Radeon RX 7800 XT vs Radeon RX 7900 XT: specs and benchmark comparison
Short verdict
AMD Radeon RX 7900 XT leads in every scenario with comparable benchmarks: rendering and compute. This does not imply an advantage in tasks without benchmarks.
Compare with AIRendering and compute
B +53%AMD Radeon RX 7900 XT leads in this scenario (up to 53% in comparable benchmarks).
No comparable benchmarks yet: gaming: rasterization, gaming: ray tracing, power efficiency.
Advantages
Only measured and rated values: a noticeable benchmark gap and specs where more is better.
Where Radeon RX 7800 XT is better2
Board power 52 W lower263 W (TBP) vs 315 W (TBP)
Launch price $400 lower$499 vs $899
Where Radeon RX 7900 XT is better6
Blender Benchmark 4.5.0 47.2% faster3,626 samples/min vs 2,463 samples/min
Compute units 24 more84 CU vs 60 CU
Shader units 1,536 more5,376 (Stream processors) vs 3,840 (Stream processors)
Video memory 4 GB more20 GB vs 16 GB
Memory speed 0.5 Gbps more20 Gbps vs 19.5 Gbps
Memory bandwidth 176 GB/s more800 GB/s vs 624 GB/s
Benchmarks
Results are compared within one benchmark, one version and the same conditions.
- B ahead by 47.2%
Blender Benchmark 4.5.0
GPU, sum of scenes monster + junkshop + classroom (OptiX / HIP / oneAPI / Metal) · samples/min, higher is better
Radeon RX 7800 XT2,462.8 samples/minRadeon RX 7900 XT3,626.2 samples/minPosition among tested models (13, HIP)
A · 2,463B · 3,62602,0004,0006,000Each dot is one model’s median in this benchmark. The scale starts at zero, samples/min. AMD Radeon RX 7900 XT is ahead by 47.2% in this benchmark.
About the measurement and source
- A · AMD Radeon RX 7800 XT
2,462.8 samples/min · community measurement, sample 111 · November 14, 2026
Blender Open Data (Blender Foundation)
Median of 111 submissions (1 outliers excluded), interquartile range 2379.51–2532.47; submissions 2025-07-18 to 2026-04-08; HIP backend. Snapshot 2026-11-14.
- B · AMD Radeon RX 7900 XT
3,626.2 samples/min · community measurement, sample 121 · November 14, 2026
Blender Open Data (Blender Foundation)
Median of 121 submissions (7 outliers excluded), interquartile range 3528.56–3732.74; submissions 2025-07-20 to 2026-11-07; HIP backend. Snapshot 2026-11-14.
difference = |A − B| ÷ the smaller value × 100%. The 5% noticeable threshold is a UX heuristic, not statistical significance.
Cycles render in Blender Benchmark. Median of the sum of samples per minute over three scenes after removing outliers.
Other comparable benchmarks (7)
| Benchmark | A | B | Difference |
|---|---|---|---|
| Blender Benchmark 4.2.0GPU, sum of scenes monster + junkshop + classroom (OptiX / HIP / oneAPI / Metal) | 2,436.1 | 3,616.3 | B +48.4% |
| Blender Benchmark 5.2.0GPU, sum of scenes monster + junkshop + classroom (OptiX / HIP / oneAPI / Metal) | 2,841.9 | 4,151.6 | B +46.1% |
| Blender Benchmark 3.6.0GPU, sum of scenes monster + junkshop + classroom (OptiX / HIP / oneAPI / Metal) | 2,422.3 | 3,545.3 | B +46.4% |
| Blender Benchmark 4.0.0GPU, sum of scenes monster + junkshop + classroom (OptiX / HIP / oneAPI / Metal) | 2,264.5 | 3,465.4 | B +53% |
| Blender Benchmark 4.1.0GPU, sum of scenes monster + junkshop + classroom (OptiX / HIP / oneAPI / Metal) | 2,413 | 3,615.6 | B +49.8% |
| Blender Benchmark 4.3.0GPU, sum of scenes monster + junkshop + classroom (OptiX / HIP / oneAPI / Metal) | 2,438.9 | 3,616.6 | B +48.3% |
| Blender Benchmark 4.4.0GPU, sum of scenes monster + junkshop + classroom (OptiX / HIP / oneAPI / Metal) | 2,454.8 | 3,680.1 | B +49.9% |
Each benchmark version has its own scale: numbers are compared only within a row.
Reference results (6)
| Benchmark | A | B | Difference |
|---|---|---|---|
| Blender Benchmark 5.1.1GPU, sum of scenes monster + junkshop + classroom (OptiX / HIP / oneAPI / Metal) | 2,876.3 | 3,748.3 | reference |
| Blender Benchmark 3.4.0GPU, sum of scenes monster + junkshop + classroom (OptiX / HIP / oneAPI / Metal) | 2,358.7 | 3,179.2 | reference |
| Blender Benchmark 3.5.0GPU, sum of scenes monster + junkshop + classroom (OptiX / HIP / oneAPI / Metal) | 2,343.9 | 3,084.9 | reference |
| Blender Benchmark 5.0.0GPU, sum of scenes monster + junkshop + classroom (OptiX / HIP / oneAPI / Metal) | 2,210.8 | 3,422.9 | reference |
| Blender Benchmark 5.1.0GPU, sum of scenes monster + junkshop + classroom (OptiX / HIP / oneAPI / Metal) | 2,870.9 | 3,747.9 | reference |
| Blender Benchmark 5.3.0GPU, sum of scenes monster + junkshop + classroom (OptiX / HIP / oneAPI / Metal) | — | 4,030.3 | no pair |
Each benchmark version has its own scale: numbers are compared only within a row.
