AMD Radeon RX 7800 XT vs NVIDIA GeForce RTX 4090 Mobile

Comparative analysis of AMD Radeon RX 7800 XT and NVIDIA GeForce RTX 4090 Mobile videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory. Benchmark videocards performance analysis: PassMark - G2D Mark, PassMark - G3D Mark, Geekbench - OpenCL, 3DMark Fire Strike - Graphics Score, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).

AMD Radeon RX 7800 XT

NVIDIA GeForce RTX 4090 Mobile

Differences

Reasons to consider the AMD Radeon RX 7800 XT

Around 43% higher boost clock speed: 2430 MHz vs 1695 MHz
Around 13% higher texture fill rate: 583.2 GTexel/s vs 515.3 GTexel/s
Around 22% higher memory clock speed: 2438 MHz, 19.5 Gbps effective vs 2000 MHz, 16 Gbps effective
Around 18% better performance in PassMark - G2D Mark: 1149 vs 977

Specifications (specs)
Boost clock speed	2430 MHz vs 1695 MHz
Texture fill rate	583.2 GTexel/s vs 515.3 GTexel/s
Memory clock speed	2438 MHz, 19.5 Gbps effective vs 2000 MHz, 16 Gbps effective
Benchmarks
PassMark - G2D Mark	1149 vs 977

Reasons to consider the NVIDIA GeForce RTX 4090 Mobile

Videocard is newer: launch date 1 year(s) 5 month(s) later
Around 3% higher core clock speed: 1335 MHz vs 1295 MHz
2.5x more pipelines: 9728 vs 3840
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 4 nm vs 5 nm
Around 75% lower typical power consumption: 150 Watt vs 263 Watt
Around 14% better performance in PassMark - G3D Mark: 27686 vs 24222
Around 28% better performance in Geekbench - OpenCL: 179291 vs 139979
Around 6% better performance in 3DMark Fire Strike - Graphics Score: 21317 vs 20103

Specifications (specs)
Launch date	2023 vs 25 Aug 2023
Core clock speed	1335 MHz vs 1295 MHz
Pipelines	9728 vs 3840
Manufacturing process technology	4 nm vs 5 nm
Thermal Design Power (TDP)	150 Watt vs 263 Watt
Benchmarks
PassMark - G3D Mark	27686 vs 24222
Geekbench - OpenCL	179291 vs 139979
3DMark Fire Strike - Graphics Score	21317 vs 20103

Compare benchmarks

GPU 1: AMD Radeon RX 7800 XT
GPU 2: NVIDIA GeForce RTX 4090 Mobile

PassMark - G2D Mark

GPU 1

GPU 2

1149

977

PassMark - G3D Mark

GPU 1

GPU 2

24222

27686

Geekbench - OpenCL

GPU 1

GPU 2

139979

179291

3DMark Fire Strike - Graphics Score

GPU 1

GPU 2

20103

21317

Name	AMD Radeon RX 7800 XT	NVIDIA GeForce RTX 4090 Mobile
PassMark - G2D Mark	1149	977
PassMark - G3D Mark	24222	27686
Geekbench - OpenCL	139979	179291
3DMark Fire Strike - Graphics Score	20103	21317
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	500.918
CompuBench 1.5 Desktop - T-Rex (Frames/s)	43.482
CompuBench 1.5 Desktop - Video Composition (Frames/s)	530.303
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	2259.753

Compare specifications (specs)

	AMD Radeon RX 7800 XT	NVIDIA GeForce RTX 4090 Mobile
Essentials
Architecture	RDNA 3.0	Ada Lovelace
Code name	Navi 32	AD103
Launch date	25 Aug 2023	2023
Place in performance rating	21	22
Technical info
Boost clock speed	2430 MHz	1695 MHz
Compute units	60
Core clock speed	1295 MHz	1335 MHz
Manufacturing process technology	5 nm	4 nm
Pipelines	3840	9728
Pixel fill rate	233.3 GPixel/s	189.8 GPixel/s
Texture fill rate	583.2 GTexel/s	515.3 GTexel/s
Thermal Design Power (TDP)	263 Watt	150 Watt
Transistor count	28100 million	45900 million
Peak Double Precision (FP64) Performance		515.3 GFLOPS (1:64)
Peak Half Precision (FP16) Performance		32.98 TFLOPS (1:1)
Peak Single Precision (FP32) Performance		32.98 TFLOPS
Video outputs and ports
Display Connectors	1x HDMI 2.1a, 3x DisplayPort 2.1	Portable Device Dependent
Compatibility, dimensions and requirements
Form factor	Dual-slot	IGP
Height	50 mm, 2 inches
Interface	PCIe 4.0 x16	PCIe 4.0 x16
Length	267 mm, 10.5 inches
Recommended system power (PSU)	600 Watt
Supplementary power connectors	2x 8-pin	None
Width	111 mm, 4.4 inches
API support
DirectX	12 Ultimate (12_2)	12 Ultimate (12_2)
OpenCL	2.2	3.0
OpenGL	4.6	4.6
Shader Model	6.7	6.7
Vulkan
Memory
Maximum RAM amount	16 GB	16 GB
Memory bandwidth	624.1 GB/s	512.0 GB/s
Memory bus width	256 bit	256 bit
Memory clock speed	2438 MHz, 19.5 Gbps effective	2000 MHz, 16 Gbps effective
Memory type	GDDR6	GDDR6