AMD Radeon 840M vs NVIDIA Jetson T4000 Comparison

Head-to-Head Benchmarks

The database contains no recorded benchmark entries for either the AMD Radeon 840M or the NVIDIA Jetson T4000. Both cards return an average benchmark score of zero, and the head-to-head benchmark table is empty. Consequently, no direct performance comparisons can be drawn from measured workloads, synthetic tests, or real-world application runs. The data indicates that both products sit at the 50th percentile among all GPUs in the database, a position that reflects their status as unbenchmarked entries rather than a statement of equal performance.

Without benchmark results, the analysis must rely on the recorded architectural and specification data. The Radeon 840M delivers a peak FP32 throughput of 1,484.8 GFLOPS, while the Jetson T4000 reaches 4.700 TFLOPS. Converting those figures to a common unit, the Jetson T4000 offers approximately 3.17 times the raw floating-point compute of the Radeon 840M. This difference is substantial, though the absence of workload-specific scores means that real-world deltas in gaming, rendering, or compute tasks remain unquantified.

Pixel throughput favors the Jetson T4000 at 24.48 GPixel/s versus 23.20 GPixel/s for the Radeon 840M, a margin of roughly 5.5 percent. Texture rate shows a larger gap: the Jetson T4000 processes 73.44 GTexel/s, which is 58.3 percent higher than the Radeon 840M's 46.40 GTexel/s. These figures indicate that the Jetson T4000 holds a clear advantage in fill-rate and texture-bound operations, assuming similar efficiency per clock, though the Radeon 840M's higher boost clock at 2900 MHz versus a fixed 1530 MHz on the Jetson T4000 narrows some of the theoretical gaps.

The Radeon 840M operates with a base clock of 400 MHz and a boost clock of 2900 MHz, while the Jetson T4000 runs at a constant 1530 MHz for both base and boost. The Radeon 840M's boost advantage is significant, but the Jetson T4000 compensates with a much larger execution resource pool, including 1536 shading units versus 256, 48 texture mapping units versus 16, and 16 raster output units versus 8. The Jetson T4000 also includes 12 ray tracing cores and 64 tensor cores, whereas the Radeon 840M carries 4 ray tracing cores and no tensor cores in the recorded data.

Memory configurations diverge sharply. The Radeon 840M uses system-shared memory with bandwidth described as system-dependent, meaning its effective memory performance relies entirely on the host platform's DRAM configuration. The Jetson T4000 provides 64 GB of dedicated LPDDR5X memory on a 256-bit bus, yielding 273.2 GB/s of fixed bandwidth. This dedicated allocation removes the Radeon 840M's dependency on shared system resources and provides a predictable, high-bandwidth memory subsystem for large datasets.

Where Each One Wins

The Radeon 840M's advantages are rooted in its integrated design and portability. It uses a 4 nm process node, consumes 15 W TDP, and requires no power connectors, making it suitable for compact and battery-powered devices. Its display outputs are listed as portable-device dependent, meaning it can drive integrated panels in laptops or handhelds, whereas the Jetson T4000 has no display outputs at all. The Radeon 840M also supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, enabling modern graphics APIs for gaming and interactive applications. The Jetson T4000 lists N/A for all three major graphics APIs, indicating it is not intended for traditional graphics rendering or consumer gaming workloads.

The Jetson T4000 wins decisively in compute-oriented tasks. Its 4.700 TFLOPS FP32 performance, 4.700 TFLOPS FP16 performance, and 64 tensor cores position it for machine learning inference, AI model deployment, and scientific computing. The 273.2 GB/s memory bandwidth and 64 GB capacity support large batch sizes and high-resolution tensors, while the 12 ray tracing cores provide hardware acceleration for ray-traced workloads, though the absence of DirectX support limits that capability to non-graphics compute contexts. The Jetson T4000 uses a 5 nm process node, a 391 mm² die size, and a 90 W TDP, with a suggested PSU of 250 W, reflecting its role as a dedicated accelerator for embedded or server-class deployments.

