the effect of heat on a gpu
TRANSCRIPT
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THE EFFECT OF HEAT ON A
GPUPROJECT BY: KYLE BARR
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INTRODUCTION
•How Heat affects Performance
• Execute 3D environment applications to test the heat
generated from computing.
HYPOTHESIS If the graphics card generates a certain amount of heat, then the performance of the graphics card will be affected.
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WHAT IS A GPU?• A computer expansion card.
• Stands for “Graphics Processing Unit.
• Consists of a Silicon-based microprocessor.
• Generates a 3D image on an X, Y, and Z axis.
• Each image is known as a frame, and it generates multiple
frames per second (fps) to output a raw real time video.
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WHAT IS A GPU? (CONTINUED)
•Generally used to boost graphics performance
•Allows for smoother running and higher quality
graphics dependent on card installed.
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THE “BARR” THEOREM
•An equation to determine a score based upon clock
speed, performance, and temperature. (Created by Kyle
Barr)p = Performance (FPS)t = Temperature (ºC)c= Clock Speed (Mhz)
𝑝 100 + 𝑡(−1)
2− 𝑡 − 𝑐 0.1 = 𝑥
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EXAMPLE
Performance = 100 FPS
Temperature = 50ºC
Clock = 1200Mhz
100 100 + 50(−1)
2− 50 − 1200 0.1 = 4805
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MATERIALS
• ASUS GTX 770 DCuII Graphics Card
• “Bluefire PC” (custom PC)
• Unigine Valley v1.0 Benchmark
• ASUS GPU Tweak 2.0 (tuning software)
• GPU-Z: GPU Analytics Software
• Fraps: FPS Logging Software
• Windows 7 64-Bit OS
• Thermometer (for room temperature)
• ASUS VG248QE 1080p 144hz 1ms monitor
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PROCEDURE
1. Check room temperature to be between 22ºC to 23ºC
2. Open all needed programs (Benchmark, GPU Tweak, GPU-Z, Fraps)
3. Set benchmark settings to specified settings
4. Start the GPU-Z and Fraps logs and record what time
(Hours:Minutes:Seconds) it was started
5. Start benchmark and run for 5 minutes
6. End benchmark and logging software, and align times on GPU-Z log
and Fraps log in Excel.
7. Log results into the “Barr” theorem with the Maximum, Minimum,
and Average, then average the output of the equations.
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RESULTS
• As each trial progressed the heat increased
• Trend lines suggest that performance decreased and
temperature increased
• Performance decrease is slight, but noticeable
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Heat
/ F
PS v
alu
e (H
eat
= º
C /
FPS =
Fra
mes P
er
Second)
Seconds
Average Heat and Performance
Heat FPS Linear (Heat) Linear (FPS)
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40
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RESULTS
• Final scores ranged between 4150-4600
• The average, minimum and maximum are taken from the “Barr” Theorem, then averaged out.
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CONCLUSION
•As the temperature of the card increased the
performance output was decreased.
•All tests had proven hypothesis.
•Further use: To help create better cooling
solutions so GPUs can perform at the best
possible level.
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ACKNOWLEDGEMENTS
•Mrs. Kuruc
•Mr. Jaeger
•Mr. Eberling
•My parents
Thank you all for your support and ideas
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• Angelini, Chris. "The GeForce GTX 770 Review: Calling In A Hit On Radeon HD 7970?" www.tomshardware.co.uk.Toms Hardware, 30 May 2013. Web. 27 Sept. 2013.
• Baker, Shawn. "MSI GeForce GTX 770 Lightning 2GB Overclocked Video Card Review." www.tweaktownnews.com.Tweak Town News, 19 July 2013. Web. 25 Sept. 2013.
• Hagedoorn, Hilbert. "MSI GeForce GTX 770 Gaming Review." www.guru3d.com. Guru3D, 20 May 2013. Web. 24 Sept.2013.
• Kirsch, Nathan. "MSI GeForce GTX 770 Gaming and ASUS GeForce GTX 770 DirectCuII Review." www.legitreviews.com.Legit Reviews, 30 May 2013. Web. 27 Sept. 2013.
• McKinney, Grady. "HARDOCP - Introduction - ASUS GeForce GTX 770 DirectCU II Video Card Review." HardOCP.www.hardocp.com, 17 June 2013. Web. 25 Sept. 2013.
• Shrout, Ryan . "Galaxy GeForce GTX 770 GC 2GB Review." www.pcper.com. PC Perspective, 13 July 2013. Web. 25Sept. 2013.
• SKYMTL. "ASUS GTX 770 DirectCU II OC Review." Hardware Canucks RSS. Www.hardwarecanucks.com, 29 Sept. 2013.Web. 2 Oct. 2013.
• Smith, Ryan . "AnandTech | NVIDIA GeForce GTX 770 Review: The $400 Fight." www.anandtech.com/. AnandTech, 30May 2013. Web. 25 Sept. 2013.
• Weatherstone, Richard. "ASUS GTX 770 DirectCU II OC Review." Www.vortez.net. Vortez, 23 Aug. 2013. Web. 25 Sept.2013.
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LITERATURE CITED