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NVIDIA GeForce RTX 4090 Ti

NVIDIA GeForce RTX 4090 Ti: Power of a New Generation for Gamers and Professionals

April 2025

1. Architecture and Key Features

Ada Lovelace Next-Gen Architecture

The RTX 4090 Ti is built on the enhanced Ada Lovelace Next-Gen architecture, which is the evolution of the previous generation. The chips are manufactured using TSMC's 4nm process technology, which has increased transistor density by 20% compared to the RTX 4090. This results in improved performance with lower power consumption per watt.

Unique Technologies

- 4th Generation RTX Accelerators: Ray tracing has become even more realistic thanks to improved algorithms and hardware optimization. In games like Cyberpunk 2077: Phantom Liberty, the RTX 4090 Ti demonstrates a 35% increase in FPS with active RT compared to the RTX 4090.

- DLSS 4.0: Neural network upscaling now supports resolution up to 8K with minimal loss in detail. In Performance mode, the FPS gain reaches 120% at 4K.

- Support for FidelityFX Super Resolution 3.0: Although FSR is an AMD technology, NVIDIA has added compatibility for user flexibility.

2. Memory: Speed and Volume

24GB GDDR6X with a 384-bit Bus

The graphics card is equipped with 24GHz GDDR6X memory, providing a bandwidth of 1.1 TB/s — 15% more than the RTX 4090. This amount and speed are critical for rendering complex scenes in 8K and working with neural network models.

Impact on Gaming

In Alan Wake 2 at 4K with maximum settings, the RTX 4090 Ti uses up to 18GB of video memory, preventing stuttering even in the most demanding scenes. For professional tasks, such as rendering in Blender, 24GB allows working with 16K textures without overload.

3. Gaming Performance

Average FPS in Popular Titles

- Cyberpunk 2077 (4K, RT Ultra, DLSS 4 Balanced): 98 FPS.

- Starfield: Colony Wars (4K, Ultra): 120 FPS.

- Horizon Forbidden West PC Edition (1440p, RT On): 144 FPS.

Resolution Support

- 1080p: Excessive for most games (FPS > 240), ideal for esports.

- 1440p: A balance between quality and performance.

- 4K/8K: The best choice for single-player gaming with maximum immersion.

Ray Tracing

Activating RT reduces FPS by 20-30%, but DLSS 4.0 compensates for the losses. For instance, in The Witcher 4 with RT Ultra, the card delivers a stable 78 FPS at 4K.

4. Professional Tasks

CUDA and OpenCL

14496 CUDA cores (10% more than the RTX 4090) accelerate rendering in Autodesk Maya by 25%. OpenCL 3.0 support makes the card versatile for scientific calculations, such as in MATLAB or ANSYS.

Video Editing

In DaVinci Resolve, rendering an 8K project takes 18% less time due to new AI filters and memory optimization.

5. Power Consumption and Heat Dissipation

TDP 520W

The RTX 4090 Ti requires a powerful cooling system. Recommended:

- Liquid Cooling System (LCS): For example, the NZXT Kraken X63 for hybrid models.

- Airflow cases: Lian Li Lancool III or Fractal Design Torrent.

Ventilation Tips

- At least 3 120mm fans for intake.

- Core temperature under load: 68-72°C (LCS) vs. 78-82°C (air cooling).

6. Comparison with Competitors

AMD Radeon RX 8900 XTX

- Pros: Price ($1499 vs. $2199 for RTX 4090 Ti), supports FSR 4.0.

- Cons: 20% weaker in RT, 16GB memory.

NVIDIA RTX 4090

- Suitable for those who do not need the maximum: RTX 4090 Ti is only 15-25% faster but $500 more expensive.

7. Practical Tips

Power Supply

- Minimum 1000W (recommended 1200W with 80+ Platinum certification).

- Best models: Corsair AX1200i, Seasonic PRIME TX-1300.

Compatibility

- PCIe 5.0 is essential for full performance.

- Drivers: Update through GeForce Experience — optimization for Star Wars: Eclipse was released in April 2025.

8. Pros and Cons

Pros

- World’s best performance in 4K/8K.

- Supports DLSS 4.0 and RTX Remix for modding.

- Ideal for streaming (9th generation NVENC).

Cons

- Price starting at $2199 — not affordable for everyone.

- Requires power supply and case upgrades for most users.

9. Final Conclusion: Who is the RTX 4090 Ti for?

This graphics card is the choice for those unwilling to make compromises:

- Gamers looking to play in 4K/120Hz with ray tracing.

- Professionals in 3D rendering and editing.

- Enthusiasts upgrading their PC every 4-5 years.

The RTX 4090 Ti is not just a graphics card; it's an investment in the future. If your budget allows, it will become the heart of your system for many years to come.

