ASUS ROG Strix NVIDIA GeForce RTX 3080 OC Edition Gaming Graphics Card
Bottom line: The ASUS ROG Strix NVIDIA GeForce RTX 3080 OC Edition Gaming Graphics Card ($1,099.00 on Amazon as of 2026-10-20 22:16 UTC): 12GB GDDR6X at 19 Gbps, more VRAM than the original 10GB RTX 3080; main trade-off: 2.9-slot thickness can block nearby PCIe slots in compact cases.
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*Price sourced from Amazon.com. Last updated 2026-10-20. Price and availability subject to change.
Pros & Cons
Pros
- ✓ 12GB GDDR6X at 19 Gbps, more VRAM than the original 10GB RTX 3080
- ✓ 2.9-slot heatsink with more cooling area than ASUS's last-gen Strix
- ✓ Axial-tech fans with more blades and a reverse-spinning center fan
- ✓ HDMI 2.1 output for 4K high-refresh TVs and monitors
- ✓ 3rd-gen Tensor cores run DLSS, with support up to 8K (7680 x 4320)
Cons
- ✗ 2.9-slot thickness can block nearby PCIe slots in compact cases
- ✗ LHR (Lite Hash Rate) design limits crypto mining hash rates
- ✗ No DLSS 3 frame generation, which needs an RTX 40-series or newer card
- ✗ 12GB VRAM limits the size of local AI models you can fully load
Manufacturer description
The ASUS ROG Strix GeForce RTX 3080 OC Edition puts NVIDIA's Ampere architecture in one of the most heavily cooled RTX 3080 designs available. This version has 12GB of GDDR6X memory running at 19 Gbps, which gives you more frame buffer for high-resolution textures than the original 10GB RTX 3080. The Ampere streaming multiprocessors double FP32 throughput over the previous generation. The 2nd-generation RT cores double ray tracing throughput and can run ray tracing and shading at the same time. The 3rd-generation Tensor cores power DLSS, which raises frame rates at 1440p, 4K and up to 8K…
SpecPicks Verdict
SpecPicks scored ASUS ROG Strix NVIDIA GeForce RTX 3080 OC Edition Gaming Graphics Card using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the graphics cards category. Compare with similarly-priced alternatives in the graphics cards category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for graphics cards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Will the ASUS ROG Strix RTX 3080 12GB fit in my case?
The card is 2.9 slots thick, so you need about three free expansion slots of clearance under the PCIe slot. Check the ASUS product listing for the exact length and height and compare them with your case's maximum GPU length before you buy.
Does this RTX 3080 support 8K and HDMI 2.1?
Yes. It has an HDMI 2.1 output, a maximum digital resolution of 7680 x 4320, and DisplayPort 1.4a. The 3rd-gen Tensor cores support DLSS at resolutions up to 8K.
How much memory does this version have, and how fast is it?
This OC Edition has 12GB of GDDR6X memory running at 19 Gbps, on a PCIe 4.0 interface. That is 2GB more than the original 10GB RTX 3080.
What does LHR mean on this graphics card?
LHR stands for Lite Hash Rate. NVIDIA built it in to lower cryptocurrency mining performance. It does not limit gaming, ray tracing or DLSS, so it only matters if you plan to mine.
What power supply and warranty does the ROG Strix RTX 3080 OC need and come with?
This listing does not state the recommended PSU wattage, power connectors or warranty length. Check the ASUS product page or the current listing for the PSU requirement and warranty terms before ordering.
Key Features
- Memory Speed:19 Gbps.Digital Max Resolution:7680 x 4320
- NVIDIA Ampere Streaming Multiprocessors: The building blocks for the world’s fastest, most efficient GPU, the all-new Ampere SM brings 2X the FP32 throughput and improved power efficiency.
- 2nd Generation RT Cores: Experience 2X the throughput of 1st gen RT Cores, plus concurrent RT and shading for a whole new level of ray tracing performance.
- 3rd Generation Tensor Cores: Get up to 2X the throughput with structural sparsity and advanced AI algorithms such as DLSS. Now with support for up to 8K resolution, these cores deliver a massive boost in game performance and all-new AI capabilitiesAvoid using unofficial software
- Axial-tech Fan Design has been tuned up with more fan blades and a reversed rotational direction for the center fan.
- 2.9-slot design expands cooling surface area compared to last gen for more thermal headroom than ever before.
Full Specifications
| Brand | ASUS |
|---|---|
| GPU Series | NVIDIA RTX 30 Series |
| Model Name | ROG-STRIX-RTX3080-O12G-GAMING |
| Unit Count | 1 Count |
| Memory Speed | 19 Gbps.Digital Max Resolution:7680 x 4320 |
| Model Number | ROG-STRIX-RTX3080-O12G-GAMING |
| Built-In Media | Collection card, ROG Velcro Hook & Loop, ROG ruler, ROG-STRIX-RTX3080-O12G-GAMING Graphics cards, Sppedsetup Manual |
| Item Type Name | Graphics cards |
| Number of Fans | 3 |
| Mfr Part Number | ROG-STRIX-RTX3080-O12G-GA |
| Number of Items | 1 |
| Number of Packs | 1 |
| Video Processor | NVIDIA |
| Antenna Location | Gaming |
| Graphics Card Ram | 12 GB |
| Graphics Ram Size | 12 GB |
| Graphics Ram Type | GDDR6X |
| Compatible Devices | Desktop |
| Memory Clock Speed | 4000 MHz |
| Graphics Coprocessor | NVIDIA GeForce RTX 3080 |
| Full listing title | ASUS ROG Strix NVIDIA GeForce RTX 3080 OC Edition Gaming Graphics Card (PCIe 4.0, 12GB GDDR6X, LHR, HDMI 2.1, DisplayPort 1.4a, Axial-tech Fan Design, 2.9-Slot, Super Alloy Power II, GPU Tweak II) |
Performance Data
View gaming FPS, AI inference throughput, and synthetic scores for the NVIDIA GeForce RTX 3080 — the core hardware component in this product. Benchmarks sourced from TechPowerUp, PassMark, and the r/LocalLLaMA community.
Which local LLMs fit in 10 GB?
10 GB holds an 8B model at Q4 with a few thousand tokens of context; a 12–14B model needs 12 GB.
- ✅ 7–9B models (Llama 3.1 8B, Qwen 3 8B) — fits at Q4
- ❌ 12–14B models (Qwen 3 14B, Phi-4) — needs 12 GB+
- ❌ 20–27B models (Gemma 3 27B, Mistral Small) — needs 20 GB+
- ❌ 30–35B models (Qwen 3 32B, QwQ 32B) — needs 24 GB+
- ❌ 70B models (Llama 3.3 70B, Qwen 2.5 72B) — needs 48 GB+
Across 17 community runs from 12 sources, the NVIDIA GeForce RTX 3080 generates a median 98.7 tok/s on 7–9B models at Q4 (per llama.cpp GitHub (Vulkan performance discussion)).
Ready to buy?
ASUS ROG Strix NVIDIA GeForce RTX 3080 OC Edition Gaming Graphics Card (PCIe 4.0, 12GB GDDR6X, LHR, HDMI 2.1, DisplayPort 1.4a, Axial-tech Fan Design, 2.9-Slot, Super Alloy Power II, GPU Tweak II) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-20. Price and availability subject to change.
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