NVIDIA
GeForce GT 640
Detailed specifications, current rating, price, community data, and available comparisons for GeForce GT 640.
52/ 100
Overall rating
Price $29.00Base price in USD; converted for your region when currency data is available.Overall rating
52
GT 640 is placed on the normalized Head to Head scale using specifications, benchmarks and value signals.
Device popularity
Calculated only from saved catalog and community activity.
0comparisons126likes0favorites0owners0builds0test results
Graphics APIs, SDKs and upscaling
DirectX11.0
Vulkan1.2
OpenGL4.6
UpscalingNot supported
Compute APIOpenCL 3.0, CUDA 3.0
Architecture and release
ArchitectureKepler
Process node28 nm
Release date2012
Device classDesktop
GPU cores, die and clocks
Transistor count1270 million
Die size118 mm²
Shader units / cores384
Base clock900 MHz
Boost clock900 MHz
Board size, power and compatibility
InterfacePCIe 3x16
Length145 mm
ThicknessSingle-slot
Recommended PSU250 W
Power connectorNone
Display outputs and limits
HDMIHDMI 1.4a
DisplayPortDisplayPort 1.2
USB Type-CNo
Max monitors3
Max resolution4096 × 2160
Memory and compute throughput
VRAM2 GB GDDR3
Memory typeGDDR3
Memory bus128 bit
TFLOPS0.693
Compare GT 640
761 available comparisons
205NVIDIAVSGT 640NVIDIAOpen comparison210NVIDIAVSGT 640NVIDIAOpen comparison
740M 8300GAMDVSGT 640NVIDIAOpen comparison740M 8500GAMDVSGT 640NVIDIAOpen comparison760M 8600GAMDVSGT 640NVIDIAOpen comparison780M 8700GAMDVSGT 640NVIDIAOpen comparison8300 GSNVIDIAVSGT 640NVIDIAOpen comparison8400 GSNVIDIAVSGT 640NVIDIAOpen comparison8500 GTNVIDIAVSGT 640NVIDIAOpen comparison8600 GSNVIDIAVSGT 640NVIDIAOpen comparison8600 GTNVIDIAVSGT 640NVIDIAOpen comparison8600 GTSNVIDIAVSGT 640NVIDIAOpen comparison8800 GSNVIDIAVSGT 640NVIDIAOpen comparison8800 GTNVIDIAVSGT 640NVIDIAOpen comparison8800 GTS rev 2NVIDIAVSGT 640NVIDIAOpen comparison8800 GTSNVIDIAVSGT 640NVIDIAOpen comparison8800 GTXNVIDIAVSGT 640NVIDIAOpen comparison8800 UltraNVIDIAVSGT 640NVIDIAOpen comparison9300 GENVIDIAVSGT 640NVIDIAOpen comparison9300 GSNVIDIAVSGT 640NVIDIAOpen comparison9400 GTNVIDIAVSGT 640NVIDIAOpen comparison9500 GTNVIDIAVSGT 640NVIDIAOpen comparison9600 GSO (G94)NVIDIAVSGT 640NVIDIAOpen comparison9600 GSONVIDIAVSGT 640NVIDIAOpen comparison