GPU Comparison

Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.

Quick Verdict

On raw speed the Radeon RX 6900 XT comes out dramatically faster — about 300% ahead of the GeForce GTX 1660. But the GeForce GTX 1660 is the better value, undercutting it by $640 GBP for the performance you get.

Maximum Capacity Reached. Remove a model to add another. (2/2)

VS
NVIDIA
GeForce GTX 1660
Price
£60
Performance
10%
VRAM
6 GB GDDR5
Key Specs Advantage

Comparable or lower specs

Price
£700
Performance
40%
VRAM
16 GB GDDR6
Key Specs Advantage
+264% Stream Processors (5,120 vs 1,408)
+167% Bandwidth (512 GB/s vs 192 GB/s)
+33% Memory Bus (256-bit vs 192-bit)

Radeon RX 6900 XT vs GeForce GTX 1660: In-Depth Breakdown

Performance: Radeon RX 6900 XT vs GeForce GTX 1660

The Radeon RX 6900 XT is dramatically faster, around 300% ahead of the GeForce GTX 1660. That gap is enough to move it up a tier: the Radeon RX 6900 XT is comfortable at 1440p, while the GeForce GTX 1660 is better matched to entry-level 1080p.

Price & Value

The GeForce GTX 1660 currently lists from $60 GBP, $640 GBP less than the Radeon RX 6900 XT at $700 GBP. Despite being slower, the GeForce GTX 1660 offers the better performance-per-dollar (~192% better value), so budget-focused buyers should weigh it carefully. The GeForce GTX 1660 is trading below its $219 GBP MSRP — a genuine deal. The Radeon RX 6900 XT is trading below its $999 GBP MSRP — a genuine deal.

Power & Efficiency

On power, the GeForce GTX 1660 is the gentler choice at 120W versus 300W. The Radeon RX 6900 XT is more efficient per watt because it's faster, but its higher 300W draw means more heat and a bigger PSU. Its more modern RDNA 2 architecture on a TSMC N7 process is part of why it does more with each watt.

VRAM & Future-Proofing

The Radeon RX 6900 XT carries 16GB versus 6GB on the GeForce GTX 1660. The extra 10GB helps at 4K, with high-resolution texture packs, and for content-creation or local-AI workloads that exhaust smaller buffers.

Features & Ecosystem

Beyond raw numbers, the GeForce GTX 1660 brings NVIDIA DLSS upscaling/frame generation and stronger ray tracing, while the Radeon RX 6900 XT offers AMD FSR upscaling and strong rasterization value. If you lean on upscaling or ray tracing, that ecosystem difference can matter as much as the frame-rate gap.

Which should you buy: GeForce GTX 1660 or Radeon RX 6900 XT?

Choose the Radeon RX 6900 XT if you want the most performance and can absorb the higher price. If you're optimizing for value, the GeForce GTX 1660 stretches your money further for only slightly lower performance.

Frequently Asked Questions

Is the Radeon RX 6900 XT better than the GeForce GTX 1660?

The Radeon RX 6900 XT is dramatically faster, roughly 300% ahead. The GeForce GTX 1660 is still worth it if value matters more than top-end frames.

Which is better for 4K gaming, the GeForce GTX 1660 or the Radeon RX 6900 XT?

Neither is a dedicated 4K card; both are best at 1440p. For 4K you'd want a faster GPU, or lean on upscaling.

Is the Radeon RX 6900 XT worth the extra $640 GBP over the GeForce GTX 1660?

Only if you need the extra performance or features; on pure value the GeForce GTX 1660 comes out ahead.

Does the Radeon RX 6900 XT have enough VRAM advantage to matter?

Its 16GB (vs 6GB) gives real headroom for 4K, heavy texture mods, and creative/AI work. At 1080p the gap matters less.

Technical Specifications Comparison

Architecture & Cores

SpecificationGeForce GTX 1660Radeon RX 6900 XT
ArchitectureTuringRDNA 2
Process NodeTSMC 12nmTSMC N7
CUDA Cores (CUDA Cores / Stream Processors)1,4085,120
Ray Tracing Cores80

Clock Speeds

SpecificationGeForce GTX 1660Radeon RX 6900 XT
Base Clock1,530 MHz1,825 MHz
Boost Clock1,785 MHz2,250 MHz

Memory

SpecificationGeForce GTX 1660Radeon RX 6900 XT
VRAM Capacity6 GB16 GB
Memory TypeGDDR5GDDR6
Memory Bus192-bit256-bit
Memory Speed8 Gbps16 Gbps
Bandwidth192 GB/s512 GB/s

Connectivity & Power

SpecificationGeForce GTX 1660Radeon RX 6900 XT
InterfacePCIe 3.0 x16PCIe 4.0 x16
TDP120 W300 W
Power Connectors1x 8-pin2x 8-pin
ReleasedMar 2019Dec 2020