AMD Radeon 820M vs NVIDIA Jetson T4000 Comparison

AMD Radeon 820M and NVIDIA Jetson T4000 occupy very different positions in the GPU landscape, and the recorded specifications confirm that they share almost nothing beyond being active production parts. The Radeon 820M is an integrated graphics processor from AMD, built on the RDNA 3.5 architecture and designed for mobile devices. The Jetson T4000 is an NVIDIA embedded module based on the Blackwell architecture, intended for server-class AI workloads. The database shows no direct head-to-head benchmark results between these two parts, and neither has an average benchmark score recorded. However, the specification data provides a clear basis for comparing their capabilities.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries for the AMD Radeon 820M and the NVIDIA Jetson T4000. There are no recorded wins for either part in direct comparison, and neither device has an average benchmark score listed. This absence of direct measurement data means that performance comparisons must be derived from the recorded hardware specifications rather than from empirical benchmark results.

The most significant performance gap appears in raw compute throughput. The Jetson T4000 delivers 4.700 TFLOPS of FP32 performance, while the Radeon 820M provides 716.8 GFLOPS. This places the Jetson T4000 at roughly 6.5 times the FP32 throughput of the Radeon 820M, a substantial advantage for any compute-heavy workload. The FP16 figures follow the same pattern, with both parts offering 1:1 FP16 to FP32 ratios, meaning the Jetson T4000 also achieves 4.700 TFLOPS in FP16 while the Radeon 820M remains at 716.8 GFLOPS.

Texture and pixel throughput tell a similar story. The Jetson T4000 records a texture rate of 73.44 GTexel/s compared to 22.40 GTexel/s for the Radeon 820M, representing a 3.3 times advantage. Pixel rate shows a narrower gap, with the Jetson T4000 at 24.48 GPixel/s versus 11.20 GPixel/s for the Radeon 820M, a 2.2 times difference. These figures suggest that the Jetson T4000 maintains its lead across most rendering operations, though the pixel rate gap is smaller than the compute or texture gaps.

Memory bandwidth is another area of clear separation. The Jetson T4000 uses 64 GB of LPDDR5X memory on a 256-bit bus, delivering 273.2 GB/s of bandwidth. The Radeon 820M relies on system shared memory, with bandwidth listed as system dependent. This means the Radeon 820M's memory performance cannot be stated as a fixed number, but the Jetson T4000's dedicated 273.2 GB/s figure represents a fixed and substantial bandwidth pool.

Clock speeds show a different relationship. The Radeon 820M has a base clock of 400 MHz and a boost clock of 2800 MHz, while the Jetson T4000 operates at a fixed 1530 MHz for both base and boost. The Radeon 820M's boost clock is 1.8 times higher than the Jetson T4000's operating clock, but the Jetson T4000 compensates with far more execution resources, including 1536 shading units versus 128.

Architecture Differences

The two parts are built on fundamentally different architectures and manufacturing processes. The AMD Radeon 820M uses the RDNA 3.5 architecture, which the database identifies as part of the Navi III IGP generation for Strix Point Mobile. It is fabricated on a 4 nm process at TSMC. The NVIDIA Jetson T4000 uses the Blackwell architecture, belongs to the Server Blackwell generation, and is fabricated on a 5 nm process, also at TSMC. The process node difference gives the Radeon 820M a smaller transistor geometry, though both parts share TSMC as their foundry.

The chip designs are entirely different. The Radeon 820M uses the Krackan Point 2 chip, while the Jetson T4000 uses the GB10B chip. The database records the Jetson T4000's die size at 391 mm², while the Radeon 820M's die size is unknown. Transistor counts are unknown for both parts.

Execution resource counts diverge sharply. The Radeon 820M has 128 shading units, 8 texture mapping units, and 4 render output units. The Jetson T4000 has 1536 shading units, 48 texture mapping units, and 16 render output units. These numbers indicate the Jetson T4000 has 12 times the shading units, 6 times the texture units, and 4 times the render output units of the Radeon 820M.

