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NVIDIA’s desktop GeForce RTX 40 SUPER lineup contains three cards: the RTX 4070 SUPER with 12GB, the RTX 4070 Ti SUPER with 16GB, and the RTX 4080 SUPER with 16GB. The RTX 4070 Ti SUPER is the only model that gained VRAM capacity over its direct predecessor; the other two SUPER cards retain their predecessors’ capacity.
RTX 40 SUPER memory specifications at a glance
| GPU | VRAM | Memory type | Bus | Effective speed | Bandwidth | Change versus predecessor |
|---|---|---|---|---|---|---|
| GeForce RTX 4070 SUPER | 12GB | GDDR6X | 192-bit | 21Gbps | 504GB/s theoretical | Same 12GB and 192-bit bus as RTX 4070 |
| GeForce RTX 4070 Ti SUPER | 16GB | GDDR6X | 256-bit | 21Gbps | 672GB/s | Up from 12GB and 192-bit on RTX 4070 Ti |
| GeForce RTX 4080 SUPER | 16GB | GDDR6X | 256-bit | 23Gbps | 736GB/s theoretical | Same 16GB capacity; faster memory than RTX 4080 |
These capacities and interface widths are listed in NVIDIA’s GeForce RTX 40-series specifications. NVIDIA’s launch specifications identify the RTX 4070 Ti SUPER’s 672GB/s bandwidth and the RTX 4080 SUPER’s 23Gbps memory.
Which cards are in the RTX 40 SUPER series?
The desktop SUPER family consists of only these three models:
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- GeForce RTX 4070 SUPER
- GeForce RTX 4070 Ti SUPER
- GeForce RTX 4080 SUPER
It was not a complete replacement for every RTX 40-series GPU. NVIDIA continued to list non-SUPER models such as the RTX 4090, RTX 4080, RTX 4070 Ti, RTX 4070, RTX 4060 Ti and RTX 4060. There was no officially announced desktop RTX 4090 SUPER, RTX 4060 SUPER or RTX 4060 Ti SUPER in this family.
#1 Best Overall
- Powered by NVIDIA DLSS3, ultra-efficient Ada Lovelace arch, and full ray tracing
- 4th Generation Tensor Cores: Up to 4x performance with DLSS 3 vs. brute-force rendering
- 3rd Generation RT Cores: Up to 2x ray tracing performance
- OC edition: Boost Clock 2550 MHz (OC Mode)/ 2520 MHz (Default Mode)
- Axial-tech fan design features a smaller fan hub that facilitates longer blades and a barrier ring that increases downward air pressure
NVIDIA announced the lineup on January 8, 2024. The RTX 4070 SUPER launched on January 17, the RTX 4070 Ti SUPER on January 24, and the RTX 4080 SUPER on January 31.
RTX 4070 SUPER: 12GB GDDR6X
The RTX 4070 SUPER has 12GB of GDDR6X memory on a 192-bit bus. That is the same capacity and bus width as the original RTX 4070, so it is not a 16GB graphics card.
At 21Gbps, its theoretical bandwidth is calculated as:
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21 × 192 ÷ 8 = 504GB/s
This is a theoretical memory-transfer figure, not a measured gaming-throughput result. The RTX 4070 SUPER is a strong fit for mainstream 1440p gaming and can handle many 4K games when settings and upscaling are chosen sensibly. Its 12GB capacity is less comfortable for maximum texture settings, demanding ray tracing, large mod packs, future games and professional applications that require large datasets.
For clarity, NVIDIA lists the non-SUPER RTX 4070 with either 12GB GDDR6 or 12GB GDDR6X, depending on the variant. The RTX 4070 SUPER is listed with 12GB GDDR6X. Do not assume every RTX 4070 uses identical memory chips.
Rank #2
- Powered by the NVIDIA Blackwell architecture and DLSS 4. System Requirements: Minimum 850W PSU with 16-pin 12V-2x6 (12VHPWR) connector required. Verify before purchasing.
- Military-grade components deliver rock-solid power and longer lifespan for ultimate durability. Compatibility: 348mm (13.7") length, 3.6 slots, 4.3 lbs. Confirm case clearance and slot spacing. GPU bracket included.
- Protective PCB coating helps protect against short circuits caused by moisture, dust, or debris
- 3.6-slot design with massive fin array optimized for airflow from three Axial-tech fans
- Phase-change GPU thermal pad helps ensure optimal thermal performance and longevity, outlasting traditional thermal paste for graphics cards under heavy loads
RTX 4070 Ti SUPER: 16GB GDDR6X
The RTX 4070 Ti SUPER is the lineup’s major memory upgrade. It has 16GB of GDDR6X on a 256-bit bus, compared with 12GB on a 192-bit bus for the non-SUPER RTX 4070 Ti.
