AMD Radeon RX 6650 XT vs NVIDIA GeForce RTX 3070 Comparison

The Verdict

The benchmark data is decisive: the NVIDIA GeForce RTX 3070 wins 9 of 10 head-to-head tests, while the AMD Radeon RX 6650 XT takes only a single victory. For raw performance across the majority of workloads, the RTX 3070 is the clear choice. The RX 6650 XT, however, delivers one notable specialty win in Vulkan compute, where it outperforms the RTX 3070 by 286.8%. The average benchmark score tells a more nuanced story: the RX 6650 XT averages 19765 across all tests, while the RTX 3070 averages 17208. The RX 6650 XT sits at the 65th percentile among all GPUs, slightly ahead of the RTX 3070's 61st percentile. This indicates that the AMD card's wins are concentrated in specific areas, whereas the NVIDIA card's strengths are broader and more consistent. Buyers prioritizing general DX11, DX12, DirectX 9, or compute performance should select the RTX 3070. Users targeting Vulkan-specific applications should consider the RX 6650 XT. The RTX 3070 also holds advantages in memory bandwidth and pixel throughput, but both cards share identical memory capacity and API support.

Architecture Differences

The two GPUs diverge fundamentally in chip design and manufacturing process. The RX 6650 XT uses the Navi 23 chip built on RDNA 2.0 architecture, fabricated on TSMC's 7 nm node with 11,060 million transistors on a 237 mm² die. The RTX 3070 uses the GA104 chip based on Ampere architecture, manufactured by Samsung on an 8 nm process with 17,400 million transistors on a 392 mm² die. The transistor density favors the AMD card slightly: 46.7M per mm² versus 44.4M per mm² for NVIDIA. Despite the RTX 3070 having roughly 57% more transistors, the RX 6650 XT achieves a higher density on its smaller die.

Core configurations differ substantially. The RX 6650 XT packs 2048 shading units, 128 texture mapping units, 64 render output units, and 32 ray tracing cores. The RTX 3070 counters with 5888 shading units, 184 TMUs, 96 ROPs, 46 RT cores, and 184 tensor cores. The NVIDIA card has nearly three times the shading units and more than double the ROPs. Clock speeds favor AMD: the RX 6650 XT runs at a 2055 MHz base and 2635 MHz boost, while the RTX 3070 operates at 1500 MHz base and 1725 MHz boost. The RX 6650 XT also has a game clock of 2410 MHz, a specification the RTX 3070 lacks entirely.

Memory architecture presents another clear divergence. Both cards have 8 GB of GDDR6, but the RX 6650 XT uses a 128-bit bus delivering 280.3 GB/s bandwidth, while the RTX 3070 uses a 256-bit bus delivering 448.0 GB/s. The RTX 3070's memory clock is 1750 MHz (14 Gbps effective), lower than the RX 6650 XT's 2190 MHz (17.5 Gbps effective), but the wider bus more than compensates. The RTX 3070 also uses a PCIe 4.0 x16 interface, double the lane width of the RX 6650 XT's PCIe 4.0 x8 connection.

Power requirements differ meaningfully. The RTX 3070 draws 220 W TDP with a suggested 550 W PSU and uses a single 12-pin connector. The RX 6650 XT draws 176 W TDP with a suggested 450 W PSU and a single 8-pin connector. Both are dual-slot cards, and both offer identical display outputs: 1x HDMI 2.1 and 3x DisplayPort 1.4a. The RTX 3070 measures 242 mm in length and 112 mm in height; the RX 6650 XT's dimensions are unrecorded in the database.

Head-to-Head Benchmarks

The RTX 3070 dominates the head-to-head results with nine wins. The largest margin comes in Geekbench OpenCL, where the RTX 3070 scores 112821 against the RX 6650 XT's 10111, a delta of -91% for the AMD card. This is an order-of-magnitude gap in general compute performance. In 3DMark Steel Nomad DX12, the RTX 3070 scores 3162 versus 1859, a 41.2% advantage. PassMark GPU Compute shows the RTX 3070 at 11195 versus 7532, a 32.7% lead. PassMark DirectX 10 results favor NVIDIA by 27.3% (150 versus 109), and PassMark DirectX 12 shows a similar 27.1% gap (85 versus 62). PassMark G3D, a broader gaming-oriented metric, gives the RTX 3070 a 22.7% edge: 22214 versus 17166. Smaller but consistent wins appear in PassMark DirectX 9 (247 versus 215, a 13% gap), PassMark DirectX 11 (182 versus 169, a 7.1% gap), and PassMark G2D (1001 versus 918, an 8.3% gap).

The RX 6650 XT's sole victory is striking in its magnitude. In Geekbench Vulkan, the AMD card scores 81306 against the RTX 3070's 21022, a 286.8% advantage. This single result drives the RX 6650 XT's higher average benchmark score and percentile ranking. The RTX 3070 does not record a Geekbench Metal score in the database, while the RX 6650 XT posts 97969 in that test. The RX 6650 XT also shows a PassMark DirectX 10 score of 109, which is lower than its DirectX 9 score of 215, suggesting API-specific optimization patterns.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon RX 6650 XT averages 19765 across all recorded benchmarks, while the NVIDIA GeForce RTX 3070 averages 17208. The RX 6650 XT also ranks at the 65th percentile among all GPUs versus the RTX 3070's 61st percentile.

