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AMD Radeon RX 7900 XTX vs GeForce RTX 4090

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

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