In terms of physical footprint, the Jetson T4000 measures 87 mm in length, 100 mm in height, and 15 mm in width, which is a compact module suitable for integration into carrier boards. The Radeon 840M has no recorded dimensions, consistent with its IGP classification. The Radeon 840M uses a PCIe 4.0 x8 interface, while the Jetson T4000 uses PCIe 5.0 x8, giving the latter twice the per-lane bandwidth for data transfer with a host processor.

Power efficiency favors the Radeon 840M on paper. At 15 W TDP, it delivers 1,484.8 GFLOPS, resulting in roughly 99 GFLOPS per watt. The Jetson T4000 at 90 W TDP delivers 4.700 TFLOPS, which translates to about 52.2 GFLOPS per watt. The Radeon 840M is approximately 1.9 times more efficient per watt in raw FP32 compute, though this does not account for memory power, system overhead, or actual workload behavior, none of which are recorded in the database.

The Verdict

The data indicates two fundamentally different products. The AMD Radeon 840M is an integrated graphics processor designed for lightweight, portable systems where low power consumption and display output are essential. It supports mainstream graphics APIs and fits into the PCIe 4.0 ecosystem. The NVIDIA Jetson T4000 is a dedicated compute module with no display outputs, no graphics API support, and a much higher power envelope of 90 W, built around a 64 GB memory pool and tensor cores for accelerated compute tasks.

Users who need to render graphics, run DirectX-based applications, or operate within a 15 W power budget should select the Radeon 840M, as its API compatibility and low TDP are recorded advantages. Users who need high FP32 throughput, large dedicated memory, tensor core support, or high-bandwidth data movement should select the Jetson T4000, as its 4.700 TFLOPS, 273.2 GB/s bandwidth, and 64 tensor cores exceed the Radeon 840M's specifications in every compute-oriented category. The Jetson T4000's launch MSRP is 1,999 USD, which is a data point for cost comparison but no further pricing information is available.

The Jetson T4000 also offers a PCIe 5.0 x8 interface, which doubles the per-lane bandwidth of the Radeon 840M's PCIe 4.0 x8 connection. For data-intensive workloads that move large buffers between host and device, this interface advantage compounds the memory bandwidth lead. However, the Radeon 840M's boost clock of 2900 MHz exceeds the Jetson T4000's fixed 1530 MHz, which may narrow the gap in latency-sensitive or lightly threaded tasks, though no benchmark data confirms this.

The production status for both is listed as Active, and both have release dates in the database: the Radeon 840M on 2025-02-28 and the Jetson T4000 on 2026-01-04. The Radeon 840M's predecessor is Navi II IGP, while the Jetson T4000's predecessor is Server Hopper, with the latter's successor listed as Server Rubin. These lineage details further separate the two: the Radeon 840M comes from the Navi III IGP (Strix Point Mobile) generation under the RDNA 3.5 architecture, while the Jetson T4000 is part of the Server Blackwell (Bxx) generation under the Blackwell architecture.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The NVIDIA Jetson T4000 delivers 4.700 TFLOPS FP32, which is higher than the AMD Radeon 840M's 1,484.8 GFLOPS.

Q: Does the AMD Radeon 840M support DirectX?

A: Yes, the Radeon 840M supports DirectX 12 Ultimate (12_2), along with OpenGL 4.6 and Vulkan 1.4. The Jetson T4000 lists N/A for all three APIs.

Q: How much memory does the Jetson T4000 have?

A: The Jetson T4000 has 64 GB of LPDDR5X memory on a 256-bit bus, providing 273.2 GB/s of bandwidth. The Radeon 840M uses system-shared memory with bandwidth listed as system dependent.

Q: What is the TDP of each GPU?

A: The AMD Radeon 840M has a TDP of 15 W, while the NVIDIA Jetson T4000 has a TDP of 90 W and a suggested PSU of 250 W.

