AMD Radeon RX 7650 GRE vs AMD Radeon RX 7800M Comparison

AMD Radeon RX 7650 GRE and AMD Radeon RX 7800M are both members of the Radeon RX 7000 series, yet they target fundamentally different segments of the market. The RX 7650 GRE is a desktop add-in board, while the RX 7800M is a mobile integrated graphics processor designed for portable devices. Benchmark data from the database shows a clear performance hierarchy between the two, with the mobile part delivering substantially higher raw scores despite its portable form factor.

Head-to-Head Benchmarks

The database records two shared benchmark results for these GPUs, and the AMD Radeon RX 7800M wins both. In the 3DMark Steel Nomad DX12 test, the RX 7800M scores 2994, while the RX 7650 GRE scores 2336. This gives the RX 7800M a 22% lead over the RX 7650 GRE in this DirectX 12 workload. The delta percentage of -22 confirms that the RX 7650 GRE trails by that margin in this specific test.

The Geekbench OpenCL test shows an even larger gap. The RX 7800M delivers a score of 120778, compared to 83109 for the RX 7650 GRE. That translates to a 31.2% advantage for the RX 7800M in general-purpose compute performance. Across the two recorded benchmarks, the RX 7800M wins both, giving it a 2-0 record in head-to-head comparisons.

Context from the nearest rivals helps interpret these scores. The RX 7650 GRE sits in the 83rd percentile of all GPUs in the database, with an average benchmark score of 42723. Its closest competitors include the NVIDIA GeForce RTX 4070 SUPER, which averages 43223 and trails by only 1.2%, and the NVIDIA Quadro M6000 24 GB at 43262, also 1.2% behind. The RX 7650 GRE's average score puts it within a narrow band of these desktop-class rivals, indicating it competes at a high tier despite its smaller chip.

The RX 7800M, by contrast, holds the 73rd percentile and an average benchmark score of 27883. Its nearest rivals are very different in character: the AMD Radeon Pro Vega 20 scores 27839 (0.2% behind), the AMD Radeon Pro W5500X scores 27973 (0.3% ahead), and the NVIDIA GeForce GTX 980 Ti scores 28020 (0.5% ahead). The RX 7800M's average score is dragged down by its inclusion of several PassMark tests with very low scores, such as PassMark DirectX 10 at 99 and PassMark DirectX 9 at 174. These legacy API tests likely reflect driver maturity or workload characteristics rather than raw capability.

The discrepancy between the RX 7800M's strong performance in the two shared tests and its lower average score stems from its benchmark profile. In 3DMark Steel Nomad and Geekbench OpenCL, the RX 7800M clearly outperforms the RX 7650 GRE. The RX 7650 GRE, however, has a more consistent benchmark portfolio that keeps its average higher relative to its head-to-head results.

Architecture Differences

The two GPUs use different chips from TSMC. The RX 7650 GRE is built on the Navi 33 chip with the codename Hotpink Bonefish, fabricated on a 6 nm process. The RX 7800M uses the Navi 32 chip with the codename Wheat Nas, fabricated on a 5 nm process. Both belong to the RDNA 3.0 architecture and support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

The transistor counts differ substantially. The Navi 33 chip in the RX 7650 GRE contains 13,300 million transistors on a 204 mm² die, yielding a transistor density of 65.2 million per mm². The Navi 32 chip in the RX 7800M packs 28,100 million transistors onto a 346 mm² die, with a density of 81.2 million per mm². The RX 7800M's chip has more than double the transistors and a higher density, which explains its larger compute capacity.

Compute resources scale accordingly. The RX 7650 GRE has 2048 shading units, 128 texture mapping units, 64 render output units, and 32 ray tracing cores. The RX 7800M has 3840 shading units, 240 TMUs, 96 ROPs, and 60 ray tracing cores. Every major execution resource is substantially larger on the RX 7800M, with shading units nearly doubled and ray tracing cores nearly doubled as well.

Clock speeds favor the RX 7650 GRE. Its base clock is 1720 MHz, its boost clock is 2695 MHz, and its game clock is 2350 MHz. The RX 7800M runs lower clocks: a base of 1295 MHz, a boost of 2335 MHz, and a game clock of 2145 MHz. The RX 7650 GRE's higher clocks partially compensate for its smaller chip, but not enough to overcome the RX 7800M's resource advantage.

Memory configurations differ in both capacity and bandwidth. The RX 7650 GRE has 8 GB of GDDR6 on a 128-bit bus, delivering 288.0 GB/s of bandwidth. The RX 7800M has 12 GB of GDDR6 on a 192-bit bus, delivering 432.0 GB/s. Both run memory at 2250 MHz with 18 Gbps effective speed, but the wider bus gives the RX 7800M a 50% bandwidth advantage.

