参数及跑分对比(GTX780M vs GTX 680M):
Better 3DMark 11 graphics score 7883 vs5897.5GTX780M得分高于GTX680M 35%( 3DMark 11 graphics score )
Better 3DMark vantage graphics score 27374 vs20891GTX780M相对GTX680M提升 31% (3DMark vantage graphics score )
![NvidiaGeforceGTX780MvsGTX680M(性能测评) nvidia geforce 840m](http://img.aihuau.com/images/31101031/31104239t0194338bb212194ef2.jpg)
Significantly higher effective memory clock speed 5000 MHz vs3600 MHzGTX780M 相对GTX680M提升 38.9% (显存频率)
Better floating-point performance 2369 GFLOPS vs 1933GFLOPS浮点性能GTX780M相对GTX680M提升 25%
Higher texture rate 98.7 GTexel/s vs 80.5GTexel/sHigher pixel rate 24.7 GPixel/s vs 20.1GPixel/s此两项是游戏画质的指标(画质细腻度,像素填充率)GTX780M相对GTX680M提升25%
Higher clock speed771 MHz vs 719 MHzGTX780M相对GTX680M提升 5%
Much higher memory clock speed 1250 MHz vs 900MHzGTX780M相对GTX680M提升 40%
Higher turbo clock speed 797 MHz vs 719MHzGTX780M相对GTX680M提升 10% (此三项是显卡核心频率指标)
Significantly higher crysis 3 framerate 29.2 fps vs 21.8fpsGTX780M相对GTX680M提升 35% (孤岛危机3帧数)
More texture mapping units 128 vs 112GTX780M相对GTX680M多16个TMU单元(材质处理性能指标,TMU)
More shading units 1536 vs 1344GTX780M相对GTX680M多192个 着色单元
Higher dead space 3 framerate 143.9 fps vs 111.1fpsGTX780M相对GTX680M提升 30%(死亡空间3游戏帧数)
Better passmark direct compute score 2355 vs1841GTX780M相对GTX680M提升30% (GPU计算的指标)
Higher diablo III framerate 186.1 fps vs 157.25fpsGTX780M相对GTX680M提升20%(暗黑3游戏帧数)
Higher call of duty: modern warfare 3 framerate 119.35 fps vs102.8 fpsGTX780M相对GTX680M提升16%(使命召唤8:现代战争3游戏帧数)
功耗 GTX780M(122W)相对GTX680M(100W)高22%
GPUboss ReviewOur evaluation of GeForce GTX 780M vs 680M
GPUboss Winner:Geforce GTX780M
总的来说GTX780M相对GTX680M提升幅度大概在20%左右,如果不是特别追求性能,GTX680M完全可以胜任当下绝大多数游戏(个别变态游戏例外)