Ray tracing and tensor capabilities also differ. The Radeon 820M includes 2 ray tracing cores and no tensor cores. The Jetson T4000 includes 12 ray tracing cores and 64 tensor cores. The presence of 64 tensor cores on the Jetson T4000 reflects its intended use for AI and machine learning workloads, a feature entirely absent from the Radeon 820M.

Memory architecture is fundamentally different. The Radeon 820M uses system shared memory, with size, type, and bus width all listed as system shared. The Jetson T4000 has 64 GB of dedicated LPDDR5X memory on a 256-bit bus, with memory clocked at 1067 MHz and an effective data rate of 8.5 Gbps. The Radeon 820M's memory clock is also listed as system shared, meaning no fixed memory clock is recorded.

Power characteristics show a wide separation. The Radeon 820M has a TDP of 15 W, while the Jetson T4000 has a TDP of 90 W. The Jetson T4000 also lists a suggested PSU of 250 W, while the Radeon 820M has no suggested PSU recorded. Neither part requires external power connectors, and both are listed as IGP form factors.

API support differs completely. The Radeon 820M supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The Jetson T4000 lists N/A for DirectX, OpenGL, and Vulkan, indicating it does not expose these graphics APIs. This makes the Jetson T4000 unsuitable for conventional PC gaming or graphics applications that rely on these APIs.

FAQ

Q: Which part has higher FP32 compute performance?

A: The NVIDIA Jetson T4000 records 4.700 TFLOPS of FP32 performance, compared to 716.8 GFLOPS for the AMD Radeon 820M. The Jetson T4000 delivers approximately 6.5 times the FP32 throughput.

Q: Does the AMD Radeon 820M support DirectX 12 Ultimate?

A: Yes, the Radeon 820M supports DirectX 12 Ultimate (12_2), along with OpenGL 4.6 and Vulkan 1.4. The Jetson T4000 lists N/A for all three graphics APIs.

Q: How much memory does each part have?

A: The Jetson T4000 has 64 GB of LPDDR5X memory on a 256-bit bus with 273.2 GB/s bandwidth. The Radeon 820M uses system shared memory, with size, type, bus width, and bandwidth all dependent on the host system.

Q: What are the ray tracing capabilities of these parts?

A: The Radeon 820M includes 2 ray tracing cores, while the Jetson T4000 includes 12 ray tracing cores. The Jetson T4000 also adds 64 tensor cores, which the Radeon 820M lacks entirely.

Q: What is the power consumption difference?

A: The Radeon 820M has a TDP of 15 W, while the Jetson T4000 has a TDP of 90 W. The Jetson T4000 also records a suggested PSU of 250 W, while no suggested PSU is listed for the Radeon 820M.

Q: Which part has a higher boost clock?

A: The Radeon 820M has a boost clock of 2800 MHz, compared to the Jetson T4000's fixed 1530 MHz operating clock. The Radeon 820M's base clock is 400 MHz, while the Jetson T4000's base clock matches its boost at 1530 MHz.

Specification Differences

The specification table shows every field where the two parts differ. The Radeon 820M is manufactured by AMD on a 4 nm process, while the Jetson T4000 is manufactured by NVIDIA on a 5 nm process. The Radeon 820M uses the Krackan Point 2 chip with RDNA 3.5 architecture from the Navi III IGP generation. The Jetson T4000 uses the GB10B chip with Blackwell architecture from the Server Blackwell generation.

Clock specifications differ. The Radeon 820M has a 400 MHz base clock and a 2800 MHz boost clock. The Jetson T4000 has a 1530 MHz base clock and a 1530 MHz boost clock, with memory clocked at 1067 MHz and 8.5 Gbps effective. The Radeon 820M's memory clock is system shared.

Memory configurations are completely different. The Radeon 820M has system shared memory with system dependent bandwidth. The Jetson T4000 has 64 GB of LPDDR5X on a 256-bit bus with 273.2 GB/s bandwidth.