Q: Why does the RX 6650 XT have a higher average score despite losing 9 of 10 head-to-head tests?

A: The RX 6650 XT's massive 286.8% victory in Geekbench Vulkan (81306 versus 21022) inflates its average. The RTX 3070 wins most tests but by smaller margins, and its largest win in Geekbench OpenCL (112821 versus 10111) is offset by a very low Vulkan score.

Q: How do the memory subsystems compare?

A: Both cards have 8 GB of GDDR6, but the RTX 3070 uses a 256-bit bus with 448.0 GB/s bandwidth, while the RX 6650 XT uses a 128-bit bus with 280.3 GB/s. The RTX 3070's memory runs at 1750 MHz (14 Gbps effective) versus the RX 6650 XT's 2190 MHz (17.5 Gbps effective).

Q: Which card has more shading units and ray tracing cores?

A: The RTX 3070 has 5888 shading units and 46 RT cores, compared to the RX 6650 XT's 2048 shading units and 32 RT cores. The RTX 3070 also features 184 tensor cores, which the RX 6650 XT does not have.

Q: What are the power requirements for each card?

A: The RTX 3070 has a 220 W TDP and requires a 550 W suggested PSU with a 1x 12-pin connector. The RX 6650 XT has a 176 W TDP with a 450 W suggested PSU and a 1x 8-pin connector.

Q: Do both cards support the same DirectX and API versions?

A: Yes, both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The RX 6650 XT also records a Geekbench Metal score of 97969, while the RTX 3070 has no Metal score in the database.

Where Each One Wins

The RTX 3070 is the general-purpose performance leader. Its wins span DirectX 9, 10, 11, and 12, covering the majority of gaming APIs. The 41.2% lead in 3DMark Steel Nomad DX12 indicates strong modern gaming performance. The 32.7% advantage in PassMark GPU Compute and the 91% margin in Geekbench OpenCL point to substantial compute workloads like rendering, physics simulation, and data processing. The 22.7% win in PassMark G3D reinforces overall graphics capability. The RTX 3070's higher texture rate (317.4 GTexel/s versus 337.3 GTexel/s, note AMD actually leads here) and pixel rate (165.6 GPixel/s versus 168.6 GPixel/s, again AMD leads) are mixed, but its memory bandwidth advantage of 448.0 GB/s versus 280.3 GB/s supports bandwidth-heavy scenarios. The RTX 3070's FP32 throughput of 20.31 TFLOPS is nearly double the RX 6650 XT's 10.79 TFLOPS.

The RX 6650 XT wins decisively in Vulkan environments. The 286.8% lead in Geekbench Vulkan makes it the preferred option for Vulkan-based games and compute applications. Its FP16 performance of 21.59 TFLOPS (2:1 ratio) exceeds the RTX 3070's FP16 of 20.31 TFLOPS (1:1 ratio), suggesting advantages in mixed-precision workloads. The RX 6650 XT also has a higher texture rate (337.3 GTexel/s versus 317.4 GTexel/s) and pixel rate (168.6 GPixel/s versus 165.6 GPixel/s), giving it slight edges in fill-rate-bound scenarios. Its higher boost clock of 2635 MHz versus 1725 MHz contributes to these wins.

Specification Differences

The two cards differ across nearly every measured specification. The RX 6650 XT uses a 7 nm TSMC process with 11,060 million transistors on a 237 mm² die, while the RTX 3070 uses an 8 nm Samsung process with 17,400 million transistors on a 392 mm² die. Transistor density is 46.7M per mm² for AMD and 44.4M per mm² for NVIDIA. Base clocks are 2055 MHz for the RX 6650 XT and 1500 MHz for the RTX 3070; boost clocks are 2635 MHz versus 1725 MHz. The RX 6650 XT adds a game clock of 2410 MHz that the RTX 3070 lacks. Memory clocks are 2190 MHz (17.5 Gbps effective) for AMD and 1750 MHz (14 Gbps effective) for NVIDIA. Memory bus widths are 128-bit versus 256-bit, yielding bandwidth of 280.3 GB/s versus 448.0 GB/s. Shading units number 2048 versus 5888, TMUs 128 versus 184, ROPs 64 versus 96, RT cores 32 versus 46, and tensor cores null versus 184. Pixel rates are 168.6 GPixel/s versus 165.6 GPixel/s, texture rates 337.3 GTexel/s versus 317.4 GTexel/s, and FP32 throughput 10.79 TFLOPS versus 20.31 TFLOPS. FP16 rates are 21.59 TFLOPS (2:1) versus 20.31 TFLOPS (1:1). TDP is 176 W versus 220 W, with suggested PSUs of 450 W versus 550 W. Power connectors are 1x 8-pin versus 1x 12-pin. Bus interfaces are PCIe 4.0 x8 versus PCIe 4.0 x16. The RTX 3070 has recorded dimensions of 242 mm length and 112 mm height; the RX 6650 XT's dimensions are unrecorded. Both are dual-slot with identical display outputs and API support. The RX 6650 XT launched on 2022-05-09 with a launch MSRP of 399 USD; the RTX 3070 launched on 2020-08-31 with a launch MSRP of 499 USD. Both are end-of-life products.