AMD Radeon RX 7650 GRE vs AMD Radeon RX 7900M Comparison

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon RX 7900M records an average benchmark score of 97487, placing it in the 94th percentile of all GPUs. The AMD Radeon RX 7650 GRE averages 42723, which puts it in the 83rd percentile.

Q: How do the two cards compare in the 3DMark Steel Nomad DX12 test?

A: The RX 7900M scores 4201, while the RX 7650 GRE scores 2336. This gives the 7900M a 44.4% advantage, a decisive margin in a modern DirectX 12 workload.

Q: What is the difference in memory capacity and bandwidth?

A: The RX 7900M features 16 GB of GDDR6 on a 256-bit bus, delivering 576.0 GB/s of bandwidth. The RX 7650 GRE has 8 GB on a 128-bit bus, delivering 288.0 GB/s. The 7900M doubles both capacity and bandwidth.

Q: Which card has higher ray tracing core counts?

A: The RX 7900M includes 72 ray tracing cores, while the RX 7650 GRE includes 32. This is a 2.25x difference in dedicated RT hardware.

Q: Which GPU has a higher boost clock?

A: The RX 7650 GRE boosts to 2695 MHz, which is higher than the RX 7900M's 2090 MHz boost clock. However, the 7900M compensates with significantly more shading units and texture units.

Q: Which card has the higher transistor density?

A: The RX 7900M has a transistor density of 109.1M per mm² on a 5 nm process, while the RX 7650 GRE has 65.2M per mm² on a 6 nm process. Both are fabricated by TSMC.

The Verdict

The benchmark data is unambiguous: the AMD Radeon RX 7900M wins both recorded head-to-head tests and holds a substantial average score advantage. In the 3DMark Steel Nomad DX12 test, the 7900M delivers 4201 against 2336 for the RX 7650 GRE, a 44.4% lead. In Geekbench OpenCL, the 7900M scores 129499 versus 83109, a 35.8% margin.

The RX 7900M sits in the 94th percentile of all GPUs, while the RX 7650 GRE sits in the 83rd. Its nearest rivals in the database include the AMD Radeon Pro VII at 97131 (0.4% ahead), the NVIDIA Quadro RTX 6000 at 101872 (4.3% behind), and the AMD Radeon Instinct MI60 at 92466 (5.4% ahead). The RX 7650 GRE's nearest rivals are the NVIDIA GeForce RTX 4070 SUPER at 43223 (1.2% ahead), the NVIDIA Quadro M6000 24 GB at 43262 (1.2% ahead), and the NVIDIA GeForce RTX 5050 Mobile at 43268 (1.3% ahead). These groupings show that the 7900M competes in a much higher performance tier.

For users choosing a desktop card, the RX 7650 GRE is the only one with a desktop form factor (dual-slot, 204 mm length, 1x 8-pin power connector, 450 W suggested PSU). The RX 7900M is an IGP (integrated graphics processor) for portable devices, with no standalone dimensions, no power connectors, and display outputs that are portable device dependent. The data shows the 7900M is a mobile-class part that happens to outperform the desktop RX 7650 GRE by a wide margin in compute and DX12 workloads.

The RX 7650 GRE has a launch MSRP of 279 USD, but the 7900M has no launch MSRP recorded. The RX 7650 GRE is the appropriate choice for a desktop build requiring a compact, self-contained card. The RX 7900M is the appropriate choice when maximum performance is required in a portable system, provided the device supports its 180 W TDP. The 7900M also offers double the VRAM (16 GB vs 8 GB), which matters for memory-bound workloads.

Head-to-Head Benchmarks

The RX 7900M wins both recorded tests, and the margins are substantial.

In 3DMark Steel Nomad DX12, the RX 7900M scores 4201 against the RX 7650 GRE's 2336. The delta is 44.4% in favor of the 7900M. This is a large gap in a modern DirectX 12 rasterization test, indicating that the 7900M's higher shading unit count (4608 vs 2048) and wider memory bus (256-bit vs 128-bit) translate directly into frame-rate headroom.

In Geekbench OpenCL, the RX 7900M scores 129499 versus 83109 for the RX 7650 GRE, a 35.8% advantage. OpenCL workloads often scale with raw compute throughput, and the 7900M's FP32 performance of 38.52 TFLOPS versus 22.08 TFLOPS for the 7650 GRE aligns with this result. The 7900M also has a 2:1 FP16 ratio (77.05 TFLOPS) versus the 7650 GRE's 1:1 ratio (22.08 TFLOPS), which further benefits compute-heavy applications.

The RX 7900M also records a Geekbench Vulkan score of 158760, a test that was not run on the RX 7650 GRE. This additional data point suggests the 7900M's Vulkan performance is even stronger than its OpenCL showing, though no direct comparison is possible from the recorded data.