Q: Does the Jetson T4000 have display outputs?

A: No, the Jetson T4000 lists no display outputs. The Radeon 840M's display outputs are portable-device dependent.

Q: Which GPU has tensor cores?

A: The NVIDIA Jetson T4000 includes 64 tensor cores. The AMD Radeon 840M has no tensor cores recorded in the database.

Architecture Differences

The AMD Radeon 840M uses the RDNA 3.5 architecture on a 4 nm process node, fabricated by TSMC. Its chip is called Krackan Point, and it belongs to the Navi III IGP (Strix Point Mobile) generation. The NVIDIA Jetson T4000 uses the Blackwell architecture on a 5 nm process node, also fabricated by TSMC, with the chip named GB10B and belonging to the Server Blackwell (Bxx) generation. The process node difference gives the Radeon 840M a smaller manufacturing geometry, which typically allows for lower power consumption at equivalent complexity, though the actual transistor counts are unknown for both.

The Radeon 840M features 256 shading units, 16 texture mapping units, 8 raster output units, and 4 ray tracing cores. The Jetson T4000 features 1536 shading units, 48 texture mapping units, 16 raster output units, 12 ray tracing cores, and 64 tensor cores. The Jetson T4000 also has a larger die size at 391 mm², while the Radeon 840M's die size is unknown. The Jetson T4000's shading unit count is six times higher, and its texture mapping units are three times higher, indicating a wider execution architecture.

Memory architecture differs fundamentally. The Radeon 840M uses system-shared memory, meaning it borrows from the host's main memory, with the bus width, type, and bandwidth all listed as system shared or system dependent. The Jetson T4000 has 64 GB of dedicated LPDDR5X memory on a 256-bit bus with a fixed 273.2 GB/s bandwidth, running at 1067 MHz with 8.5 Gbps effective speed. This dedicated memory pool is a key architectural distinction, as it isolates the GPU from host memory contention.

The API support also differs. The Radeon 840M supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The Jetson T4000 lists N/A for DirectX, OpenGL, and Vulkan, confirming that its architecture targets compute workloads rather than graphics rendering.

Specification Differences

The two GPUs differ across nearly every recorded specification field. The Radeon 840M uses a 400 MHz base clock and a 2900 MHz boost clock, while the Jetson T4000 runs at a fixed 1530 MHz for both base and boost. The Radeon 840M's memory is system shared, while the Jetson T4000 has 64 GB of LPDDR5X with a 256-bit bus and 273.2 GB/s bandwidth.

The Radeon 840M has 256 shading units, 16 TMUs, 8 ROPs, and 4 RT cores, with no tensor cores. The Jetson T4000 has 1536 shading units, 48 TMUs, 16 ROPs, 12 RT cores, and 64 tensor cores. Pixel rate is 23.20 GPixel/s for the Radeon 840M versus 24.48 GPixel/s for the Jetson T4000. Texture rate is 46.40 GTexel/s versus 73.44 GTexel/s. FP32 performance is 1,484.8 GFLOPS versus 4.700 TFLOPS, and FP16 performance is identical to FP32 for both at a 1:1 ratio.

TDP is 15 W for the Radeon 840M and 90 W for the Jetson T4000. The Jetson T4000 has a suggested PSU of 250 W, while the Radeon 840M has no suggested PSU. Both use IGP slot width and have no power connectors. The bus interface is PCIe 4.0 x8 for the Radeon 840M and PCIe 5.0 x8 for the Jetson T4000. Display outputs are portable-device dependent for the Radeon 840M and none for the Jetson T4000. The process node is 4 nm versus 5 nm, die size is unknown versus 391 mm², and dimensions are unlisted versus 87 mm x 100 mm x 15 mm. The Radeon 840M has no launch MSRP, while the Jetson T4000 has a launch MSRP of 1,999 USD.