AMD Radeon RX 6850M XT vs NVIDIA GeForce RTX 5080 Comparison

The database tells a one-sided story here: the NVIDIA GeForce RTX 5080 wins every head-to-head benchmark against the AMD Radeon RX 6850M XT, by margins ranging from roughly 61 percent to nearly 74 percent. That gap is not a rounding error or a driver quirk; it reflects two GPUs built on different eras of silicon, for different power envelopes, with the 6850M XT now end-of-life and the 5080 in active production. The only arena where the AMD part retains any footing is qualitative: it is a mobile-integrated part needing no power connectors and no dedicated slot, whereas the 5080 is a full dual-slot desktop card with substantial power demands.

Where Each One Wins

Strictly on recorded benchmark wins, the answer is simple: the RTX 5080 wins everything the two share. The head-to-head data covers three tests, 3DMark Steel Nomad (DX12), Geekbench OpenCL, and Geekbench Vulkan, and NVIDIA takes all three. The 6850M XT records zero head-to-head victories.

Where the Radeon does hold an advantage is in format and efficiency of design intent. It is an IGP-class mobile part with no power connectors, a 165 W TDP, and portable-device-dependent display output. The 5080, by contrast, carries a 360 W TDP, requires a single 16-pin connector, occupies a dual-slot footprint measuring 304 mm long, 137 mm tall, and 40 mm wide, and calls for a 750 W system power supply. For anyone constrained to a mobile platform, the 6850M XT is the only one of the two that physically fits the use case. That is a placement win, not a performance win, and the data is careful to keep the distinction clear.

There is also a curious percentile wrinkle worth noting: the 6850M XT sits in the 92nd percentile versus all GPUs in the database, while the 5080 sits at the 87th. That inversion exists because the percentile fields compare each card against the full population rather than against each other, and the two are scored on different benchmark mixes. On direct comparison, the ranking is unambiguous.

Architecture Differences

The generational gap is wide. The 6850M XT is built on the Navi 22 chip using AMD's RDNA 2.0 architecture on TSMC's 7 nm process, with 17,200 million transistors packed into a 335 mm² die, yielding a density of 51.3M transistors per mm². The RTX 5080 uses the GB203 chip on NVIDIA's Blackwell 2.0 architecture, manufactured on TSMC 5 nm, with 45,600 million transistors across a 378 mm² die and a much higher density of 120.6M per mm². More than double the transistor budget on a denser node is the foundation of the performance difference.

The execution-resource counts follow the same pattern. The Radeon offers 2560 shading units, 160 TMUs, 64 ROPs, and 40 RT cores, with no tensor cores listed. The GeForce provides 10752 shading units, 336 TMUs, 112 ROPs, 84 RT cores, and 336 tensor cores. The tensor-core advantage matters for any workload that leans on AI-accelerated features, since the 6850M XT has no equivalent hardware recorded in the database.

Memory is another clear split. The AMD card pairs 12 GB of GDDR6 on a 192-bit bus with 432.0 GB/s of bandwidth, running at an effective 18 Gbps. The NVIDIA card pairs 16 GB of GDDR7 on a 256-bit bus with 960.0 GB/s of bandwidth at an effective 30 Gbps: more capacity, a wider bus, faster memory technology, and more than twice the bandwidth. The bus interface also differs, PCIe 4.0 x16 on the Radeon versus PCIe 5.0 x16 on the GeForce.

Clocks are closer than everything else. The 6850M XT runs a 2321 MHz base, 2463 MHz game clock, and 2581 MHz boost; the 5080 runs a 2295 MHz base and 2617 MHz boost with no game clock recorded. Nearly identical clock speeds paired with vastly different resource counts explains why the outcomes land so heavily on one side.

Feature-wise, the two converge on API support: both report DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The 6850M XT shipped first, dated early January in its launch record, with the 5080 following in late January of its own cycle; the Radeon's line is now succeeded by nothing listed, while the 5080 has a recorded successor, GeForce 60.

Head-to-Head Benchmarks

Three tests pit these cards directly against each other, and the margins are large in every case.

The 3DMark Steel Nomad DX12 test is the most lopsided: the RTX 5080 scores 8637 against the 6850M XT's 2257, a 73.9 percent gap in NVIDIA's favor. A ray-tracing-heavy modern DirectX 12 workload is precisely where the 84 RT cores, 336 tensor cores, and 960 GB/s of GDDR7 bandwidth compound, and the score reflects it.

Geekbench OpenCL shows the same direction at slightly smaller magnitude: 235901 for the 5080 versus 85040 for the Radeon, a 64 percent deficit for AMD. OpenCL compute favors raw throughput and memory bandwidth, and the 5080's 56.28 TFLOPS of FP32 against the 6850M XT's 13.21 TFLOPS, plus the bandwidth disparity, lines up with the result.

