AMD Radeon 840M vs AMD Radeon RX 7650 GRE Comparison

# FAQ

Q: What is the AMD Radeon 840M?

A: The AMD Radeon 840M is an integrated graphics processor (IGP) built on the Krackan Point chip, using the RDNA 3.5 architecture. It is part of the Navi III IGP generation for Strix Point Mobile, fabricated on a 4 nm process at TSMC, with a 15 W TDP and no dedicated power connectors.

Q: What is the AMD Radeon RX 7650 GRE?

A: The AMD Radeon RX 7650 GRE is a discrete graphics card in the Radeon RX 7000 series, based on the Navi 33 chip with RDNA 3.0 architecture. It uses a 6 nm process, has a 170 W TDP, requires a 450 W suggested PSU, and connects via a single 8-pin power connector.

Q: How do their memory configurations differ?

A: The Radeon 840M uses system shared memory with system-dependent bandwidth and bus width. The RX 7650 GRE has 8 GB of GDDR6 memory on a 128-bit bus, delivering 288.0 GB/s of bandwidth.

Q: Which GPU has more shading units and texture units?

A: The RX 7650 GRE has 2048 shading units, 128 texture mapping units, and 64 ROPs. The Radeon 840M has 256 shading units, 16 TMUs, and 8 ROPs.

Q: What are the clock speed ranges for each GPU?

A: The Radeon 840M has a base clock of 400 MHz and a boost clock of 2900 MHz. The RX 7650 GRE has a base clock of 1720 MHz, a game clock of 2350 MHz, and a boost clock of 2695 MHz.

Q: What is the release timeline for these two products?

A: The Radeon 840M was released on 2025-02-28, while the RX 7650 GRE was released earlier on 2025-02-06. Both are currently listed as active in production.

# Architecture Differences

The two GPUs represent fundamentally different design philosophies from AMD. The Radeon 840M is an integrated processor built on the Krackan Point chip, using the newer RDNA 3.5 architecture. It is manufactured on a 4 nm process at TSMC, which is a smaller node than the RX 7650 GRE's 6 nm process. The 840M belongs to the Navi III IGP generation for Strix Point Mobile, designed for portable devices where power efficiency is critical. Its 15 W TDP reflects this mobile-first approach, and it relies entirely on system shared memory rather than dedicated VRAM. The bus interface is PCIe 4.0 x8, and display outputs are portable device dependent.

The RX 7650 GRE is a discrete add-in card in the Radeon RX 7000 series, built on the Navi 33 chip with the older RDNA 3.0 architecture. It is codenamed Hotpink Bonefish and belongs to the Navi III generation for RX 7000. The 6 nm process is larger than the 840M's 4 nm node, but the card compensates with a much larger silicon footprint. The RX 7650 GRE has 13,300 million transistors on a 204 mm² die, giving a transistor density of 65.2M per mm². The Radeon 840M's transistor count and die size are unknown in the database, but the architectural differences are substantial.

Compute resources differ dramatically between the two. The RX 7650 GRE has 2048 shading units, 128 TMUs, and 64 ROPs, whereas the 840M has 256 shading units, 16 TMUs, and 8 ROPs. Ray tracing hardware also differs: the RX 7650 GRE includes 32 RT cores, while the 840M has only 4. Neither GPU has tensor cores listed in the database. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API-level feature support is identical.

Memory architecture is another major divider. The 840M uses system shared memory with system-dependent bandwidth, meaning performance scales with the host system's memory configuration. The RX 7650 GRE has dedicated 8 GB of GDDR6 memory on a 128-bit bus, with a fixed bandwidth of 288.0 GB/s and memory clocks of 2250 MHz (18 Gbps effective). The discrete card's memory subsystem is far more predictable and consistent.

Power delivery and physical design also separate the two. The 840M is an IGP with no power connectors and a 15 W TDP, fitting into the motherboard as an integrated solution. The RX 7650 GRE is a dual-slot card measuring 204 mm (8 inches) in length and 115 mm (4.5 inches) in height, requiring a single 8-pin power connector and a 450 W suggested PSU. Its TDP of 170 W is over eleven times higher than the 840M's.

