想開

你咁講真係畀你講晒

宜家問題唔係有500MB壞咗用唔到

只係有不明因素(命中率?定址?)導致500MB效能變到好差

係架如果隻GAME食唔晒4GB就唔駛理添



但有人就係連果500MB 都用唔到,原因不明
經已唔至係咪效能低問題
三個情況
1. 完全用曬4GB 無問題
2.用到4GB,但最尾約500MB效能低
3. 直頭用唔盡4GB
用game 試可以首先直接知道果500MB 用唔用到
效能低問題可能暫時只可以用果個exe睇,game 就唔會feel 到 ,code 我唔識睇,準唔準我唔知,可以係完全無問題,但對不明exe 我個人是拒絕的

留名睇老王解話


Hi Auntie0岩0岩先出左部I5+GIGA970比人,人地唔夠筆直出980所以我先推介970

NV你咪向左走向右走玩野呀fuck fuck fuck


我裝返張 970試,MSI 970 gaming 都有事呀,真係到尾就drop,我行完直頭見系統話display card 停止回應之後回復......


有無人可以講下呢個BUG可唔可以等DRIVER FIX?

定係死症攪唔到


留名跟進:)


有無人可以講下呢個BUG可唔可以等DRIVER FIX?

定係死症攪唔到


我覺得要update bios先fix到


http://www.quickmeme.com/img/23/23e874e75679a902b71cdc09355f76a00f087d0bb9e3e54c3d5c71a2b1bc4652.jpg
買左970:~(


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