AMD Radeon 820M vs NVIDIA RTX PRO 6000 Blackwell Comparison

The Verdict

The data presents two graphics solutions at opposite extremes of the market. The AMD Radeon 820M is an integrated graphics processor designed for portable devices, operating within a 15 W power envelope and using system shared memory. The NVIDIA RTX PRO 6000 Blackwell is a professional workstation card with 96 GB of dedicated GDDR7 memory, a 600 W power draw, and a dual-slot cooler. The recorded benchmark data shows the RTX PRO 6000 Blackwell achieving a score of 16408 in the 3DMark Steel Nomad DX12 test, placing it in the 59th percentile of all GPUs. The Radeon 820M has no benchmark scores recorded in the database, and its percentile sits at 50 with an average benchmark score of zero. The data indicates the RTX PRO 6000 Blackwell is the only one of the two with measurable performance data, making it the definitive choice for any workload requiring verified graphics throughput. The Radeon 820M, by contrast, is suited for basic display output in a portable system where low power consumption is the priority.

Architecture Differences

The AMD Radeon 820M uses the RDNA 3.5 architecture built on a 4 nm process at TSMC. It belongs to the Navi III IGP generation for Strix Point Mobile, with the chip designated as Krackan Point 2. It has 128 shading units, 8 texture mapping units, and 4 raster operation pipelines. The integrated GPU also includes 2 ray tracing cores. Its base clock is 400 MHz with a boost clock of 2800 MHz. The memory subsystem is entirely system shared, with the bus width and bandwidth dependent on the host system. It supports PCIe 4.0 x8 and has no power connectors, reflecting its integrated nature.

The NVIDIA RTX PRO 6000 Blackwell uses the Blackwell 2.0 architecture on a 5 nm process at TSMC. It is built on the GB202 chip with 92,200 million transistors on a 750 mm² die, giving a transistor density of 122.9 million per square millimeter. It has 24,064 shading units, 752 texture mapping units, and 192 raster operation pipelines. It includes 188 ray tracing cores and 752 tensor cores. The base clock is 1590 MHz with a boost clock of 2617 MHz. Memory is 96 GB of GDDR7 on a 512-bit bus, providing 1.79 TB/s of bandwidth. The card connects via PCIe 5.0 x16 and uses a single 16-pin power connector, with a suggested power supply of 1000 W. It measures 304 mm in length, 137 mm in height, and 40 mm in width.

Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The RTX PRO 6000 Blackwell provides four DisplayPort 2.1b outputs, while the Radeon 820M's display outputs are dependent on the portable device it is integrated into.

FAQ

Q: Which GPU has a higher boost clock?

A: The AMD Radeon 820M has a boost clock of 2800 MHz, while the NVIDIA RTX PRO 6000 Blackwell has a boost clock of 2617 MHz.

Q: How much memory does each GPU have?

A: The NVIDIA RTX PRO 6000 Blackwell has 96 GB of GDDR7 memory on a 512-bit bus. The AMD Radeon 820M uses system shared memory, with its capacity and bandwidth dependent on the host system.

Q: What is the power consumption difference?

A: The AMD Radeon 820M has a TDP of 15 W. The NVIDIA RTX PRO 6000 Blackwell has a TDP of 600 W and requires a 1000 W power supply.

Q: Which GPU has more shading units?

A: The NVIDIA RTX PRO 6000 Blackwell has 24,064 shading units. The AMD Radeon 820M has 128 shading units.

Q: Does the Radeon 820M have tensor cores?

A: No tensor core count is listed for the AMD Radeon 820M. The NVIDIA RTX PRO 6000 Blackwell has 752 tensor cores.

Q: What is the release timeline for these products?

A: The AMD Radeon 820M was released on 2025-02-28. The NVIDIA RTX PRO 6000 Blackwell was released on 2025-03-17.

