Nvidia GeForce GT 640 Specs


Nvidia GeForce GT 640 on Amazon USA


Specifications of the Nvidia GeForce GT 640 graphics card dedicated to the desktop sector, with 384 shading units, its maximum frequency is 0.9GHz The table below makes it possible to observe well the lithography, the number of transistors (if present), the offered cache memory, the quantity of texture mapping units, of render output units, the release date, the GFLOPS performance, the values obtained in the benchmark platforms.







Specifications:


Graphics card Nvidia GeForce GT 640
Market (main) Desktop
Release date Q2 2012
Model number GK107-300-A2
GPU name GK107
Architecture Kepler
Generation GeForce 600
Lithography 28 nm
Transistors 1,270,000,000
Bus interface PCIe 3.0 x16
GPU clock 902 MHz
Memory frequency 891 MHz
Effective memory speed 1.8 GB/s
Memory size 2 GB
Memory type DDR3
Memory bus 128 bit
Memory bandwidth 29 GB/s
TDP 65 W
Suggested PSU 250W ATX Power Supply
Multicard technology -
Outputs

1x DVI
1x HDMI
1x DisplayPort
Maximum GPU Temperature 98°C
Cores (compute units, SM, SMX) 2
Shading units (cuda cores) 384
TMUs 32
ROPs 16
Cache memory 256 KB
Pixel fillrate 7.2 GPixel/s
Texture fillrate 28.9 GTexel/s
Performance FP32 (float) 692.7 GFLOPS
Performance FP64 (double) 28.9 GFLOPS
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TMUs: texture mapping units. This unit was a physical processor separated from the main graphics processing units. It is able to distort a bitmap image, and also to resize it, to rotate it and to place it as a texture onto a plane of a specific 3D model.

ROPs: render output units. The other name of this unit is raster operations pipeline. This hadware component is taking pixel and texel information, and processing it through vector and matrix operations. The result will be a depth value or a final pixel. It is able to control antialiasing with the merge of several sample into one pixel.

SM: streaming multiprocessor. These processors are implied in the Kepler's power efficiency when the GPU is using one unified clock speed.



Performances :


Performance comparison between this graphics card and those of equivalent power, for this we consider the results generated on benchmark softwares and rendering performances.


Pixel fillrate performance comparison for this graphics card:


Pixel fillrate performance in GPixels/s
AMD Radeon RX 560X 20.4
AMD Radeon 550X 19.49
AMD Radeon RX 550X 18.93
AMD Radeon RX 560DX 18.8
Intel UHD Graphics 770 11.6
Nvidia GeForce GT 640 7.22



The term pixel fillrate is refering to the number of pixels that the video card is able to generate every second. This performance is achieved by multiplying the raster output units (ROPs) by the clock frequency of the graphics processor unit (GPU).


Texture fillrate performance comparison for this graphics card:


Texture fillrate performance in GTexels/s
Nvidia T1000 78.12
AMD Radeon RX 560DX 65.8
Nvidia Quadro P620 43.33
AMD Radeon 550X 38.98
AMD Radeon RX 550X 37.86
Nvidia GeForce GT 640 28.86
Intel UHD Graphics 770 23.2



The term texture fillrate refers to the number of map texture elements (texels) that the GPU is capable of generating per second. This performance is achieved by multiplying the texture mapping units (TMUs) by the clock frequency of the graphics processor unit.


FP32 performance comparison (single precision; float; floating-point 32) for this graphics card:


FP32 Performance in GFLOPS
AMD Radeon RX 560DX 2,106
Nvidia Quadro P620 1,386
AMD Radeon 550X 1,247
AMD Radeon RX 550X 1,211
Intel UHD Graphics 770 742.4
Nvidia GeForce GT 640 692.7



Single precision floating point format, also known as FP32, is a computer number format that typically occupies 32 bits in PC memory. This represents a wide dynamic range of numeric values that employs a floating point.



List of comparisons:

AMDAMD RadeonAMD Radeon GraphicsAMD Radeon HD 8000AMD Radeon R5AMD Radeon R7AMD Radeon R9AMD Radeon RXAMD Radeon RX 300AMD Radeon RX 400AMD Radeon RX 500AMD Radeon RX 5000AMD Radeon RX 5000 MobileAMD Radeon RX 6000AMD Radeon RX 6000 MobileAMD Radeon RX seriesAMD Radeon RX VegaAMD Radeon VegaAMD Radeon Vega 11AMD Radeon Vega 3AMD Radeon Vega 6AMD Radeon Vega 8AMD Radeon Vega MobileAppleARMARM MaliARM Mali-400ARM Mali-450ARM Mali-470ARM Mali-G31ARM Mali-G51ARM Mali-G52ARM Mali-G57ARM Mali-G68ARM Mali-G71ARM Mali-G710ARM Mali-G72ARM Mali-G76ARM Mali-G77ARM Mali-G78ARM Mali-T720ARM Mali-T760ARM Mali-T764ARM Mali-T820ARM Mali-T830ARM Mali-T860ARM Mali-T880AsusBroadcomBroadcom VideoCoreImaginationImagination PowerVRImagination PowerVR SGX543Imagination PowerVR SGX544IntelIntel HD GraphicsIntel Iris GraphicsIntel Iris Plus GraphicsIntel Iris Xe Graphics G7Intel Iris Xe Graphics MobileIntel UHD GraphicsIntel UHD Graphics 610Intel UHD Graphics 620Intel UHD Graphics 630Intel Xe GraphicsMSINvidiaNvidia GeForceNvidia GeForce 1000Nvidia GeForce 1000 MobileNvidia GeForce 1600Nvidia GeForce 1600 MobileNvidia GeForce 2000Nvidia GeForce 2000 MobileNvidia GeForce 3000Nvidia GeForce 3000 MobileNvidia GeForce 500Nvidia GeForce 600Nvidia GeForce 600MNvidia GeForce 700Nvidia GeForce 700MNvidia GeForce 800M seriesNvidia GeForce 900Nvidia GeForce 900MNvidia GeForce GTNvidia GeForce GTXNvidia GeForce MXNvidia GeForce RTXNvidia GM20BNvidia Quadro seriesNvidia TeslaNvidia VoltaQualcommQualcomm AdrenoVivanteGraphics cards groups

List of benchmarks:

FP32 performance

See also:

Nvidia GeForce GT 640MNvidia GeForce GT 640M LENvidia GeForce GT 645Nvidia GeForce GT 645M

Equivalence:

Nvidia GeForce GT 640 AMD equivalent




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