The GeForce GT 1030 graphics card from ASUS is one option for you if you're upgrading your computer. It has a GPU clock speed of 1.27 GHz. The GDDR5 memory clocks in at 2 GB.
From Amazon
ASUS GeForce GT 1030 2GB GDDR5 low profile graphics card for silent HTPC build (with I/O port brackets)
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