Specification Differences

The two GPUs differ in nearly every measurable specification. The AMD Radeon 820M uses a 4 nm process, while the NVIDIA RTX PRO 6000 Blackwell uses a 5 nm process. The Radeon 820M has 128 shading units, 8 TMUs, and 4 ROPs. The RTX PRO 6000 Blackwell has 24,064 shading units, 752 TMUs, and 192 ROPs. Ray tracing cores number 2 on the AMD part and 188 on the NVIDIA part. Tensor cores are absent from the AMD specifications and number 752 on the NVIDIA card.

Clock speeds differ in an interesting way: the Radeon 820M has a higher boost clock at 2800 MHz compared to 2617 MHz, but the base clock is far lower at 400 MHz versus 1590 MHz. Memory configurations are entirely different. The Radeon 820M uses system shared memory with system dependent bandwidth. The RTX PRO 6000 Blackwell uses 96 GB of GDDR7 with a 512-bit bus and 1.79 TB/s of bandwidth.

Pixel and texture rates show the NVIDIA card's advantage. The RTX PRO 6000 Blackwell delivers 502.5 GPixel/s and 1,968.0 GTexel/s. The Radeon 820M delivers 11.20 GPixel/s and 22.40 GTexel/s. FP32 compute is 126.0 TFLOPS for the NVIDIA card versus 716.8 GFLOPS for the AMD integrated GPU. Both list FP16 at a 1:1 ratio with FP32. Power requirements are 600 W with a 1000 W suggested PSU for the NVIDIA card, versus 15 W with no power connectors for the AMD IGP. The NVIDIA card occupies a dual-slot form factor at 304 mm length, while the AMD part is an IGP. Bus interfaces differ as well: PCIe 5.0 x16 for NVIDIA, PCIe 4.0 x8 for AMD.

Head-to-Head Benchmarks

The head-to-head benchmark data between these two GPUs is empty in the database. No direct comparison tests have been recorded. The only available benchmark result is for the NVIDIA RTX PRO 6000 Blackwell, which scored 16408 in 3DMark Steel Nomad DX12. This single score places it in the 59th percentile of all GPUs. Its nearest rivals show how this score compares: the AMD Radeon PRO W7500 scored 16415 with a delta of 0 percent, the AMD Radeon RX 5700 XT scored 16361 with a delta of 0.3 percent, the AMD Radeon Pro 5600M scored 16351 with a delta of 0.4 percent, and the NVIDIA GeForce RTX 5090 D V2 scored 16504 with a delta of -0.6 percent. The RTX PRO 6000 Blackwell sits within a narrow band around these cards, essentially tied with the Radeon PRO W7500 and less than one percent away from the other three rivals. The AMD Radeon 820M has no benchmark records, so no comparative performance statements can be made from the database.

Where Each One Wins

The NVIDIA RTX PRO 6000 Blackwell wins in every category where recorded data exists. It has a verified 3DMark Steel Nomad DX12 score of 16408, placing it in the 59th percentile. It provides professional workstation features including 96 GB of GDDR7 memory, 752 tensor cores, 188 ray tracing cores, and a 1.79 TB/s memory bandwidth. Its FP32 compute of 126.0 TFLOPS and texture rate of 1,968.0 GTexel/s make it suitable for compute-heavy and graphics-intensive workloads. Four DisplayPort 2.1b outputs support multi-display professional setups. The launch MSRP is 8,565 USD.

The AMD Radeon 820M wins in power efficiency and integration. Its 15 W TDP requires no power connectors and produces minimal heat, making it suitable for portable devices. The higher boost clock of 2800 MHz is a notable specification, though it does not translate into recorded performance advantages. The use of system shared memory eliminates the need for dedicated VRAM, reducing cost and complexity in a mobile platform. Its 4 nm process node is smaller than the 5 nm node used by the NVIDIA card, which contributes to its low power profile. For a portable device needing basic graphics output, the Radeon 820M is the appropriate choice. For any workload requiring verified performance, professional rendering, or large memory capacity, the RTX PRO 6000 Blackwell is the only option with supporting data.