GIGABYTE GeForce RTX 5080 GAMING OC 16G vs GIGABYTE GeForce RTX 5070 GAMING OC 12G

Researched, not hands-on tested.How we review ›

all judged against graphics cards at a similar price

The GIGABYTE GeForce RTX 5080 GAMING OC 16G scores 6.9/10 overall, ahead of the GIGABYTE GeForce RTX 5070 GAMING OC 12G at 6.1/10.

The GIGABYTE GeForce RTX 5080 GAMING OC 16G leads on performance and video memory.

The GIGABYTE GeForce RTX 5070 GAMING OC 12G leads on software support and size and fit.

They score the same on efficiency and noise and build and warranty.

GIGABYTE GeForce RTX 5080 GAMING OC 16G

6.9/10verdict: buy

This is a factory-overclocked RTX 5080 for buyers who want a quiet, well-cooled high-end card and have a case with room for it. It suits gaming and local AI work that fits within 16GB of video memory. It needs a roomy case, and it has one 16-pin 12V-2x6 power connector with an 850W power supply recommended by Gigabyte.

Typically about £1,510 in the UK when we researched itCheck price at Amazon UK

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GIGABYTE GeForce RTX 5070 GAMING OC 12G

6.1/10verdict: good, not the best

This is a 12GB RTX 5070 for people building a 1440p gaming PC who want a factory-overclocked card with a long warranty. It suits buyers with a roomy case and a 750 W power supply. It is a less natural fit for small chassis or for anyone planning to run large local AI models.

Typically about £610.49 in the UK when we researched itCheck price at Amazon UK

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Scores, criterion by criterion

Criterion	Weight	GIGABYTE GeForce RTX 5080 GAMING OC 16G	GIGABYTE GeForce RTX 5070 GAMING OC 12G
Performance	30%	8/10	6/10
Video memory	25%	7/10	5/10
Software support	15%	6/10	7/10
Efficiency and noise	15%	7/10	7/10
Size and fit	10%	4/10	5/10
Build and warranty	5%	8/10	8/10
Overall		6.9/10	6.1/10

Specifications

Spec	GIGABYTE GeForce RTX 5080 GAMING OC 16G	GIGABYTE GeForce RTX 5070 GAMING OC 12G
GPU	GeForce RTX 5080, 10752 CUDA cores, core clock 2730 MHz (reference 2617 MHz)	NVIDIA GeForce RTX 5070, 6144 CUDA cores, 2512 MHz base, 2625 MHz OC boost
Video memory	16GB GDDR7, 256-bit bus, 30 Gbps memory clock	12 GB GDDR7, 192-bit bus, 28 Gbps
Board power	not listed	250 W reference TDP
Length and slots	L=340 mm, W=140 mm, H=70 mm; PCB form ATX	327 mm long, 132 mm wide, 56 mm high
Display outputs	DisplayPort 2.1b x3, HDMI 2.1b x1	3x DisplayPort 2.1b, 1x HDMI 2.1b
Power connector	One 16-pin (12V-2x6) power connector	1x 16-pin PCIe power connector (12V-2x6), 2x 8-pin adapter in box

Strengths and weaknesses

GIGABYTE GeForce RTX 5080 GAMING OC 16G

+ Quiet fans and low temperatures, per owners and TechPowerUp
+ 4-year warranty with a reinforced metal backplate
+ 16GB GDDR7 on a 256-bit bus
− Large at 340 mm long and 70 mm high
− 16GB is fixed, which caps larger AI models
− Gigabyte doesn't publish board power

Skip it if:

Anyone building in a compact or small-form-factor case.
Buyers running local AI models that need more than 16GB of video memory.
Buyers who want a published board power figure before choosing a power supply.

Read the full GIGABYTE GeForce RTX 5080 GAMING OC 16G review ›

GIGABYTE GeForce RTX 5070 GAMING OC 12G

+ Owners praise cool temperatures and 1440p performance
+ Dual BIOS and a four-year warranty with registration
+ Included 2x 8-pin adapter for the 16-pin connector
− 12GB of video memory limits larger local AI models
− 327 mm long and 2 kg, so it needs space
− Driver download listed for Windows 10 and 11 only

Skip it if:

Anyone building a small-form-factor PC or compact server with limited card length
Buyers who need more than 12GB of video memory for larger local AI models
Linux users who want a manufacturer-listed driver download

Read the full GIGABYTE GeForce RTX 5070 GAMING OC 12G review ›

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