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NVIDIA GeForce GT 640 OEM

Graphics Processor
GK107
Cores
384
TMUs
32
ROPs
16
Memory Size
2 GB
Memory Type
DDR3
Bus Width
128 bit
The GeForce GT 640 OEM was a graphics card by NVIDIA, launched in April 2012. Built on the 28 nm process, and based on the GK107 graphics processor, in its GK107-320-A2 variant, the card supports DirectX 12. Even though it supports DirectX 12, the feature level is only 11_0, which can be problematic with newer DirectX 12 titles. The GK107 graphics processor is an average sized chip with a die area of 118 mm² and 1,270 million transistors. It features 384 shading units, 32 texture mapping units, and 16 ROPs. NVIDIA has paired 2,048 MB DDR3 memory with the GeForce GT 640 OEM, which are connected using a 128-bit memory interface. The GPU is operating at a frequency of 797 MHz, memory is running at 891 MHz.
Being a single-slot card, the NVIDIA GeForce GT 640 OEM does not require any additional power connector, its power draw is rated at 50 W maximum. Display outputs include: 1x DVI, 1x HDMI, 1x DisplayPort. GeForce GT 640 OEM is connected to the rest of the system using a PCI-Express 3.0 x16 interface. The card measures 145 mm in length, and features a single-slot cooling solution.

Graphics Processor

GPU Name
GK107
GPU Variant
GK107-320-A2
Architecture
Kepler
Foundry
TSMC
Process Size
28 nm
Transistors
1,270 million
Die Size
118 mm²

Graphics Card

Release Date
Apr 24th, 2012
Generation
GeForce 600
Production
End-of-life
Bus Interface
PCIe 3.0 x16

