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NVIDIA GeForce GT 645 OEM

Graphics Processor
GF114
Cores
288
TMUs
48
ROPs
24
Memory Size
1024 MB
Memory Type
GDDR5
Bus Width
192 bit
The GeForce GT 645 OEM was a graphics card by NVIDIA, launched in April 2012. Built on the 40 nm process, and based on the GF114 graphics processor, the card supports DirectX 12.0. The GF114 graphics processor is a large chip with a die area of 332 mm² and 1,950 million transistors. Unlike the fully unlocked GeForce GTX 560 Ti, which uses the same GPU but has all 384 shaders enabled, NVIDIA has disabled some shading units on the GeForce GT 645 OEM to reach the product's target shader count. It features 288 shading units, 48 texture mapping units and 24 ROPs. NVIDIA has placed 1,024 MB GDDR5 memory on the card, which are connected using a 192-bit memory interface. The GPU is operating at a frequency of 776 MHz, memory is running at 957 MHz.
Being a dual-slot card, its power draw is rated at 102 W maximum. Display outputs include: 2x DVI, 1x mini-HDMI. GeForce GT 645 OEM is connected to the rest of the system using a PCI-Express 2.0 x16 interface. The card measures 210 mm in length, and features a dual-slot cooling solution.

Graphics Processor

GPU Name
GF114
Architecture
Fermi 2.0
Foundry
TSMC
Process Size
40 nm
Transistors
1,950 million
Die Size
332 mm²

Graphics Card

Release Date
Apr 24th, 2012
Generation
GeForce 600
Production
End-of-life
Bus Interface
PCIe 2.0 x16

Relative Performance

8%
GeForce 210
10%
GeForce 9400 GT
12%
Radeon HD 4550
15%
Radeon HD 5450
18%
Radeon HD 6450
19%
GeForce GT 520
23%
GeForce GT 220
31%
GeForce GT 430
31%
Radeon HD 5570
34%
Radeon HD 4670
35%
GeForce GT 440
36%
GeForce GT 240
42%
GeForce 9600 GT
44%
Radeon HD 5670
47%
GeForce GT 640
49%
GeForce 9800 GT
51%
Radeon HD 6670
52%
Radeon HD 4830
56%
Radeon HD 4770
59%
Radeon HD 4850
60%
GeForce GTS 250
62%
GeForce GTS 450
64%
Radeon HD 5750
74%
Radeon HD 7750
74%
Radeon HD 5770
75%
GeForce GTX 260
76%
Radeon HD 4870
77%
Radeon Vega 8
77%
GeForce GTX 550 Ti
78%
GeForce GTX 650
83%
Radeon HD 5830
87%
Radeon HD 6790
88%
Radeon HD 4890
91%
GeForce GTX 460
92%
Radeon RX Vega 11
93%
GeForce GT 1030
94%
GeForce GTX 275
94%
Radeon HD 7770 GHz Edition
94%
GeForce GTX 280
96%
GeForce GTX 465
100%
GeForce GT 645 OEM
101%
Radeon HD 6850
103%
GeForce GTX 285
110%
Radeon HD 5850
112%
GeForce GTX 650 Ti
112%
Radeon HD 7790
117%
Radeon RX 550
117%
GeForce GTX 470
122%
Radeon HD 6870
130%
Radeon HD 5870
134%
GeForce GTX 560 Ti
135%
Radeon HD 4870 X2
137%
GeForce GTX 750 Ti
138%
Radeon HD 6950
143%
GeForce GTX 295
144%
GeForce GTX 650 Ti Boost
145%
Radeon HD 7850
148%
GeForce GTX 480
155%
Radeon HD 6970
158%
Radeon R7 265
160%
Radeon RX 460
160%
Radeon R7 370
161%
GeForce GTX 660
161%
GeForce GTX 570
164%
Radeon RX 560
174%
GeForce GTX 950
176%
Radeon HD 7870 GHz Edition
180%
Radeon R9 270X
182%
GeForce GTX 660 Ti
183%
GeForce GTX 580
184%
GeForce GTX 1050
185%
Radeon HD 7950
188%
Radeon HD 5970
194%
GeForce GTX 760
209%
GeForce GTX 670
214%
GeForce GTX 960
219%
Radeon R9 380
221%
Radeon R9 285
223%
Radeon HD 7970
225%
GeForce GTX 680
230%
GeForce GTX 1050 Ti
236%
GeForce GTX 770
242%
Radeon HD 6990
248%
Radeon R9 280X
251%
GeForce GTX 590
251%
Radeon HD 7970 GHz Edition
279%
GeForce GTX 780
288%
GeForce GTX 1650
307%
Radeon RX 470
311%
Radeon R9 290
328%
Radeon RX 570
332%
Radeon R9 390
333%
Radeon R9 290X
338%
GeForce GTX 970
342%
GeForce GTX TITAN
347%
GeForce GTX 780 Ti
352%
Radeon R9 390X
353%
Radeon HD 7990
355%
Radeon RX 480
358%
GeForce GTX 690
377%
Radeon RX 580
385%
GeForce GTX 980
390%
Radeon R9 FURY
390%
GeForce GTX 1060 6 GB
407%
Radeon RX 590
429%
Radeon R9 295X2
431%
GeForce GTX 1660
436%
Radeon R9 FURY X
444%
GeForce GTX 980 Ti
455%
GeForce GTX TITAN X
495%
GeForce GTX 1660 Ti
495%
GeForce GTX 1070
527%
Radeon RX Vega 56
559%
GeForce GTX 1070 Ti
575%
Radeon RX Vega 64
583%
GeForce GTX 1080
583%
GeForce RTX 2060
607%
Radeon RX 5700
655%
GeForce RTX 2060 SUPER
679%
GeForce RTX 2070
695%
Radeon RX 5700 XT
703%
Radeon VII
721%
TITAN X Pascal
743%
GeForce GTX 1080 Ti
751%
GeForce RTX 2070 SUPER
799%
GeForce RTX 2080
847%
GeForce RTX 2080 SUPER
935%
GeForce RTX 2080 Ti
Based on TPU review data: "Performance Summary" at 1920x1080
Performance estimated based on architecture, shader count and clocks.

Clock Speeds

GPU Clock
776 MHz
Shader Clock
1552 MHz
Memory Clock
957 MHz
3828 MHz effective

Memory

Memory Size
1024 MB
Memory Type
GDDR5
Memory Bus
192 bit
Bandwidth
91.87 GB/s

Render Config

Shading Units
288
TMUs
48
ROPs
24
SM Count
6
L1 Cache
64 KB (per SM)
L2 Cache
384 KB

Theoretical Performance

Pixel Rate
9.312 GPixel/s
Texture Rate
37.25 GTexel/s
FP32 (float) performance
894.0 GFLOPS
FP64 (double) performance
74.50 GFLOPS (1:12)

Board Design

Slot Width
Dual-slot
Length
8.25 inches
210 mm
TDP
102 W
Suggested PSU
350 W
Outputs
2x DVI
1x mini-HDMI

Graphics Features

DirectX
12.0 (11_0)
OpenGL
4.6
OpenCL
1.1
Vulkan
N/A
CUDA
2.1
Shader Model
5.1

Card Notes

Rebranded GTX 560 SE with higher core clock.

Variant Memory: 1536MB