NVIDIA
GeForce GT 640M
Detailed specifications, current rating, price, community data, and available comparisons for GeForce GT 640M.
42/ 100
Overall rating
Price ¥4,390.09Base price in USD; converted for your region when currency data is available.Overall rating
42
GeForce GT 640M 会根据规格、基准测试和价值信号放置在标准化的 Head to Head 评分轴上。
Device popularity
Calculated only from saved catalog and community activity.
0对比73likes0favorites0用户0配置0test results
图形 API、SDK 和超分辨率
DirectX11.0
Vulkan1.2
OpenGL4.6
超分辨率Not supported
计算 APIOpenCL 3.0, CUDA 3.0
架构和发布时间
架构Kepler / Fermi
制程28 nm
发布日期2012
Device classMobile
GPU 核心、芯片和频率
晶体管数量1270 million
芯片面积118 mm²
着色器单元 / 核心384
基础频率624 MHz
加速频率709 MHz
板卡尺寸、供电和兼容性
接口PCIe 3.0 x16
长度OEM dependent
厚度IGP
推荐电源OEM dependent
电源接口None
显示输出和限制
HDMIOEM dependent
DisplayPortOEM dependent
USB Type-COEM dependent
最大显示器数量OEM dependent
最高分辨率Depends on host system
显存和计算吞吐量
显存2 GB DDR3
显存类型GDDR5 / DDR3
显存位宽128 bit
TFLOPS0.544
Compare GeForce GT 640M
761 available comparisons
205NVIDIAVSGeForce GT 640MNVIDIAOpen comparison210NVIDIAVSGeForce GT 640MNVIDIAOpen comparison
740M 8300GAMDVSGeForce GT 640MNVIDIAOpen comparison740M 8500GAMDVSGeForce GT 640MNVIDIAOpen comparison760M 8600GAMDVSGeForce GT 640MNVIDIAOpen comparison780M 8700GAMDVSGeForce GT 640MNVIDIAOpen comparison8300 GSNVIDIAVSGeForce GT 640MNVIDIAOpen comparison8400 GSNVIDIAVSGeForce GT 640MNVIDIAOpen comparison8500 GTNVIDIAVSGeForce GT 640MNVIDIAOpen comparison8600 GSNVIDIAVSGeForce GT 640MNVIDIAOpen comparison8600 GTNVIDIAVSGeForce GT 640MNVIDIAOpen comparison8600 GTSNVIDIAVSGeForce GT 640MNVIDIAOpen comparison8800 GSNVIDIAVSGeForce GT 640MNVIDIAOpen comparison8800 GTNVIDIAVSGeForce GT 640MNVIDIAOpen comparison8800 GTS rev 2NVIDIAVSGeForce GT 640MNVIDIAOpen comparison8800 GTSNVIDIAVSGeForce GT 640MNVIDIAOpen comparison8800 GTXNVIDIAVSGeForce GT 640MNVIDIAOpen comparison8800 UltraNVIDIAVSGeForce GT 640MNVIDIAOpen comparison9300 GENVIDIAVSGeForce GT 640MNVIDIAOpen comparison9300 GSNVIDIAVSGeForce GT 640MNVIDIAOpen comparison9400 GTNVIDIAVSGeForce GT 640MNVIDIAOpen comparison9500 GTNVIDIAVSGeForce GT 640MNVIDIAOpen comparison9600 GSO (G94)NVIDIAVSGeForce GT 640MNVIDIAOpen comparison9600 GSONVIDIAVSGeForce GT 640MNVIDIAOpen comparison