The RTX PRO 4000 SFF is newer, with 4x the memory and 50% more bandwidth.
At a glance
Memory
4x more on RTX PRO 4000 SFF
- GTX 1660 Ti
- 6 GB
- RTX PRO 4000 SFF
- 24 GB
Memory bandwidth
50% higher on RTX PRO 4000 SFF
- GTX 1660 Ti
- 288 GB/s
- RTX PRO 4000 SFF
- 432 GB/s
Cheapest on-demand
- GTX 1660 Ti
- --
- RTX PRO 4000 SFF
- $0.38 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | GTX 1660 Ti | RTX PRO 4000 SFF | Difference |
|---|---|---|---|
| On-demand | No on-demand listings | -- /GPU/hr from $0.38 |
Heads up: A provider's own page may quote a different figure, for example on tax, region or a promotion. A monthly-only plan shows a derived hourly rate. Medians are across providers, one vote each, so a large catalog does not outweigh a small one. No median for on-demand on the RTX PRO 4000 SFF: we only show one when at least 3 providers list the GPU on that billing type. Verify before provisioning. More on how we price.
Specs comparison
| Spec | GTX 1660 Ti | RTX PRO 4000 SFF | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 6 GB GDDR6 | 24 GB GDDR7 | 4x more on RTX PRO 4000 SFF |
| Bandwidth | 288 GB/s | 432 GB/s | 50% higher on RTX PRO 4000 SFF |
| Bus width | 192-bit | 192-bit | Identical |
| Compute · dense | |||
| FP4 | Not supported | 385 TFLOPS | RTX PRO 4000 SFF only |
| FP8 | Not supported | 192.5 TFLOPS | RTX PRO 4000 SFF only |
| FP16 / BF16 | 10.9 TFLOPS | 96.3 TFLOPS | 8.9x higher on RTX PRO 4000 SFF |
| INT8 | Not supported | 192.5 TOPS | RTX PRO 4000 SFF only |
| FP32 | 5.4 TFLOPS | 24 TFLOPS | 4.4x higher on RTX PRO 4000 SFF |
| Platform | |||
| Interconnect | PCIe only | PCIe only | |
| Board power | 120 W | 70 W | 71% higher on GTX 1660 Ti |
| Released | Q1 2019 | Q3 2025 | 6 years newer on RTX PRO 4000 SFF |
| Precision | |||
| Supported formats | FP16FP32 | FP4FP8FP16BF16TF32FP32INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: GTX 1660 Ti datasheet and RTX PRO 4000 SFF datasheet.
Where to rent them
Providers that rent these GPUs, with each one's cheapest rate. No provider we track offers both right now.
| Provider | GTX 1660 Ti | RTX PRO 4000 SFF |
|---|---|---|
Hetzner
Germany
|
-- | $0.38 /GPU/hr On-demand |
Similar GPUs
Other comparisons in the same class.
-
Nvidia RTX 3060
12 GB GDDR6 · 25% more bandwidth than the GTX 1660 Ti
On-demand from $0.08 /GPU/hr -
Nvidia RTX 2060
6 GB GDDR6 · 17% more bandwidth than the GTX 1660 Ti
On-demand from $0.06 /GPU/hr
-
Nvidia GTX 1660 Super
6 GB GDDR6 · 17% more bandwidth than the GTX 1660 Ti
On-demand from $0.04 /GPU/hr
-
Nvidia RTX PRO 4000
24 GB GDDR7 · 56% more bandwidth than the RTX PRO 4000 SFF
On-demand from $0.27 /GPU/hr
Our data for Nvidia GTX 1660 Ti was last updated on Nov. 13, 2026, and for Nvidia RTX PRO 4000 SFF on Nov. 9, 2026.