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GeForce RTX 4090 vs AMD Radeon RX 7900 XTX

Select up to four GPU Wiki entries to compare matching specifications row by row. The comparison uses the site database and keeps generation-specific specs visibly separate.

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Key Differences

  • GeForce RTX 4090 has more Memory bandwidth (1,010 GB/s vs 960.0 GB/s).
  • Boost clock: GeForce RTX 4090 has 2,520 MHz; AMD Radeon RX 7900 XTX has 2500 MHz.
  • TDP / TBP / board power: GeForce RTX 4090 has 450 W; AMD Radeon RX 7900 XTX has 355 W.
  • Architecture: GeForce RTX 4090 has Ada Lovelace; AMD Radeon RX 7900 XTX has RDNA 3.
  • Launch date: GeForce RTX 4090 has 2022-09-20; AMD Radeon RX 7900 XTX has 2022-12-13.
  • GeForce RTX 4090 has more RT units (128 vs 96).
Row order:
Muted cells indicate unavailable, not applicable, or not directly comparable specifications.
Spec GeForce RTX 4090 AMD Radeon RX 7900 XTX AMD
Overview
Product name NVIDIA GeForce RTX 4090 AMD Radeon RX 7900 XTX
Architecture Ada Lovelace RDNA 3
Generation / family GeForce RTX 40 Series Radeon RX 7000 Series
GPU codename AD102 Navi 31 XTX
Launch date 2022-09-20 2022-12-13
Launch MSRP Unknown 999
Market segment Desktop, Flagship in GeForce RTX 40 Series Desktop, Enthusiast
Board type / entry type Reference GPU Reference GPU
GPU
Process node TSMC 5 nm 5 nm GCD / 6 nm MCD
Die size 609 mm² 305 mm² GCD + 6×37.5 mm² MCD
Transistor count 76.3 billion 57700 million
GPU chip AD102 Navi 31
SM / multiprocessor count 128 96
Shader processors Raw counts do not scale linearly across architectures or generations. 16384 CUDA Cores 6144 Stream Processors
AI units Dedicated AI silicon differs significantly across vendors. Not directly comparable. 512 Tensor Cores Unknown AI Accelerators
RT units Dedicated RT unit counts do not scale the same way across vendors. 128 RT Cores 96 Ray Accelerators
ROPs 176 192
TMUs 512 384
Clocks
Base / Core clock 2,235 MHz 1855 MHz
Boost clock 2,520 MHz 2500 MHz
Memory clock 1,313 MHz 2500 MHz
Memory
Memory size 24 GB 24 GB
Memory type GDDR6X GDDR6
Memory bus width 384-bit 384-bit
Memory bandwidth 1,010 GB/s 960.0 GB/s
Bus / Interface
Bus interface PCIe 4.0 x16 PCIe 4.0 x16
AGP / PCI / PCIe distinction PCIe PCIe
Power
TDP / TBP / board power 450 W 355 W
Recommended PSU 850 W 750 W
Power connectors 1x 16-pin 3x 8-pin
Slot width Triple-slot, 304 mm length, 61 mm width Dual-slot
Display / Media
Display outputs 1x HDMI 2.1, 3x DisplayPort 1.4a 1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C
Features
DirectX support DirectX 12.2 DirectX 12 Ultimate
OpenGL support OpenGL 4.6 OpenGL 4.6
Vulkan support Vulkan 1.4 Vulkan 1.3
CUDA support 8.9 Not applicable
Shader Model 6.8 6.8
Ray tracing support Hardware RT units present Hardware RT units present
Performance / Benchmarks
FP32 throughput 82.58 TFLOPS 61.44 TFLOPS
FP16 throughput 82.58 TFLOPS 122.8 TFLOPS

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