Geekbench Vulkan lands at 255450 for NVIDIA versus 99483 for AMD, a 61.1 percent gap. Vulkan is the API where the two cards are nominally on equal footing, both supporting version 1.4, yet the gap remains large, confirming the difference is hardware-side rather than software-side.

Contextualizing against rivals sharpens the picture. The 6850M XT's average benchmark score of 78940 places it within touching distance of the NVIDIA Tesla P100 PCIe 12 GB (79396 average, 0.6 percent ahead of the Radeon), the Tesla P100 PCIe 16 GB (79605, 0.8 percent ahead), and the GeForce RTX 5090 (79842, 1.1 percent ahead), while sitting 1.6 percent ahead of the RTX 5090 D (77712). The 5080's average score of 56083 puts it 0.6 percent ahead of the AMD Radeon 8060S (55757), 0.7 percent ahead of the Radeon RX 6750 GRE 12 GB (55698), and 2.3 percent ahead of the Radeon Pro W5700X (54828), with the Radeon RX 9070 GRE 2.2 percent ahead of it at 57367. The 5080 also posts strong auxiliary results in the database, including a PassMark G3D score of 36565 and a PassMark GPU Compute score of 21789, tests the 6850M XT does not share.

FAQ

Q: Does the RX 6850M XT beat the RTX 5080 in any benchmark?

A: No. The recorded head-to-head covers three tests, and the RTX 5080 wins all three, with the 6850M XT trailing by 61.1 to 73.9 percent depending on the test.

Q: How large is the memory difference?

A: The Radeon has 12 GB of GDDR6 on a 192-bit bus delivering 432.0 GB/s. The GeForce has 16 GB of GDDR7 on a 256-bit bus delivering 960.0 GB/s, more capacity and more than twice the bandwidth.

Q: Which card needs more system power?

A: The RTX 5080, by a wide margin. Its TDP is 360 W, it uses one 16-pin power connector, and it carries a suggested 750 W power supply. The 6850M XT has a 165 W TDP and no power connectors at all.

Q: Do both cards support the same graphics APIs?

A: Yes. Both list DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: Are both still in production?

A: No. The 6850M XT is marked end-of-life. The RTX 5080 is active, with a recorded successor line, GeForce 60.

Q: Which card has dedicated AI acceleration hardware?

A: The RTX 5080, with 336 tensor cores. The 6850M XT has no tensor cores listed in the database.

Specification Differences

• Chip and architecture: Navi 22 on RDNA 2.0 versus GB203 on Blackwell 2.0
• Process node: 7 nm versus 5 nm, both TSMC
• Transistors / die size / density: 17,200 million, 335 mm², 51.3M per mm² versus 45,600 million, 378 mm², 120.6M per mm²
• Shading units / TMUs / ROPs: 2560 / 160 / 64 versus 10752 / 336 / 112
• RT cores / tensor cores: 40 / none listed versus 84 / 336
• Memory: 12 GB GDDR6, 192-bit, 432.0 GB/s, 18 Gbps effective versus 16 GB GDDR7, 256-bit, 960.0 GB/s, 30 Gbps effective
• FP32 / FP16: 13.21 TFLOPS and 26.43 TFLOPS (2:1) versus 56.28 TFLOPS and 56.28 TFLOPS (1:1)
• Pixel rate / texture rate: 165.2 GPixel/s and 413.0 GTexel/s versus 293.1 GPixel/s and 879.3 GTexel/s
• TDP and power: 165 W, no connectors versus 360 W, one 16-pin connector, 750 W suggested supply
• Form factor: IGP slot width, portable-device-dependent outputs versus dual-slot, 304 mm by 137 mm by 40 mm, with one HDMI 2.1b and three DisplayPort 2.1b outputs
• Bus interface: PCIe 4.0 x16 versus PCIe 5.0 x16
• Status: End-of-life versus active; launch MSRP of 999 USD recorded for the 5080, none for the 6850M XT

The Verdict

For pure performance, the data admits one conclusion: the RTX 5080 is in a different class. It wins every shared benchmark by 61 percent or more, delivers roughly four times the FP32 throughput, more than twice the memory bandwidth, and doubles the ROP and RT-core counts. Its rival set, the Radeon 8060S, RX 6750 GRE, Pro W5700X, and RX 9070 GRE, sits within a couple of percent of its average, while the 6850M XT's rivals are Tesla P100 variants and RTX 5090-class averages, a different neighborhood entirely on a different metric mix.

The 6850M XT's case rests entirely on what it is rather than what it scores. It is a mobile-integrated RDNA 2.0 part with a 165 W TDP, no power connectors, and no slot requirement, built for platforms where a 360 W dual-slot desktop card is simply not an option. Buyers choosing between these two on performance should pick the 5080 without hesitation; the only reason to pick the 6850M XT is a chassis that cannot host its rival at all.