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AMD Radeon E9390 PCIe

AMD Radeon E9390 PCIe: Power and Efficiency for Gamers and Professionals

April 2025

1. Architecture and Key Features

RDNA 4: A Breakthrough in Energy Efficiency

The AMD Radeon E9390 is based on the RDNA 4 architecture, manufactured using TSMC's 4nm process. This has allowed a 20% increase in transistor density compared to RDNA 3, while maintaining a moderate TDP. A key feature is the improved Ray Accelerators 2.0, delivering ray tracing with minimal FPS loss.

Technologies for Gamers and Creators

- FidelityFX Super Resolution 3.5: Upscaling to 4K with AI smoothing, increasing FPS by 50-70% in "Quality" mode.

- Hybrid Ray Tracing: Combining traditional rendering with ray tracing for a balance between quality and performance.

- Smart Access Storage: Accelerating texture loading in DirectStorage-compatible games (e.g., Starfield: Odyssey).

2. Memory: Speed and Capacity

GDDR6X with 16 GB and 384-bit Bus

The graphics card is equipped with GDDR6X memory operating at 20 Gbps, providing a bandwidth of 768 GB/s. This amount (16 GB) is ideal for 4K gaming and handling heavy projects in Blender or Unreal Engine 5.

Why is this Important?

- In Cyberpunk 2077: Phantom Liberty (4K, Ultra), the E9390 uses 12-14 GB of memory, avoiding stutters.

- For editing 8K video in DaVinci Resolve, the memory reserve allows for smooth performance without cache overloads.

3. Performance in Games: Numbers and Reality

1080p and 1440p: Maximum Settings

- Call of Duty: Black Ops VI (1440p, Ultra, FSR 3.5 Quality): 142 FPS.

- Assassin’s Creed: Nexus (1080p, Ultra + Hybrid RT): 98 FPS.

4K: Challenge Accepted

- Horizon Forbidden West PC Edition (4K, Ultra, FSR 3.5 Balanced): 68 FPS.

- With full Ray Tracing enabled in Alan Wake 3 (4K, Medium RT), FPS drops to 44, but with FSR 3.5 it rises to 60.

Ray Tracing: Not Without Compromises

Ray Accelerators 2.0 reduce performance loss by 30% compared to RDNA 3, but for comfortable 4K with RT, it's better to enable FSR.

4. Professional Tasks: Not Just Gaming

3D Rendering and AI

- In Blender (Cycles), the E9390 is 15% faster than the NVIDIA RTX 4070 Ti due to optimization for OpenCL.

- For scientific calculations using ROCm 4.5, the card demonstrates 12.4 TFLOPS in FP32.

Video Editing

- Rendering an 8K project in Premiere Pro takes 20% less time than the RTX 4080, thanks to hardware encoding support for AV1.

5. Power Consumption and Thermal Output

TDP 250 W: Not the Most Power-Hungry

A recommended power supply is 650 W (for a system with Ryzen 7 8700X). The card uses 8+6-pin connectors.

Cooling

- The reference model with a triple-fan and vacuum chamber keeps temperatures under 72°C under load.

- For compact cases, it's better to choose custom solutions from Sapphire (Nitro+) or PowerColor (Red Devil).

6. Comparison with Competitors

NVIDIA RTX 4070 Ti Super

- E9390 Pros: +4 GB memory, better scaling in OpenCL, price $649 vs. $799.

- Cons: RTX wins in ray tracing with DLSS 4.0 (+10-15% FPS).

AMD Radeon RX 8800 XT

- The E9390's sibling is difficult to call a competitor: the RX 8800 XT is 8% slower at 4K but cheaper ($599).

7. Practical Advice

Power Supply and Compatibility

- Minimum of 650 W (preferably with 80+ Gold certification).

- PCIe 5.0 x16 is essential for fully utilizing the GDDR6X memory.

Drivers and Optimization

- The Adrenalin Edition 2025 automatically adjusts FSR for the monitor. For professionals, the Pro Driver is recommended for improved OpenCL stability.

8. Pros and Cons

✅ Strengths

- Ideal for 1440p/4K gaming with FSR.

- Best-in-class support for OpenCL.

- Competitive pricing ($649).

❌ Weaknesses

- Ray tracing requires compromises.

- Reference cooling is noisy at 45 dB.

9. Final Conclusion: Who is the E9390 for?

Gamers looking to play in 4K without upgrading for the next 3-4 years will appreciate the balance of price and power. Professionals working with rendering and editing will benefit from 16 GB of memory and OpenCL optimization.

Alternatives?

- If maximum RTX is needed, consider the RTX 4070 Ti Super.

- For pure gaming at 1440p, the RX 8800 XT will suffice.

The AMD Radeon E9390 is a versatile choice, where every dollar spent translates into performance "here and now."

Basic

Label Name

AMD

Platform

Mobile

Launch Date

October 2019

Model Name

Radeon E9390 PCIe

Generation

Embedded

Base Clock

713MHz

Boost Clock

1089MHz

Bus Interface

PCIe 3.0 x16

Transistors

5,700 million

Compute Units

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.

112

Foundry

GlobalFoundries

Process Size

14 nm

Architecture

GCN 4.0

Memory Specifications

Memory Size

8GB

Memory Type

GDDR5

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.

256bit

Memory Clock

1250MHz

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.

160.0 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.

34.85 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.

122.0 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.

3.903 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.

243.9 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.

3.981 TFLOPS

Miscellaneous

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.

1792

L1 Cache

16 KB (per CU)

L2 Cache

2MB

TDP

75W

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.

1.2

OpenCL Version

2.1

OpenGL

4.6

DirectX

12 (12_0)

Power Connectors

None

Shader Model

6.4

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.

Benchmarks

FP32 (float)

Score

3.981 TFLOPS

Compared to Other GPU

FP32 (float) / TFLOPS

Radeon RX 5300M

4.15 +4.2%

GeForce GTX 780

4.073 +2.3%

Radeon E9390 PCIe

3.981

GeForce GTX 970

3.842 -3.5%

Radeon RX 6300M

3.612 -9.3%

AMD Radeon E9390 PCIe