The display output situation differs as well. The 840M's outputs are portable device dependent, while the RX 7650 GRE provides 1x HDMI 2.1a and 3x DisplayPort 2.1. The RX 7650 GRE has a launch MSRP of 279 USD, while the 840M has no launch MSRP listed.

# The Verdict

The recorded data draws a clear line between these two products. The Radeon 840M is an integrated solution for portable devices, with a 15 W TDP, shared system memory, and a modest 256 shading units. It targets lightweight computing and basic graphics workloads where power draw and physical space are constrained. Its 50th percentile ranking versus all GPUs places it in the middle of the field, indicating average performance for an integrated part.

The RX 7650 GRE is a discrete graphics card aimed at desktop gaming and content creation. Its 83rd percentile ranking versus all GPUs places it well above the 840M. The benchmark data shows an average benchmark score of 42,723, with a 3DMark Steel Nomad DX12 score of 2,336 and a Geekbench OpenCL score of 83,109. The nearest rivals in the database are the NVIDIA GeForce RTX 4070 SUPER at 43,223 average score (1.2% higher), the NVIDIA Quadro M6000 24 GB at 43,262 (1.2% higher), the NVIDIA GeForce RTX 5050 Mobile at 43,268 (1.3% higher), and the NVIDIA Quadro M6000 at 43,301 (1.3% higher). This places the RX 7650 GRE essentially at parity with those cards, all within a 1.3% margin.

Users should pick the Radeon 840M when the system is a thin-and-light portable device with no room for a discrete card, where the 15 W power envelope is mandatory, and where system shared memory is the only viable option. Users should pick the RX 7650 GRE when they need a desktop card with dedicated 8 GB GDDR6 memory, 288.0 GB/s bandwidth, and the compute throughput to handle demanding 3D workloads. The RX 7650 GRE's predecessor is Navi II, and its successor is Navi IV, while the 840M's predecessor is Navi II IGP with no successor listed.

# Specification Differences

The two GPUs differ across nearly every specification category in the database. Process node: the 840M uses 4 nm, the RX 7650 GRE uses 6 nm. The 840M's transistor count and die size are unknown, while the RX 7650 GRE has 13,300 million transistors on a 204 mm² die with a density of 65.2M per mm².

Clock speeds: the 840M has a 400 MHz base and 2900 MHz boost. The RX 7650 GRE has a 1720 MHz base, 2350 MHz game clock, and 2695 MHz boost. Memory speed: the 840M uses system shared memory, while the RX 7650 GRE runs at 2250 MHz with 18 Gbps effective. Memory size: system shared versus 8 GB GDDR6. Bus width: system shared versus 128 bit. Bandwidth: system dependent versus 288.0 GB/s.

Compute units: the 840M has 256 shading units, 16 TMUs, and 8 ROPs. The RX 7650 GRE has 2048 shading units, 128 TMUs, and 64 ROPs. Ray tracing cores: 4 versus 32. Pixel rate: 23.20 GPixel/s versus 172.5 GPixel/s. Texture rate: 46.40 GTexel/s versus 345.0 GTexel/s. FP32 performance: 1,484.8 GFLOPS versus 22.08 TFLOPS. FP16 performance: 1,484.8 GFLOPS (1:1) versus 22.08 TFLOPS (1:1).

TDP: 15 W versus 170 W. Slot width: IGP versus dual-slot. Power connectors: none versus 1x 8-pin. Suggested PSU: not listed versus 450 W. Dimensions: not listed versus 204 mm length and 115 mm height. Display outputs: portable device dependent versus 1x HDMI 2.1a and 3x DisplayPort 2.1. Release dates: 2025-02-28 versus 2025-02-06. Launch MSRP: not listed versus 279 USD.

# Head-to-Head Benchmarks

The database contains no head-to-head benchmark results between the Radeon 840M and the RX 7650 GRE. The wins counter shows 0 for each GPU. However, the available benchmark data for the RX 7650 GRE provides a reference point for its performance class.

