AMD Radeon 780M vs AMD Radeon RX 7800 XT
GPU Comparison Result
Below are the results of a comparison of AMD Radeon 780M and AMD Radeon RX 7800 XT video cards based on key performance characteristics, as well as power consumption and much more.
Advantages
- Higher Boost Clock: 2900MHz (2900MHz vs 2430MHz)
- Larger Memory Size: 16GB (System Shared vs 16GB)
- Higher Bandwidth: 624.1 GB/s (System Dependent vs 624.1 GB/s)
- More Shading Units: 3840 (768 vs 3840)
- Newer Launch Date: August 2023 (January 2023 vs August 2023)
Basic
AMD
Label Name
AMD
January 2023
Launch Date
August 2023
Integrated
Platform
Desktop
Radeon 780M
Model Name
Radeon RX 7800 XT
Navi III IGP
Generation
Navi III
1500MHz
Base Clock
1295MHz
2900MHz
Boost Clock
2430MHz
PCIe 4.0 x8
Bus Interface
PCIe 4.0 x16
25,390 million
Transistors
28,100 million
12
RT Cores
60
12
Compute Units
60
48
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.
240
TSMC
Foundry
TSMC
4 nm
Process Size
5 nm
RDNA 3.0
Architecture
RDNA 3.0
Memory Specifications
System Shared
Memory Size
16GB
System Shared
Memory Type
GDDR6
System Shared
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
SystemShared
Memory Clock
2438MHz
System Dependent
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.
624.1 GB/s
Theoretical Performance
92.80 GPixel/s
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.
233.3 GPixel/s
139.2 GTexel/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.
583.2 GTexel/s
17.82 TFLOPS
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.
74.65 TFLOPS
556.8 GFLOPS
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.
1166 GFLOPS
8.731
TFLOPS
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.
36.574
TFLOPS
Miscellaneous
768
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.
3840
128 KB per Array
L1 Cache
128 KB per Array
2MB
L2 Cache
4MB
15W
TDP
263W
1.3
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
2.1
OpenCL Version
2.2
4.6
OpenGL
4.6
12 Ultimate (12_2)
DirectX
12 Ultimate (12_2)
None
Power Connectors
2x 8-pin
6.7
Shader Model
6.7
32
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.
96
-
Suggested PSU
700W
Benchmarks
FP32 (float)
/ TFLOPS
Radeon 780M
8.731
Radeon RX 7800 XT
36.574
+319%
3DMark Time Spy
Radeon 780M
2755
Radeon RX 7800 XT
20345
+638%