The power and form factor profiles could not be more different. The RX 7650 GRE is a dual-slot desktop card with a 170 W TDP, a single 8-pin power connector, and a suggested PSU of 450 W. The RX 7800M is an IGP (integrated graphics processor) with a 180 W TDP and no power connectors, since it draws power through the host system. The RX 7650 GRE measures 204 mm in length and 115 mm in height, while the RX 7800M has no listed dimensions because it is embedded in a portable device.

Interface and output differences follow the form factor split. The RX 7650 GRE uses PCIe 4.0 x8 and provides 1x HDMI 2.1a plus 3x DisplayPort 2.1 outputs. The RX 7800M uses PCIe 4.0 x16 and has display outputs described as portable device dependent, meaning the hosting laptop or handheld determines the physical connectors.

FAQ

Q: Which GPU is faster in DirectX 12 gaming workloads?

A: The AMD Radeon RX 7800M scores 2994 in 3DMark Steel Nomad DX12, which is 22% higher than the RX 7650 GRE's 2336.

Q: How much more memory does the RX 7800M have?

A: The RX 7800M has 12 GB of GDDR6, while the RX 7650 GRE has 8 GB. The RX 7800M also has a 192-bit bus versus 128-bit, giving it 432.0 GB/s bandwidth compared to 288.0 GB/s.

Q: Which GPU has higher clock speeds?

A: The RX 7650 GRE runs at a boost clock of 2695 MHz and a game clock of 2350 MHz, while the RX 7800M boosts to 2335 MHz with a game clock of 2145 MHz.

Q: What process nodes are used?

A: The RX 7650 GRE uses TSMC's 6 nm process, while the RX 7800M uses TSMC's 5 nm process.

Q: Do both GPUs support the same API features?

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

Q: What is the percentile ranking difference?

A: The RX 7650 GRE is in the 83rd percentile of all GPUs, while the RX 7800M is in the 73rd percentile.

The Verdict

The recorded data shows a clear performance split. The AMD Radeon RX 7800M wins both head-to-head benchmarks, with a 22% lead in 3DMark Steel Nomad and a 31.2% lead in Geekbench OpenCL. Its larger Navi 32 chip, with 28,100 million transistors versus 13,300 million, provides the underlying advantage. The RX 7800M also offers more memory, 12 GB versus 8 GB, and higher bandwidth, 432.0 GB/s versus 288.0 GB/s.

The RX 7650 GRE counters with higher clock speeds, a longer track record of consistent benchmark scores, and a better percentile ranking at 83 versus 73. Its average benchmark score of 42723 far exceeds the RX 7800M's 27883, because the RX 7800M's benchmark portfolio includes several low-scoring PassMark legacy tests. In the shared tests that matter for modern workloads, however, the RX 7800M is the faster part.

The RX 7800M suits systems where a single IGP must deliver strong performance across DirectX 12 and OpenCL workloads without discrete add-in cards. The RX 7650 GRE suits desktop builds that need a dual-slot card with standard display outputs, a single 8-pin connector, and a 450 W PSU recommendation. The RX 7650 GRE's nearest rivals include the NVIDIA GeForce RTX 4070 SUPER at only 1.2% higher average score, while the RX 7800M's rivals are older workstation and enthusiast parts like the AMD Radeon Pro Vega 20 and NVIDIA GeForce GTX 980 Ti.

Specification Differences

The two GPUs differ on nearly every measurable specification. The RX 7650 GRE uses the Navi 33 chip on a 6 nm process, while the RX 7800M uses Navi 32 on 5 nm. Transistors are 13,300 million versus 28,100 million. Die size is 204 mm² versus 346 mm². Transistor density is 65.2 million per mm² versus 81.2 million per mm².

Clocks diverge: base 1720 MHz versus 1295 MHz, boost 2695 MHz versus 2335 MHz, game 2350 MHz versus 2145 MHz. Memory is 8 GB versus 12 GB, bus width 128-bit versus 192-bit, bandwidth 288.0 GB/s versus 432.0 GB/s. Shading units are 2048 versus 3840, TMUs 128 versus 240, ROPs 64 versus 96, ray tracing cores 32 versus 60.

Pixel rate is 172.5 GPixel/s versus 224.2 GPixel/s, texture rate 345.0 GTexel/s versus 560.4 GTexel/s, FP32 22.08 TFLOPS versus 35.87 TFLOPS, FP16 22.08 TFLOPS versus 35.87 TFLOPS. TDP is 170 W versus 180 W. The RX 7650 GRE is dual-slot with one 8-pin connector and a 450 W suggested PSU; the RX 7800M is an IGP with no power connectors and no suggested PSU. Bus interface is PCIe 4.0 x8 versus PCIe 4.0 x16. Display outputs are 1x HDMI 2.1a plus 3x DisplayPort 2.1 versus portable device dependent. The RX 7650 GRE has a launch MSRP of 279 USD; the RX 7800M has no listed launch MSRP.