The change provides:
- 33% more VRAM capacity: 16GB instead of 12GB
- A wider memory interface: 256-bit instead of 192-bit
- Higher theoretical bandwidth: 672GB/s
- More headroom for 4K textures, ray tracing, mods, content creation and some AI workloads
The bandwidth calculation is:
21 × 256 ÷ 8 = 672GB/s
The extra 4GB does not guarantee a specific frame-rate increase. Its value depends on whether a game or application was actually limited by VRAM, as well as the resolution, texture settings, ray-tracing workload and software.
RTX 4080 SUPER: 16GB with faster memory
The RTX 4080 SUPER is a 16GB GDDR6X card with a 256-bit bus. It does not have more VRAM than the original RTX 4080: both provide 16GB and use the same bus width.
The main memory-subsystem change is speed. NVIDIA specifies 23Gbps memory for the RTX 4080 SUPER, compared with 22.4Gbps for the launch-era RTX 4080 specification. Its theoretical bandwidth is:
23 × 256 ÷ 8 = 736GB/s
Faster memory can increase available bandwidth, but it does not create additional space for textures, models or other data. The RTX 4080 SUPER remains a higher-end option for 4K gaming, while the RTX 4070 Ti SUPER occupies a lower performance and price tier despite having the same 16GB capacity and 256-bit bus.
Rank #3
- Powered by NVIDIA DLSS 3, ultra-efficient Ada Lovelace arch, and full ray tracing
- 4th Generation Tensor Cores: Up to 4X performance with DLSS 3 vs. brute-force rendering
- 3rd Generation RT Cores: Up to 2X ray tracing performance
- WINDFORCE Cooling system
- Metal backplate
Capacity, bus width, speed and bandwidth are different
VRAM specifications are often reduced to a single capacity number, but each metric describes something different:
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Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →- Capacity is how much data can reside in the graphics memory, including textures, geometry, frame buffers, video data and AI or professional workloads.
- Bus width is the width of the connection between the GPU and its memory.
- Memory speed is the effective data rate, expressed in gigabits per second.
- Bandwidth is the theoretical rate at which data can move between the GPU and VRAM.
The standard calculation is memory speed × bus width ÷ 8. Capacity answers whether a workload fits; bandwidth helps determine how quickly data can be transferred. Neither metric alone determines overall performance. GPU compute resources, ray-tracing hardware, clocks, software and the workload also matter.
What 12GB and 16GB mean in practice
1440p gaming
The 12GB RTX 4070 SUPER is generally well matched to 1440p gaming, particularly with high rather than universally maximum texture settings. It also provides strong raster and ray-tracing performance for its class.
4K gaming
Both 12GB and 16GB cards can run 4K games, but the settings required vary by title. A 16GB card offers more room for high-resolution textures, demanding ray tracing and future software, while 12GB may require more compromises in heavier workloads.
DLSS and Frame Generation
DLSS can reduce rendering workload and memory pressure in some scenarios, but it does not turn 12GB of physical VRAM into 16GB. Frame Generation changes rendered-frame and latency characteristics; it does not expand the card’s physical memory capacity.
Rank #4
- Chipset: GeForce RTX 4080 Super
- Boost Clock / Memory: 2625 MHz / 23 Gbps
- Video Memory: 16GB GDDR6X
- Memory Interface: 256-bit
- Output: DisplayPort x 2 (v1.4a) / HDMI x 2 (2.1a)
Creator and AI workloads
Large 3D scenes, video projects, local AI models and other professional workloads can have application-specific VRAM requirements. A 16GB card provides more headroom, but it is not automatically sufficient for every AI or professional task. Check the software’s documented requirements and the size of the data or model being used.
Custom RTX 40 SUPER cards
Board partners including ASUS, Colorful, Gainward, GALAX, GIGABYTE, INNO3D, KFA2, MSI, Palit, PNY and ZOTAC produced custom SUPER cards. A partner card can differ from NVIDIA’s reference design in several ways:
- Factory-overclocked core or memory speed
- Cooling system and fan arrangement
- BIOS power limits
- PCB design and power connector implementation
- Card length, height and slot thickness
- Display outputs, warranty and support
Those differences do not normally change the GPU class’s official VRAM capacity. An “OC” suffix usually indicates a factory overclock, not additional memory. Retail names such as “12G”, “16G”, “Gaming X”, “Windforce”, “Trinity” and “Founders Edition” should be checked against the exact product specification.
