NVIDIA GeForce GTX 1660 Ti vs NVIDIA GeForce RTX 5090

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GeForce GTX 1660 Ti compared with GeForce RTX 5090

	NVIDIAGeForce GTX 1660 Ti	NVIDIAGeForce RTX 5090
Overview
Released
Released	February 2019	January 2025
Performance
Chip maker
Chip maker	NVIDIA	NVIDIA
Architecture
Architecture	Turing	Blackwell
Shader cores
Shader cores	1,536	21,760
Boost clock
Boost clock	1,770 MHz	2,407 MHz (better)
Architecture
Architecture	NVIDIA reference figures; no Founders Edition was sold. Photo shows MSI's stock-clocked GTX 1660 Ti VENTUS XS 6G, whose dimensions and outputs are specified below.	GB202 GPU; 170 SMs, 680 texture units, 176 ROPs
Manufacturing process
Manufacturing process	–	TSMC 4nm (4N NVIDIA custom process); 92.2 billion transistors; 750 mm² die
Ray tracing
Ray tracing	No dedicated RT Cores	170 fourth-generation RT Cores; 318 RT TFLOPS
AI cores
AI cores	No Tensor Cores	680 fifth-generation Tensor Cores; 3352 AI TOPS
Upscaling and frame generation
Upscaling and frame generation	No NVIDIA DLSS	DLSS 4.5 with Super Resolution, DLAA, Ray Reconstruction, Frame Generation, Multi Frame Generation and Dynamic Multi Frame Generation
Base clock
Base clock	1500 MHz	2.01 GHz
Cache
Cache	–	96 MB L2
Memory
Video memory
Video memory	6 GB GDDR6	32 GB GDDR7 (better)
Memory bus
Memory bus	192-bit	512-bit (better)
Memory bandwidth
Memory bandwidth	–	1,792 GB/s
Memory detail
Memory detail	12 Gbps GDDR6 (MSI VENTUS XS 6G); numerical bandwidth omitted because the maker sources used do not publish it.	GDDR7 at 28 Gbps
Connections and power
Board power
Board power	120 W (better)	575 W
Interface
Interface	PCIe 3.0	PCIe 5.0
Display outputs
Display outputs	3 × DisplayPort 1.4a and 1 × HDMI 2.0b; up to 4 displays; HDCP 2.2 (MSI VENTUS XS 6G)	3 × DisplayPort 2.1b (UHBR20), 1 × HDMI 2.1b; up to 4 displays; HDCP 2.3
Maximum resolution
Maximum resolution	7680 × 4320 (MSI VENTUS XS 6G)	4K at 480 Hz or 8K at 165 Hz with DSC
Power connector
Power connector	1 × 8-pin	1 × 600 W PCIe Gen 5 cable, or 4 × PCIe 8-pin cables with the adapter in the box
Recommended power supply
Recommended power supply	450 W	1000 W
Slot width
Slot width	–	2-slot (Founders Edition)
Size (reference card)
Size (reference card)	204 × 128 × 42 mm and 669 g (pictured MSI VENTUS XS 6G). NVIDIA's reference dimensions are 145 × 111 mm, two slots; actual partner boards vary.	304 × 137 mm, 2-slot (Founders Edition)
Video encode and decode
Video encode and decode	Turing NVENC encoder, also used by the contemporary RTX range	3 × ninth-generation NVENC, 2 × sixth-generation NVDEC; AV1 encode and decode