Relative Performance

18%
GeForce 210
23%
GeForce 9400 GT
28%
Radeon HD 4550
36%
Radeon HD 5450
43%
Radeon HD 6450
45%
GeForce GT 520
56%
GeForce GT 220
73%
GeForce GT 430
74%
Radeon HD 5570
80%
Radeon HD 4670
85%
GeForce GT 440
87%
GeForce GT 240
99%
GeForce 9600 GT
100%
GeForce GT 640 OEM
106%
Radeon HD 5670
113%
GeForce GT 640
117%
GeForce 9800 GT
122%
Radeon HD 6670
126%
Radeon HD 4830
134%
Radeon HD 4770
141%
Radeon HD 4850
145%
GeForce GTS 250
149%
GeForce GTS 450
154%
Radeon HD 5750
176%
Radeon HD 7750
177%
Radeon HD 5770
180%
GeForce GTX 260
183%
Radeon HD 4870
183%
Radeon Vega 8
185%
GeForce GTX 550 Ti
187%
GeForce GTX 650
197%
Radeon HD 5830
208%
Radeon HD 6790
211%
Radeon HD 4890
219%
GeForce GTX 460
221%
Radeon RX Vega 11
223%
GeForce GT 1030
225%
GeForce GTX 275
225%
Radeon HD 7770 GHz Edition
226%
GeForce GTX 280
230%
GeForce GTX 465
241%
Radeon HD 6850
246%
GeForce GTX 285
264%
Radeon HD 5850
269%
GeForce GTX 650 Ti
269%
Radeon HD 7790
280%
Radeon RX 550
281%
GeForce GTX 470
291%
Radeon HD 6870
310%
Radeon HD 5870
320%
GeForce GTX 560 Ti
322%
Radeon HD 4870 X2
328%
GeForce GTX 750 Ti
329%
Radeon HD 6950
341%
GeForce GTX 295
345%
GeForce GTX 650 Ti Boost
347%
Radeon HD 7850
353%
GeForce GTX 480
370%
Radeon HD 6970
377%
Radeon R7 265
383%
Radeon RX 460
383%
Radeon R7 370
385%
GeForce GTX 660
386%
GeForce GTX 570
392%
Radeon RX 560
416%
GeForce GTX 950
420%
Radeon HD 7870 GHz Edition
430%
Radeon R9 270X
436%
GeForce GTX 660 Ti
438%
GeForce GTX 580
441%
GeForce GTX 1050
442%
Radeon HD 7950
451%
Radeon HD 5970
463%
GeForce GTX 760
499%
GeForce GTX 670
512%
GeForce GTX 960
525%
Radeon R9 380
528%
Radeon R9 285
533%
Radeon HD 7970
539%
GeForce GTX 680
551%
GeForce GTX 1050 Ti
566%
GeForce GTX 770
579%
Radeon HD 6990
593%
Radeon R9 280X
601%
GeForce GTX 590
601%
Radeon HD 7970 GHz Edition
666%
GeForce GTX 780
690%
GeForce GTX 1650
733%
Radeon RX 470
743%
Radeon R9 290
783%
Radeon RX 570
793%
Radeon R9 390
797%
Radeon R9 290X
808%
GeForce GTX 970
819%
GeForce GTX TITAN
830%
GeForce GTX 780 Ti
841%
Radeon R9 390X
845%
Radeon HD 7990
849%
Radeon RX 480
856%
GeForce GTX 690
879%
GeForce GTX 1060 6 GB
892%
Radeon RX 5500 OEM
902%
Radeon RX 580
909%
Radeon RX 5500 XT
921%
GeForce GTX 980
929%
GeForce GTX 1650 SUPER
933%
Radeon R9 FURY
975%
Radeon RX 590
1026%
Radeon R9 295X2
1032%
GeForce GTX 1660
1044%
Radeon R9 FURY X
1062%
GeForce GTX 980 Ti
1089%
GeForce GTX TITAN X
1159%
GeForce GTX 1660 SUPER
1185%
GeForce GTX 1660 Ti
1185%
GeForce GTX 1070
1261%
Radeon RX Vega 56
1338%
GeForce GTX 1070 Ti
1376%
Radeon RX Vega 64
1395%
GeForce RTX 2060
1395%
GeForce GTX 1080
1452%
Radeon RX 5700
1567%
GeForce RTX 2060 SUPER
1624%
GeForce RTX 2070
1662%
Radeon RX 5700 XT
1682%
Radeon VII
1725%
TITAN X Pascal
1777%
GeForce GTX 1080 Ti
1796%
GeForce RTX 2070 SUPER
1911%
GeForce RTX 2080
2026%
GeForce RTX 2080 SUPER
2236%
GeForce RTX 2080 Ti
2951%
GeForce RTX 3080
Based on TPU review data: "Performance Summary" at 1920x1080
Performance estimated based on architecture, shader count and clocks.

Clock Speeds

GPU Clock
797 MHz
Memory Clock
891 MHz
1782 Mbps effective

Memory

Memory Size
2 GB
Memory Type
DDR3
Memory Bus
128 bit
Bandwidth
28.51 GB/s

Render Config

Shading Units
384
TMUs
32
ROPs
16
SMX Count
2
L1 Cache
16 KB (per SMX)
L2 Cache
256 KB

Theoretical Performance

Pixel Rate
6.376 GPixel/s
Texture Rate
25.50 GTexel/s
FP32 (float) performance
612.1 GFLOPS
FP64 (double) performance
25.50 GFLOPS (1:24)

Board Design

Slot Width
Single-slot
Length
145 mm
5.7 inches
TDP
50 W
Suggested PSU
350 W
Outputs
1x DVI
1x HDMI
1x DisplayPort
Power Connectors
None
Board Number
P2010

Graphics Features

DirectX
12 (11_0)
OpenGL
4.6
OpenCL
1.2
Vulkan
1.1
CUDA
3.0
Shader Model
5.1

Card Notes

Variant Memory: 4096MB DDR3
Variant Memory: 1024MB GDDR5

GK107 GPU Notes

L1 Cache is configurable from 16 KB up to 48 KB per SMX

Retail boards based on this design (3)

Name GPU Clock Memory Clock Other Changes
ASUS GT 640 4 GB 797 MHz 891 MHz 4 GB
NVIDIA GeForce GT 640 OEM 1 GB 954 MHz 1250 MHz 1024 MB, GDDR5
NVIDIA GeForce GT 640 OEM 2 GB 797 MHz 891 MHz