Basic

Label Name

NVIDIA

Platform

Desktop

Model Name

GeForce RTX 4090 Ti

Generation

GeForce 40

Base Clock

2325MHz

Boost Clock

2565MHz

Bus Interface

PCIe 4.0 x16

Transistors

76,300 million

RT Cores

142

Tensor Cores

Tensor Cores are specialized processing units designed specifically for deep learning, providing higher training and inference performance compared to FP32 training. They enable rapid computations in areas such as computer vision, natural language processing, speech recognition, text-to-speech conversion, and personalized recommendations. The two most notable applications of Tensor Cores are DLSS (Deep Learning Super Sampling) and AI Denoiser for noise reduction.

568

TMUs

Texture Mapping Units (TMUs) serve as components of the GPU, which are capable of rotating, scaling, and distorting binary images, and then placing them as textures onto any plane of a given 3D model. This process is called texture mapping.

568

Foundry

TSMC

Process Size

5 nm

Architecture

Ada Lovelace

Memory Specifications

Memory Size

24GB

Memory Type

GDDR6X

Memory Bus

The memory bus width refers to the number of bits of data that the video memory can transfer within a single clock cycle. The larger the bus width, the greater the amount of data that can be transmitted instantaneously, making it one of the crucial parameters of video memory. The memory bandwidth is calculated as: Memory Bandwidth = Memory Frequency x Memory Bus Width / 8. Therefore, when the memory frequencies are similar, the memory bus width will determine the size of the memory bandwidth.

384bit

Memory Clock

1500MHz

Bandwidth

Memory bandwidth refers to the data transfer rate between the graphics chip and the video memory. It is measured in bytes per second, and the formula to calculate it is: memory bandwidth = working frequency × memory bus width / 8 bits.

1152 GB/s

Theoretical Performance

Pixel Rate

Pixel fill rate refers to the number of pixels a graphics processing unit (GPU) can render per second, measured in MPixels/s (million pixels per second) or GPixels/s (billion pixels per second). It is the most commonly used metric to evaluate the pixel processing performance of a graphics card.

492.5 GPixel/s

Texture Rate

Texture fill rate refers to the number of texture map elements (texels) that a GPU can map to pixels in a single second.

1457 GTexel/s

FP16 (half)

An important metric for measuring GPU performance is floating-point computing capability. Half-precision floating-point numbers (16-bit) are used for applications like machine learning, where lower precision is acceptable. Single-precision floating-point numbers (32-bit) are used for common multimedia and graphics processing tasks, while double-precision floating-point numbers (64-bit) are required for scientific computing that demands a wide numeric range and high accuracy.

93.24 TFLOPS

FP64 (double)

An important metric for measuring GPU performance is floating-point computing capability. Double-precision floating-point numbers (64-bit) are required for scientific computing that demands a wide numeric range and high accuracy, while single-precision floating-point numbers (32-bit) are used for common multimedia and graphics processing tasks. Half-precision floating-point numbers (16-bit) are used for applications like machine learning, where lower precision is acceptable.

1457 GFLOPS

FP32 (float)

An important metric for measuring GPU performance is floating-point computing capability. Single-precision floating-point numbers (32-bit) are used for common multimedia and graphics processing tasks, while double-precision floating-point numbers (64-bit) are required for scientific computing that demands a wide numeric range and high accuracy. Half-precision floating-point numbers (16-bit) are used for applications like machine learning, where lower precision is acceptable.

91.375 TFLOPS

Miscellaneous

SM Count

Multiple Streaming Processors (SPs), along with other resources, form a Streaming Multiprocessor (SM), which is also referred to as a GPU's major core. These additional resources include components such as warp schedulers, registers, and shared memory. The SM can be considered the heart of the GPU, similar to a CPU core, with registers and shared memory being scarce resources within the SM.

142

Shading Units

The most fundamental processing unit is the Streaming Processor (SP), where specific instructions and tasks are executed. GPUs perform parallel computing, which means multiple SPs work simultaneously to process tasks.

18176

L1 Cache

128 KB (per SM)

L2 Cache

96MB

TDP

600W

Vulkan Version

Vulkan is a cross-platform graphics and compute API by Khronos Group, offering high performance and low CPU overhead. It lets developers control the GPU directly, reduces rendering overhead, and supports multi-threading and multi-core processors.

1.3

OpenCL Version

3.0

OpenGL

4.6

DirectX

12 Ultimate (12_2)

CUDA

8.9

Power Connectors

2x 16-pin

Shader Model

6.7

ROPs

The Raster Operations Pipeline (ROPs) is primarily responsible for handling lighting and reflection calculations in games, as well as managing effects like anti-aliasing (AA), high resolution, smoke, and fire. The more demanding the anti-aliasing and lighting effects in a game, the higher the performance requirements for the ROPs; otherwise, it may result in a sharp drop in frame rate.

192

Suggested PSU

1000W

Benchmarks

FP32 (float)

Score

91.375 TFLOPS

Compared to Other GPU

FP32 (float) / TFLOPS

Instinct MI300X

166.668 +82.4%

RTX TITAN Ada

96.653 +5.8%

GeForce RTX 4090 Ti

91.375

H100 SXM5 80 GB

68.248 -25.3%

B100

60.838 -33.4%