The average benchmark scores confirm the head-to-head results. The RX 7900M averages 97487, while the RX 7650 GRE averages 42723. The 7900M's nearest rivals include the AMD Radeon Pro VII (97131, 0.4% higher), the NVIDIA Quadro RTX 6000 (101872, 4.3% higher), and the AMD Radeon Instinct MI60 (92466, 5.4% lower). The 7650 GRE's nearest rivals are all within 1.3% of its average score, including the NVIDIA GeForce RTX 4070 SUPER (43223, 1.2% higher) and the NVIDIA GeForce RTX 5050 Mobile (43268, 1.3% higher). The 7900M's performance tier is clearly above the 7650 GRE's tier by a wide margin.

Specification Differences

The RX 7900M and RX 7650 GRE differ in nearly every core specification.

The RX 7900M uses the Navi 31 chip with 57,700 million transistors on a 529 mm² die. The RX 7650 GRE uses the Navi 33 chip with 13,300 million transistors on a 204 mm² die. Transistor density is 109.1M per mm² for the 7900M versus 65.2M per mm² for the 7650 GRE, reflecting the 7900M's 5 nm process versus the 7650 GRE's 6 nm process.

The RX 7900M has 4608 shading units, 288 texture mapping units, and 192 ROPs. The RX 7650 GRE has 2048 shading units, 128 TMUs, and 64 ROPs. The 7900M doubles the shading units, more than doubles TMUs, and triples ROPs. Ray tracing cores are 72 on the 7900M versus 32 on the 7650 GRE.

Memory configurations differ sharply. The 7900M has 16 GB of GDDR6 on a 256-bit bus with 576.0 GB/s bandwidth. The 7650 GRE has 8 GB on a 128-bit bus with 288.0 GB/s bandwidth. Both use GDDR6 at 2250 MHz with 18 Gbps effective.

Clock speeds favor the 7650 GRE. Its base clock is 1720 MHz, its boost clock is 2695 MHz, and it has a game clock of 2350 MHz. The 7900M has a base clock of 1825 MHz and a boost clock of 2090 MHz, with no game clock recorded. The 7650 GRE boosts 605 MHz higher, but the 7900M's larger execution units outweigh this.

Pixel and texture rates favor the 7900M heavily: 401.3 GPixel/s and 601.9 GTexel/s versus 172.5 GPixel/s and 345.0 GTexel/s for the 7650 GRE. FP32 compute is 38.52 TFLOPS for the 7900M versus 22.08 TFLOPS for the 7650 GRE. FP16 is 77.05 TFLOPS (2:1) for the 7900M versus 22.08 TFLOPS (1:1) for the 7650 GRE.

Physical and power characteristics differ. The 7650 GRE has a 170 W TDP, dual-slot form factor, 1x 8-pin power connector, 450 W suggested PSU, and measures 204 mm by 115 mm. The 7900M has a 180 W TDP, is an IGP with no slot width, no power connectors, no suggested PSU, and no recorded dimensions. Bus interface is PCIe 4.0 x8 for the 7650 GRE and PCIe 4.0 x16 for the 7900M. Display outputs are 1x HDMI 2.1a and 3x DisplayPort 2.1 for the 7650 GRE, while the 7900M's outputs are portable device dependent.

Architecture Differences

Both GPUs use AMD's RDNA 3.0 architecture and belong to the Radeon RX 7000 series, but they are implemented on different chips and processes.

The RX 7650 GRE is built on the Navi 33 chip, codenamed Hotpink Bonefish, using a 6 nm TSMC process. The RX 7900M is built on the Navi 31 chip, codenamed Plum Bonito, using a 5 nm TSMC process. The 5 nm node enables a transistor density of 109.1M per mm² versus 65.2M per mm² for the 6 nm process.

The RX 7900M belongs to the Navi Mobile generation (RX 7000M), while the RX 7650 GRE belongs to the Navi III generation (RX 7000). The 7900M's predecessor is Polaris Mobile, and it has no recorded successor. The 7650 GRE's predecessor is Navi II and its successor is Navi IV.

Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Neither has tensor cores. The RX 7900M has 72 ray tracing cores versus 32 on the RX 7650 GRE, a 2.25x difference in dedicated RT hardware.

The RX 7900M's FP16 throughput is 77.05 TFLOPS at a 2:1 ratio relative to FP32, meaning it can execute two FP16 operations per FP32 operation per clock. The RX 7650 GRE's FP16 throughput is 22.08 TFLOPS at a 1:1 ratio, meaning FP16 and FP32 execute at the same rate. This architectural difference matters for workloads that use reduced precision, such as certain AI inference and compute tasks.

The 7900M's memory subsystem is fundamentally wider: 256-bit versus 128-bit, 16 GB versus 8 GB, and 576.0 GB/s versus 288.0 GB/s. This doubles the memory bandwidth and capacity, which directly impacts high-resolution rendering, large dataset processing, and memory-heavy compute workloads.

The RX 7650 GRE is a desktop part with a defined physical footprint and power delivery design (170 W TDP, 1x 8-pin, 450 W PSU suggestion). The RX 7900M is an integrated mobile part with no standalone power delivery, designed to be embedded in a portable device with a 180 W TDP budget. The architecture is the same RDNA 3.0, but the implementation targets different market segments: compact desktop versus high-performance mobile.