NVIDIA GeForce GTX 1660 Ti
vs
AMD Radeon RX Vega 64

Our Verdict: Upgrading from GTX 1660 Ti to RX Vega 64 is not recommended as it is less than 30% of improvement in performance. In general, a reasonable upgrade is between 30% and 50% or more to justify the purchase of new hardware.

Game Performance at selected quality settings

NVIDIA GeForce GTX 1660 Ti / i7-8700K

It is clear that the GTX 1660 Ti is a significantly more capable high-end card that can play AAA titles at 1080p/1440p with 50-60 frames per second. The price/performance ratio is excellent for GTX 1660 Ti against the competition in budget mid-range cards. In terms of memory, the GTX 1660 Ti 's 6144 MB RAM is more than enough for modern games and should not cause any bottlenecks. With regards to max load temperature, the GTX 1660 Ti 's cooling is excellent at keeping it cool and under control. In short the performance is exceptional, there's no question that this is one of the most powerful single GPU out there in 2019 .

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AMD Radeon RX Vega 64 / i7-7700K

It is worth noting that the RX Vega 64 is a very power hungry card and requires a decent power supply unit. In terms of memory, the RX Vega 64 's 8192 MB RAM is more than enough for modern games and should not cause any bottlenecks. It is important to know that RX Vega 64 's max load temperature is very high and might require custom cooling solutions. In short the performance is exceptional, there's no question that this is one of the most powerful single GPU out there in 2017 .

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Board Design

	GTX 1660 Ti	RX Vega 64
Length	9 inches 229 mm	11 inches 279 mm
Outputs	1x DVI1x HDMI1x DisplayPort	1x HDMI3x DisplayPort
Power Connectors	1x 8-pin	2x 8-pin
Slot Width	Dual-slot	Dual-slot
TDP	120 W	295 W

Clock Speeds

	GTX 1660 Ti	RX Vega 64
Boost Clock	1770 MHz	1536 MHz
GPU Clock	1500 MHz	1200 MHz
Memory Clock	1500 MHz 12000 MHz effective	945 MHz 1890 MHz effective

Graphics Card

	GTX 1660 Ti	RX Vega 64
Bus Interface	PCIe 3.0 x16	PCIe 3.0 x16
Generation	GeForce 1600	Vega (RX Vega)
Production	Released	Active
Release Date	Feb 22, 2019	Aug 7th, 2017

Graphics Features

	GTX 1660 Ti	RX Vega 64
DirectX	12.0 (12_1)	12.0 (12_1)
OpenCL	1.2	2
OpenGL	4.6	4.6
Shader Model	6.2	6.1
Vulkan	1.1.96	1.1.82

Graphics Processor

	GTX 1660 Ti	RX Vega 64
Architecture	Turing	GCN 5.0
Die Size	284 mm²	510 mm²
GPU Name	TU116	Vega 10
Process Size	12 nm	14 nm
Transistors	6,600 million	12,500 million

Memory

	GTX 1660 Ti	RX Vega 64
Bandwidth	288.0 GB/s	483.8 GB/s
Memory Bus	192 bit	2048 bit
Memory Size	6144 MB	8192 MB
Memory Type	GDDR6	HBM2

Render Config

	GTX 1660 Ti	RX Vega 64
ROPs	48	64
Shading Units	1536	4096
TMUs	96	256

Theoretical Performance

	GTX 1660 Ti	RX Vega 64
FP16 (half) performance	10,875 GFLOPS (2:1)	25,166 GFLOPS (2:1)
FP32 (float) performance	5,437 GFLOPS	12,583 GFLOPS
FP64 (double) performance	169.9 GFLOPS (1:32)	786.4 GFLOPS (1:16)
Pixel Rate	84.96 GPixel/s	98.30 GPixel/s
Texture Rate	169.9 GTexel/s	393.2 GTexel/s