Before buying, verify the individual card’s dimensions, slot thickness, recommended power supply, connector requirements and warranty terms. Memory configuration alone cannot establish whether a card will fit or work properly in a particular system.
How the SUPER cards compare with alternatives
| Comparison | Memory takeaway |
|---|---|
| RTX 4070 SUPER vs RTX 4070 | Both are 12GB-class cards with a 192-bit bus, but the SUPER is a more capable GPU refresh. |
| RTX 4070 Ti SUPER vs RTX 4070 Ti | The SUPER moves from 12GB/192-bit to 16GB/256-bit, making it the clearest memory upgrade. |
| RTX 4080 SUPER vs RTX 4080 | Both have 16GB on a 256-bit bus; the SUPER has faster 23Gbps memory. |
| RTX 4070 Ti SUPER vs RTX 4080 SUPER | Both have 16GB and a 256-bit bus, but they are different performance and price tiers. |
| RTX 4070 SUPER vs RTX 4060 Ti 16GB | More VRAM does not make the 4060 Ti a faster GPU class. Capacity and rendering performance must be judged separately. |
Which RTX 40 SUPER card should you choose?
- Choose the RTX 4070 SUPER for primarily 1440p gaming, strong performance per dollar and a 12GB capacity that matches many mainstream workloads.
- Choose the RTX 4070 Ti SUPER when 16GB of VRAM and a wider bus are important, especially for 4K textures, ray tracing, mods or longer-term headroom in the upper-midrange.
- Choose the RTX 4080 SUPER for higher-end 4K performance when 16GB is sufficient and the price difference is justified by the rest of the card’s performance.
- For professional or AI workloads, start with the application’s VRAM requirement rather than gaming benchmarks or capacity alone.
Pricing and buying cautions
NVIDIA’s historical US launch MSRPs were $599 for the RTX 4070 SUPER, $799 for the RTX 4070 Ti SUPER and $999 for the RTX 4080 SUPER. These are January 2024 launch figures, not current September 2026 street prices.
Best Value
- Graphics Processing Unit (GPU)/Clock Speed Powered by the NVIDIA GeForce RTX 4080 SUPER graphics processing unit (GPU) with a 2.55 GHz boost clock speed. * On-board Memory 16GB GDDR6X * Interface Compatibility PCI Express 4.0 and earlier PCI Express 3.0. Offers compatibility with a range of systems. * Technologies 10,240 NVIDIA CUDA Cores, 2.55 GHz Boost Clock, 3rd Gen Ray Tracing Cores, 4th Gen Tensor Cores, NVIDIA DLSS, GameReady and NVIDIA Studio Drivers, NVIDIA GeForce Experience, NVIDIA G-SYNC, NVIDIA GPU Boost, GDDR6X Graphics MemoryPCI Express Gen 4 * Microsoft Direct 12 Ultimate, Vulkan RT APIs
The cards are no longer new-launch products, so new, used, refurbished and marketplace availability can vary by country and seller. NVIDIA’s official product directory is useful for specifications, but its shop fields should not be treated as a dependable live-market price feed. Retail listings, including partner-card listings on Newegg, can change and may involve third-party sellers.
For a used card, check the exact model and VRAM capacity, seller reputation, return window, warranty transferability, mining or heavy-use history, fan condition, physical damage, modifications, repasting and power-connector condition. Do not use a launch MSRP or a stale out-of-stock listing as evidence of a current deal.
Frequently asked questions
Is the RTX 4070 SUPER a 16GB card?
No. The RTX 4070 SUPER has 12GB of GDDR6X memory on a 192-bit bus.
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1Scan for outdated or missing drivers - takes under a minute2Repair Windows errors before they cause bigger problems3Fix the driver behind crashes, sound loss and screen glitchesDoes the RTX 4070 Ti SUPER have more VRAM than the RTX 4070 Ti?
Yes. It increases capacity from 12GB to 16GB and widens the bus from 192-bit to 256-bit.
Is the RTX 4080 SUPER a 20GB or 24GB card?
No. It has 16GB of GDDR6X memory, the same capacity as the original RTX 4080.
Are there 24GB RTX 40 SUPER cards?
No official 24GB desktop RTX 40 SUPER model was announced by NVIDIA.
Do all RTX 4070 cards use GDDR6X?
No. NVIDIA lists the non-SUPER RTX 4070 with either GDDR6 or GDDR6X. The RTX 4070 SUPER is listed with GDDR6X.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