Execution resources show large differences. The Radeon 820M has 128 shading units, 8 TMUs, 4 ROPs, 2 ray tracing cores, and no tensor cores. The Jetson T4000 has 1536 shading units, 48 TMUs, 16 ROPs, 12 ray tracing cores, and 64 tensor cores.

Throughput rates differ. The Radeon 820M records 11.20 GPixel/s pixel rate and 22.40 GTexel/s texture rate. The Jetson T4000 records 24.48 GPixel/s pixel rate and 73.44 GTexel/s texture rate. FP32 and FP16 are both 716.8 GFLOPS for the Radeon 820M and 4.700 TFLOPS for the Jetson T4000.

Power and physical specifications differ. The Radeon 820M has a 15 W TDP, while the Jetson T4000 has a 90 W TDP and a 250 W suggested PSU. The Jetson T4000 measures 87 mm in length, 100 mm in height, and 15 mm in width. The Radeon 820M has no dimensions recorded. Both use PCIe interfaces, but the Radeon 820M uses PCIe 4.0 x8 while the Jetson T4000 uses PCIe 5.0 x8.

Display and API support differ. The Radeon 820M has portable device dependent display outputs, while the Jetson T4000 has no outputs. The Radeon 820M supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. The Jetson T4000 lists N/A for all three.

Release timing and market position differ. The Radeon 820M was released on 2025-02-28, with a predecessor of Navi II IGP. The Jetson T4000 was released on 2026-01-04, with a predecessor of Server Hopper and a successor of Server Rubin. The Jetson T4000 has a launch MSRP of 1,999 USD, while no launch MSRP is recorded for the Radeon 820M.

Where Each One Wins

The AMD Radeon 820M holds advantages in several areas that matter for mobile and integrated graphics use. Its 15 W TDP makes it suitable for power-constrained portable devices, compared to the Jetson T4000's 90 W TDP. The Radeon 820M also supports standard graphics APIs including DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, making it compatible with conventional PC graphics software. The Jetson T4000 lists N/A for all of these APIs, meaning it cannot run standard graphics applications that depend on them.

The Radeon 820M's boost clock of 2800 MHz is substantially higher than the Jetson T4000's 1530 MHz, which can benefit workloads that scale with clock speed. Its 4 nm process node is smaller than the Jetson T4000's 5 nm node, potentially offering efficiency advantages per transistor. The Radeon 820M also has display outputs, listed as portable device dependent, while the Jetson T4000 has no outputs at all.

The NVIDIA Jetson T4000 wins on raw compute performance across every measured throughput metric. Its FP32 and FP16 performance of 4.700 TFLOPS dwarfs the Radeon 820M's 716.8 GFLOPS. Its texture rate of 73.44 GTexel/s is 3.3 times higher, and its pixel rate of 24.48 GPixel/s is 2.2 times higher. These advantages make the Jetson T4000 the stronger choice for compute-intensive tasks such as AI inference, machine learning training, or scientific simulation.

Memory capacity and bandwidth strongly favor the Jetson T4000. Its 64 GB of dedicated LPDDR5X memory with 273.2 GB/s bandwidth provides a fixed and large memory pool, while the Radeon 820M depends on system shared memory with system dependent bandwidth. The Jetson T4000's 64 tensor cores add dedicated hardware for AI workloads, an asset the Radeon 820M does not have at all. Its 12 ray tracing cores also outnumber the Radeon 820M's 2.

The Jetson T4000's PCIe 5.0 x8 interface provides a newer bus standard than the Radeon 820M's PCIe 4.0 x8. Its larger die size of 391 mm² reflects a more complex chip with far more execution resources. The Jetson T4000 also records a successor in Server Rubin, indicating an active product roadmap, while the Radeon 820M's successor is not listed.

The data indicates these parts serve distinct purposes. The Radeon 820M functions as an integrated GPU for mobile systems, prioritizing low power, API compatibility, and display output. The Jetson T4000 operates as an embedded compute module for server environments, prioritizing raw throughput, memory capacity, and AI acceleration. No direct benchmark comparison exists in the database, so the relative standing of each part rests on the recorded specification differences rather than measured performance.