GIGABYTE RX 7900 XTX Gaming OC + UD850GM PG5 开箱测试
目前AMD RX 7900 XTX的专版并不多,其实RX 7900 XT也少,各家大概就都只出一款或两款型号,而且量也不多,甚至限组装一张,并不如NVIDIA RTX 40系列来得五花八门,这大概也是市场策略的关系。 GIGABYTE 的 RX 7900 XTX 在官网上有三款型号,包括公版、Gaming OC 以及 Elite ,不过市面上目前只有 Gaming OC 。
此次开箱的除了GIGABYTERX 7900 XTX Gaming OC之外,还有新款的UD850GMPG5电源供应器,这也是先前UD850GM的改版,新版为符合ATX 3.0的规范,并新增支持PCIe 5.0 12VHPWR接头。
![01.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
GIGABYTE RX 7900 XTX Gaming OC 的配件有保固卡、快速手册、显卡支架与螺丝包、支架安装手册。
![02.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
GIGABYTE RX 7900 XTX Gaming OC 的散热器与之前开箱过的 RTX 4070 Gaming OC 是采用相同风格设计,不过风扇框内侧的灯效是取消的,灯效的部分只在顶部 GIGABYTE 字样。
![03.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
RX 7900 XTX Gaming OC 也是相当大一张,长度是331mm,也是需要占用3个插槽。
![04.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
采用GIGABYTE风之力散热系统,搭配3个10公分独特刀锋导流造型风扇,扇叶采用正逆转设计。
![05.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
正逆转设计可减少相邻风扇之间的乱流并提高气流压力。
![08.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
风扇外框整体为黑色,并有一些斜切纹元素设计。
![06.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
内部采用均热板与GPU直触,搭配9根的热导管穿插于散热鳍片上面,GPU对应的背部也有导热垫与背板接触辅助散热。
![07.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
后方为封闭式,上方三个锁点是用于固定支撑架。
![09.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
顶部,中间GIGABYTE字样有RGB灯效。
![10.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
有金属背板,强化兼散热。
![11.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
需要2个8pin供电。
![12.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
有双BIOS设计,可切换OC超频或SILENT静音模式。
![13.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
输出端口提供2个DP、2个 HDMI。
![14.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
接着是GIGABYTE UD850GM PG5,基本上都与先前所推出的UD850GM特色相同,采用超耐久设计、日系电容、全模块化线材、80Plus金牌认证,新版符合ATX 3.0规范以及提供PCIe 5.0原生12VHPWR接头。
![21.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
保护的部分有 OVP / OPP / SCP / UVP / OCP / OTP 。 风扇支持智能停转,170W 轻载以下风扇是停止完全静音的。
![22.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
线材除了 12VHPWR 之外皆采用扁平化设计。
![23.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
UD850GM PG5 采用标准尺寸设计,长度14公分,不挑机壳。
![24.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
HYB 12公分低噪音风扇。
![25.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
12V 70.8A,12VHPWR 55A。
![26.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
模块化接口提供1个 MB、3个 CPU / PCIE、1个 12VHPWR、3个外接周边。
![27.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
主电源为20+4pin,CPU 的部分为1条提供2个 4+4pin。
![28.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
2条PCIE各提供2个6+2pin接头,1条12VHPWR,提供600W。
![29.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
SATA有2条,共8个接头,另外1条提供3个大4pin,1个小4pin。
![30.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
测试平台
CPU: Intel Core i9-13900K
CPU Cooler: MSI MEG CORELIQUID S360
RAM: G.SKILL Trident Z5 RGB DDR5-6800 16GBx2
MB: GIGABYTE Z790 AERO G
VGA: GIGABYTE RX 7900 XTX Gaming OC
SSD: GIGABYTE AORUS RAID SSD 2TB
PSU: GIGABYTE UD850GM PG5
OS: Windows 11
![31.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
3DMark 性能测试
Fire Strike Extreme:34490
Graphics Score:39697
![41.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
![x1.png](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
Fire Strike Ultra:20403
Graphics Score:20350
![42.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
![x2.png](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
Time Spy:28120
Graphics Score:30117
![43.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
![x3.png](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
Time Spy Extreme:14276
Graphics Score:14881
![44.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
![x4.png](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
Speed Way:6166
![45.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
![x5.png](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
Port Royal:16360
![46.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
![x6.png](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
DirectX Raytracing:50.23
![47.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
![x7.png](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
游戏效能
分别测试1080p、2K、4K三种分辨率,以下游戏皆为图形设定最高,无DLSS,有光追开光追,多数是使用游戏自带的Benchmark进行测试。
1920×1080
![x8.png](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
2560×1440
![x9.png](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
3840×2160
![x10.png](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
FSR 2 游戏效能,分别测试 《F1 2022》、《电驭叛客2077》于4K分辨率下游戏效能,图形设定皆为最高,开启光追。
![x11.png](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
功耗与温度测试
功耗的部分使用PCAT来进行测量,所以测得是单卡而不是全机的功耗。
功耗待机时约 17.6W。
![53.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
温度待机时38度,Hot spot 43度,风扇转速0,还未达到启动温度。
![51.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
Furmark 烧机10分钟测试平均瓦数约 308.5W,GPU-Z 测得361W。 GPU 温度59度, Hot spot 81度,风扇转速 47%,测得张数最大401,平均392,差异不大,没有因为温控掉速。
![52.jpg](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
![x12.png](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
![x13.png](https://www.gameducky.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
小结
游戏的部分,RX 7900 XTX 多数是比RTX 4070 Ti 要高,大部分赢过RTX 4080,4K 分辨率不开光追特效全开几乎都没甚么问题,但光追似乎还是硬伤一点,《电驭叛客2077》于4K分辨率下开启光线追踪最高,平均张只有21张,不过 FSR 2 技术可以有效提升效能,在Performance 下可以拉到58张,Ultra Performance 则能达到85张,当然不是那么在意光追,可以关闭会流畅许多。
GIGABYTE RX 7900 XTX Gaming OC 在温度上有不错的表现,待机时38度,且风扇未启动,Furmark 烧机仅59度,风扇转速也不高47%,另外在功耗的部分也算优势,RTX 4080 烧机大约达到330W,而这张RX 7900 XTX要低一点309W。
![微信扫一扫](https://www.gameducky.com/wp-content/uploads/2021/12/2021122203132290.jpg)