The H800 is newer, with 13x the memory and 6.9x the bandwidth.

At a glance

Memory

13x more on H800

GTX 1660 Ti
6 GB
H800
80 GB

Memory bandwidth

6.9x higher on H800

GTX 1660 Ti
288 GB/s
H800
2,000 GB/s

Cheapest on-demand

GTX 1660 Ti
--
H800
--

Price comparison

Median price per GPU per hour by billing type, with the cheapest listing under it.

Specs comparison

Spec GTX 1660 Ti H800 Difference
Memory
Capacity 6 GB GDDR6 80 GB HBM2e 13x more on H800
Bandwidth 288 GB/s 2,000 GB/s 6.9x higher on H800
Bus width 192-bit 5,120-bit 27x wider on H800
Compute · dense
FP8 Not supported 1,513 TFLOPS H800 only
FP16 / BF16 10.9 TFLOPS 756.5 TFLOPS 70x higher on H800
INT8 Not supported 1,513 TOPS H800 only
FP32 5.4 TFLOPS 51 TFLOPS 9.4x higher on H800
Platform
Interconnect PCIe only NVLink 400 GB/s NVLink on H800 only
Board power 120 W 350 W 2.9x higher on H800
Released Q1 2019 Q1 2023 4 years newer on H800
Precision
Supported formats FP16FP32 FP8FP16BF16TF32FP32FP64INT8

Compute: Vendor peak figures, dense and per GPU. Not measured throughput.

Source: GTX 1660 Ti datasheet .

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Our data for Nvidia GTX 1660 Ti was last updated on Nov. 13, 2026, and for Nvidia H800 on Sept. 14, 2026.