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AMD - Radeon RX 7900 XTX vs AMD - Radeon RX 9070 XT

Last updated · How Mars Score works
Radeon RX 7900 XTXAMDRENDER
Probe A
AMD
Radeon RX 7900 XTX
71.0/ 100B
Benchmarks72· 40%
Core64· 30%
Memory80· 20%
Power & Form· 10%
Radeon RX 9070 XTAMDRENDER
Probe B
AMD
Radeon RX 9070 XT
67.3/ 100C
Benchmarks69· 40%
Core68· 30%
Memory64· 20%
Power & Form· 10%
Quick verdict

Between the Radeon RX 7900 XTX and Radeon RX 9070 XT, the Radeon RX 7900 XTX comes out ahead in vram and cuda / stream cores, while the Radeon RX 9070 XT wins on tdp and boost clock. Overall, the Radeon RX 7900 XTX scores 71 and the Radeon RX 9070 XT scores 67.3 on our Mars Score.

Buying advice

Which should you buy?

The Radeon RX 7900 XTX edges ahead on the Mars Score (71 vs 67.3), but the 3.7-point gap is small enough that the right pick comes down to which spec advantages matter to you.

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. The biggest gaps in its favor are vram, cuda / stream cores, memory bus, among others.

Pick the Radeon RX 9070 XT if you care most about tdp and boost clock. Its strongest claims are tdp, boost clock.

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 XTX wins

  • VRAM — 50.00% more. 24 GB vs 16 GB.
  • CUDA / Stream cores — 50.00% more. 6144 vs 4096.
  • Memory bus — 50.00% more. 384 bit vs 256 bit.
  • Ray tracing cores — 50.00% more. 96 vs 64.
  • 3DMark Time Spy — 9.38% more. 21000 vs 19200.

Why AMD - Radeon RX 9070 XT wins

  • TDP — 51.00 W less. 304 vs 355.
  • Boost clock — 18.80% more. 2970 MHz vs 2500 MHz.
Full readout

Spec comparison

Core

SpecAMD - Radeon RX 7900 XTXAMD - Radeon RX 9070 XT
ChipsetNavi 31Navi 48
Base clock1900 MHz2400 MHzlead
Boost clock2500 MHz2970 MHzlead
CUDA / Stream cores6144lead4096
Ray tracing cores96lead64

Memory

SpecAMD - Radeon RX 7900 XTXAMD - Radeon RX 9070 XT
VRAM24 GBlead16 GB
VRAM typeGDDR6GDDR6
Memory bus384 bitlead256 bit

Power & Form

SpecAMD - Radeon RX 7900 XTXAMD - Radeon RX 9070 XT
TDP355 W304 Wlead
Recommended PSU800 W750 Wlead
Length287 mm287 mm
Slot size2.5-slot2.5-slot

Benchmarks

SpecAMD - Radeon RX 7900 XTXAMD - Radeon RX 9070 XT
3DMark Time Spy21000lead19200
DLSSfalsefalse
FSRtruetrue
Reader questions

Frequently asked

Which has more VRAM, Radeon RX 7900 XTX or Radeon RX 9070 XT?+

Radeon RX 7900 XTX ships with 24GB GDDR6 vs 16GB.

Which scores higher in 3DMark Time Spy, Radeon RX 7900 XTX or Radeon RX 9070 XT?+

Radeon RX 7900 XTX scores 21000 vs 19200.

Which draws less power, Radeon RX 7900 XTX or Radeon RX 9070 XT?+

Radeon RX 9070 XT draws 304W TDP vs 355W.

Drill down

Spec-level deep dives

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