Specifications
| Specification | A · Radeon RX 7800 XT | B · Radeon RX 7900 XT | Difference |
|---|---|---|---|
| Chip | |||
| Architecture | RDNA 3 | RDNA 3 | equal |
| Compute unitsSM (NVIDIA), CU (AMD) and Xe-core (Intel) are different units and are not compared numerically across vendors. | 60 CU | 84 CU | B: 24 more |
| Shader unitsShader unit counts are comparable only within one architecture. | 3,840 (Stream processors) | 5,376 (Stream processors) | B: 1,536 more |
| Clocks | |||
| Game Clock (AMD) | 2,124 MHz | 2,000 MHz | A: 124 MHz more |
| Boost clockClocks of different architectures do not reflect performance directly. For laptop chips, the clock depends on the laptop’s power limit. | 2,430 MHz | 2,400 MHz | A: 30 MHz more |
| Memory | |||
| Video memory | 16 GB | 20 GB | B: 4 GB more |
| Memory type | GDDR6 | GDDR6 | equal |
| Memory bus | 256 bit | no data | no data for B |
| Memory speed | 19.5 Gbps | 20 Gbps | B: 0.5 Gbps more |
| Memory bandwidthExcludes cache (Infinity Cache / L2), which affects effective bandwidth differently. | 624 GB/s | 800 GB/s | B: 176 GB/s more |
| Power and dimensions | |||
| Board powerTGP (NVIDIA) and TBP (AMD/Intel) are calculated differently; higher is not better. For laptops, the chip maker sets the range and the laptop maker picks the value, so the same chip behaves differently in different laptops. | 263 W (TBP) | 315 W (TBP) | B: 52 W higher |
| Recommended PSU | 700 W | 750 W | B: 50 W higher |
| Length (reference / Founders Edition)Partner cards have different dimensions; check the specific SKU. | no data | 276 mm | no data for A |
| Thickness (slots) | no data | 2.5 | no data for A |
| Power connectors (reference) | no data | 2x 8-pin (reference card) | no data for A |
Chip
Architecture
ARDNA 3
BRDNA 3
equalCompute units
A60 CU
B84 CU
B: 24 moreSM (NVIDIA), CU (AMD) and Xe-core (Intel) are different units and are not compared numerically across vendors.
Shader units
A3,840 (Stream processors)
B5,376 (Stream processors)
B: 1,536 moreShader unit counts are comparable only within one architecture.
Clocks
Game Clock (AMD)
A2,124 MHz
B2,000 MHz
A: 124 MHz moreBoost clock
A2,430 MHz
B2,400 MHz
A: 30 MHz moreClocks of different architectures do not reflect performance directly. For laptop chips, the clock depends on the laptop’s power limit.
Memory
Video memory
A16 GB
B20 GB
B: 4 GB moreMemory type
AGDDR6
BGDDR6
equalMemory bus
A256 bit
Bno data
no data for BMemory speed
A19.5 Gbps
B20 Gbps
B: 0.5 Gbps moreMemory bandwidth
A624 GB/s
B800 GB/s
B: 176 GB/s moreExcludes cache (Infinity Cache / L2), which affects effective bandwidth differently.
Power and dimensions
Board power
A263 W (TBP)
B315 W (TBP)
B: 52 W higherTGP (NVIDIA) and TBP (AMD/Intel) are calculated differently; higher is not better. For laptops, the chip maker sets the range and the laptop maker picks the value, so the same chip behaves differently in different laptops.
Recommended PSU
A700 W
B750 W
B: 50 W higherLength (reference / Founders Edition)
Ano data
B276 mm
no data for APartner cards have different dimensions; check the specific SKU.
Thickness (slots)
Ano data
B2.5
no data for APower connectors (reference)
Ano data
B2x 8-pin (reference card)
no data for A
“More” does not always mean “better”: higher power draw or size is a system requirement, not an advantage (such bars are dimmed).
Compare with AI
An AI model reviews the specs and benchmarks of this pair and gives a plain-language verdict on who each model suits.
Questions and answers
How much video memory do AMD Radeon RX 7800 XT and AMD Radeon RX 7900 XT have?
AMD Radeon RX 7800 XT: 16 GB GDDR6, 256-bit bus. AMD Radeon RX 7900 XT: 20 GB GDDR6.
What power supply does the manufacturer recommend?
For AMD Radeon RX 7800 XT, 700 W or more; for AMD Radeon RX 7900 XT, 750 W or more. This is a recommendation for a typical system; also check the power connectors of the specific card model.
Which is faster: AMD Radeon RX 7800 XT or AMD Radeon RX 7900 XT?
AMD Radeon RX 7900 XT leads in every scenario with comparable benchmarks: rendering and compute. This does not imply an advantage in tasks without benchmarks.
See also
Data sources (3)
- AMD — specifications of AMD Radeon RX 7800 XT, specifications of AMD Radeon RX 7900 XTchecked November 7, 2026
- Blender Open Data (Blender Foundation) — benchmark Blender Benchmark 4.2.0, benchmark Blender Benchmark 4.5.0, benchmark Blender Benchmark 5.1.1, benchmark Blender Benchmark 5.2.0, benchmark Blender Benchmark 3.4.0, benchmark Blender Benchmark 3.5.0, benchmark Blender Benchmark 3.6.0, benchmark Blender Benchmark 4.0.0, benchmark Blender Benchmark 4.1.0, benchmark Blender Benchmark 4.3.0, benchmark Blender Benchmark 4.4.0, benchmark Blender Benchmark 5.0.0, benchmark Blender Benchmark 5.1.0, benchmark Blender Benchmark 5.3.0checked November 14, 2026
- Wikipedia (English) — release date and launch pricechecked November 14, 2026
How we compare: methodology. Where the data comes from: sources.