NVIDIA GeForce GT 645 OEM vs NVIDIA Quadro P520 Mobile

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Table of Contents

Graphics Processor
Graphics Card
Clocks
Memory Configuration
Render Configuration
Performance
Dimensions & Outputs
API Support & Features
Other Features
Mobile graphics

Graphics Processor

GPU model	GF114	GP108
Architecture	Fermi 2.0	Pascal
Foundry	TSMC	Samsung
Manufacturing process	40 nm	14 nm
Number of transistors	1,950 million	1,800 million
Die size	332 mm²	74 mm²

Graphics Card

Release date	Apr 24th, 2012	—
Generation	GeForce 600	—
Production	End-of-life	—
Interface	PCIe 2.0 x16	—
Predecessor	GeForce 500	—
Successor	GeForce 700	—

Clocks

GPU clock	776 MHz	—
Shader clock	1552 MHz	—
Memory clock	957 MHz 3.8 Gbps effective	1502 MHz 6 Gbps effective
Base clock	—	1303 MHz
Boost clock	—	1493 MHz

Memory Configuration

Memory size	1024 MB	2 GB
Memory type	GDDR5	GDDR5
Memory bus width	192 bit	64 bit
Bandwidth	91.87 GB/s	48.06 GB/s

Render Configuration

Shading units	288	384
TMUs	48	24
ROPs	24	16
SM count	6	3
Cache L1	64 KB (per SM)	48 KB (per SM)
Cache L2	384 KB	512 KB

Performance

Pixel rate	9.312 GPixel/s	23.89 GPixel/s
Texture rate	37.25 GTexel/s	35.83 GTexel/s
FP32 (float) performance	894.0 GFLOPS	1,147 GFLOPS
FP64 (double) performance	74.50 GFLOPS (1:12)	35.83 GFLOPS (1:32)
FP16 (half) performance	—	17.92 GFLOPS (1:64)

Dimensions & Outputs

Slot width	Dual-slot	—
Length	210 mm 8.3 inches	—
TDP	102 W	18 W
Suggested PSU	300 W	—
Outputs	2x DVI1x mini-HDMI	No outputs
Power connectors	—	None

API Support & Features

DirectX	12 (11_0)	12 (12_1)
OpenGL	4.6	4.6
OpenCL	1.1	3.0
Vulkan	—	1.2
CUDA	2.1	6.1
Shader model	5.1	6.4

Other Features

Mobile graphics

Release date	—	May 23rd, 2019
Generation	—	Quadro Mobile (Px200)
Production	—	End-of-life
Interface	—	PCIe 3.0 x16

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