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AMD - Radeon RX 7900 XT vs AMD - Radeon RX 7900 XTX

Last updated · How Mars Score works
Radeon RX 7900 XTAMDRENDER
Probe A
AMD
Radeon RX 7900 XT
66.7/ 100C
Benchmarks68· 40%
Core61· 30%
Memory72· 20%
Power & Form· 10%
Radeon RX 7900 XTXAMDRENDER
Probe B
AMD
Radeon RX 7900 XTX
71.0/ 100B
Benchmarks72· 40%
Core64· 30%
Memory80· 20%
Power & Form· 10%
Quick verdict

Between the Radeon RX 7900 XT and Radeon RX 7900 XTX, the Radeon RX 7900 XT comes out ahead in tdp, while the Radeon RX 7900 XTX wins on vram and memory bus. Overall, the Radeon RX 7900 XT scores 66.7 and the Radeon RX 7900 XTX scores 71 on our Mars Score.

Buying advice

Which should you buy?

The Radeon RX 7900 XTX edges ahead on the Mars Score (66.7 vs 71), but the 4.3-point gap is small enough that the right pick comes down to which spec advantages matter to you.

Pick the Radeon RX 7900 XT if you care most about tdp. The biggest gaps in its favor are tdp.

Pick the Radeon RX 7900 XTX if you push the hardware — gaming, on-device AI, heavy multitasking — and the extra compute headroom is worth the trade-offs. Its strongest claims are vram, memory bus, cuda / stream cores, among others.

Both ship with comparable dlss, so those specs don't separate the two — focus on the differences below.

Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.

Why AMD - Radeon RX 7900 XT wins

  • TDP — 40.00 W less. 315 vs 355.

Why AMD - Radeon RX 7900 XTX wins

  • VRAM — 20.00% more. 24 GB vs 20 GB.
  • Memory bus — 20.00% more. 384 bit vs 320 bit.
  • CUDA / Stream cores — 14.29% more. 6144 vs 5376.
  • Ray tracing cores — 14.29% more. 96 vs 84.
  • 3DMark Time Spy — 11.70% more. 21000 vs 18800.
  • Boost clock — 4.17% more. 2500 MHz vs 2400 MHz.
Full readout

Spec comparison

Core

SpecAMD - Radeon RX 7900 XTAMD - Radeon RX 7900 XTX
ChipsetNavi 31Navi 31
Base clock1500 MHz1900 MHzlead
Boost clock2400 MHz2500 MHzlead
CUDA / Stream cores53766144lead
Ray tracing cores8496lead

Memory

SpecAMD - Radeon RX 7900 XTAMD - Radeon RX 7900 XTX
VRAM20 GB24 GBlead
VRAM typeGDDR6GDDR6
Memory bus320 bit384 bitlead

Power & Form

SpecAMD - Radeon RX 7900 XTAMD - Radeon RX 7900 XTX
TDP315 Wlead355 W
Recommended PSU750 Wlead800 W
Length276 mmlead287 mm
Slot size2.5-slot2.5-slot

Benchmarks

SpecAMD - Radeon RX 7900 XTAMD - Radeon RX 7900 XTX
3DMark Time Spy1880021000lead
DLSSfalsefalse
FSRtruetrue
Reader questions

Frequently asked

Which has more VRAM, Radeon RX 7900 XT or Radeon RX 7900 XTX?+

Radeon RX 7900 XTX ships with 24GB GDDR6 vs 20GB.

Which scores higher in 3DMark Time Spy, Radeon RX 7900 XT or Radeon RX 7900 XTX?+

Radeon RX 7900 XTX scores 21000 vs 18800.

Which draws less power, Radeon RX 7900 XT or Radeon RX 7900 XTX?+

Radeon RX 7900 XT draws 315W TDP vs 355W.

Drill down

Spec-level deep dives

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