The RX 7650 GRE achieves a 3DMark Steel Nomad DX12 score of 2,336. This test is a demanding DirectX 12 workload that stresses the GPU's compute and rendering capabilities. The Geekbench OpenCL score of 83,109 measures general-purpose compute performance across a variety of workloads. The average benchmark score of 42,723 combines these results into a single metric.

The RX 7650 GRE's percentile ranking of 83 versus all GPUs means it outperforms the vast majority of graphics hardware in the database. Its nearest rivals confirm this positioning: the NVIDIA GeForce RTX 4070 SUPER scores 43,223 on average, which is 1.2% higher; the NVIDIA Quadro M6000 24 GB scores 43,262, also 1.2% higher; the NVIDIA GeForce RTX 5050 Mobile scores 43,268, 1.3% higher; and the NVIDIA Quadro M6000 scores 43,301, 1.3% higher. The RX 7650 GRE's average score of 42,723 is within 600 points of all four rivals, representing a performance spread of less than 1.3%.

The Radeon 840M has an average benchmark score of 0 and no benchmark entries in the database. Its percentile ranking of 50 versus all GPUs places it at the median of all recorded GPUs, but without specific benchmark results, direct numerical comparison is impossible. The 840M's FP32 throughput of 1,484.8 GFLOPS versus the RX 7650 GRE's 22.08 TFLOPS indicates a roughly 14.9x difference in raw compute capability, and the pixel rate difference (23.20 GPixel/s versus 172.5 GPixel/s) shows a 7.4x gap in fill rate. These derived comparisons, while not from direct benchmark runs, illustrate the scale of the performance separation.

# Where Each One Wins

The Radeon 840M wins in power efficiency and physical integration. Its 15 W TDP is dramatically lower than the RX 7650 GRE's 170 W, making it suitable for portable devices where battery life and thermal limits are primary constraints. As an IGP with no power connectors, it requires no additional power delivery infrastructure. Its 4 nm process node is more advanced than the 6 nm node of the RX 7650 GRE, which contributes to its efficiency. The 840M's system shared memory approach eliminates the need for dedicated VRAM, reducing cost and complexity in integrated systems. Its boost clock of 2900 MHz is higher than the RX 7650 GRE's boost of 2695 MHz, though this advantage is offset by the far larger compute resource pool on the discrete card.

The RX 7650 GRE wins in every raw performance category. Its 8 GB of GDDR6 memory with 288.0 GB/s bandwidth provides dedicated, predictable memory performance that the 840M cannot match with system dependent bandwidth. The 2048 shading units, 128 TMUs, and 64 ROPs deliver pixel rates of 172.5 GPixel/s and texture rates of 345.0 GTexel/s. Its FP32 throughput of 22.08 TFLOPS is in a different performance class entirely from the 840M's 1,484.8 GFLOPS. The 32 RT cores versus 4 provide substantially better ray tracing capability. The 83rd percentile ranking and average benchmark score of 42,723 place it among the top tier of GPUs in the database, while the 840M sits at the 50th percentile with no recorded benchmark scores.

The RX 7650 GRE also wins in connectivity. Its display outputs include 1x HDMI 2.1a and 3x DisplayPort 2.1, supporting multiple high-resolution monitors. The 840M's outputs are portable device dependent, meaning the user's laptop or mini PC determines the available connections. The RX 7650 GRE's dual-slot cooler and 1x 8-pin power connector are standard for desktop installations, and its 204 mm length fits in most mid-tower cases.

For users who need maximum performance in a desktop system, the RX 7650 GRE is the clear choice based on the data. For users who need a GPU integrated into a portable device with minimal power draw, the Radeon 840M is the appropriate selection. The two products do not compete in the same market segment; they serve different system classes with different priorities. The 840M's 50th percentile ranking indicates average performance among all GPUs, while the RX 7650 GRE's 83rd percentile ranking indicates well-above-average performance, and the benchmark scores confirm this separation.