AMD Radeon 820M vs NVIDIA RTX A1000 Comparison

The Verdict

The recorded data presents a decisive matchup: the NVIDIA RTX A1000 is the clear performance leader, while the AMD Radeon 820M serves a fundamentally different role as an integrated graphics processor. The RTX A1000 sits at the 79th percentile of all GPUs in the database, whereas the Radeon 820M lands at the 50th percentile, a gap that reflects their divergent purposes. The RTX A1000 delivers workstation-class compute with 6.737 TFLOPS of FP32 throughput, 8 GB of dedicated GDDR6 memory, and a 192.0 GB/s memory bandwidth. The Radeon 820M, by contrast, is an IGP with 716.8 GFLOPS, shared system memory, and a 15 W TDP, making it suitable for lightweight portable devices rather than demanding professional workloads.

The RTX A1000 should be selected by users who need a dedicated, single-slot workstation card with substantial compute resources, ray tracing capability, and Tensor Core acceleration. The Radeon 820M is appropriate for compact, power-constrained systems where integrated graphics are the only option and performance expectations remain modest. The data shows no benchmark overlap: the RTX A1000 has recorded scores in three tests, while the Radeon 820M has no entries in the database, reinforcing that these products target entirely different segments.

Where Each One Wins

The RTX A1000 wins in every measurable category where data exists. Its 3DMark Steel Nomad DX12 score of 969, Geekbench OpenCL score of 52078, and Geekbench Vulkan score of 49574 establish a baseline of dedicated GPU performance. The Radeon 820M has zero recorded benchmark scores, so its wins are limited to efficiency and form factor. The 820M consumes 15 W and requires no power connectors, while the RTX A1000 draws 50 W, still connector-free but suggesting a 250 W PSU. The 820M is an IGP with no slot width, while the RTX A1000 is a single-slot card measuring 163 mm in length.

For workload distribution, the RTX A1000 dominates compute-heavy tasks: its 2304 shading units, 72 TMUs, 32 ROPs, 18 ray tracing cores, and 72 Tensor Cores vastly outnumber the 820M's 128 shading units, 8 TMUs, 4 ROPs, and 2 ray tracing cores. The 820M's 22.40 GTexel/s texture rate and 11.20 GPixel/s pixel rate trail the RTX A1000's 105.3 GTexel/s and 46.78 GPixel/s, respectively. The RTX A1000 also wins on memory: 8 GB GDDR6 at 128-bit with 192.0 GB/s versus shared system memory with system-dependent bandwidth.

Architecture Differences

The two GPUs come from different architectural generations and foundries. The Radeon 820M uses RDNA 3.5, built on a 4 nm TSMC process, and belongs to the Navi III IGP (Strix Point Mobile) generation. The RTX A1000 uses Ampere, built on an 8 nm Samsung process, and belongs to the Workstation Ampere (Ax000) generation. The process node difference is significant: 4 nm versus 8 nm, which helps explain the 820M's lower power draw despite its integrated nature.

The RTX A1000's GA107 chip contains 8,700 million transistors on a 200 mm² die, with a transistor density of 43.5M per mm². The 820M's chip, Krackan Point 2, has unknown transistor counts and die size. Clock behavior differs substantially: the 820M has a 400 MHz base clock boosting to 2800 MHz, while the RTX A1000 runs at 727 MHz base and 1462 MHz boost. The 820M relies on system memory with no dedicated VRAM, while the RTX A1000 uses 1500 MHz 12 Gbps effective GDDR6.

Feature sets show both commonality and divergence. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The 820M has 2 ray tracing cores, while the RTX A1000 has 18. The RTX A1000 includes 72 Tensor Cores; the 820M lists none. The 820M's FP16 performance matches its FP32 at 716.8 GFLOPS (1:1), and the RTX A1000 does the same at 6.737 TFLOPS (1:1), indicating both handle FP16 at the same rate as FP32. The 820M uses PCIe 4.0 x8, and the RTX A1000 also uses PCIe 4.0 x8, so bus interface parity exists. Display outputs differ: the 820M is portable device dependent, while the RTX A1000 offers 4x mini-DisplayPort 1.4a.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The NVIDIA RTX A1000 delivers 6.737 TFLOPS, which is approximately 9.4 times the 716.8 GFLOPS of the AMD Radeon 820M.

Q: Does the Radeon 820M have dedicated memory?

A: No. The 820M uses system shared memory with system-dependent bandwidth, while the RTX A1000 has 8 GB of GDDR6 on a 128-bit bus with 192.0 GB/s bandwidth.

Q: What is the power consumption difference?

A: The Radeon 820M has a 15 W TDP, while the RTX A1000 has a 50 W TDP. The RTX A1000 lists a suggested PSU of 250 W; the 820M has no suggested PSU.

Q: Which GPU supports ray tracing?

A: Both support DirectX 12 Ultimate (12_2), which includes ray tracing. The 820M has 2 ray tracing cores, and the RTX A1000 has 18.

Q: How do their benchmark scores compare?

A: The RTX A1000 has recorded scores: 969 in 3DMark Steel Nomad DX12, 52078 in Geekbench OpenCL, and 49574 in Geekbench Vulkan, giving it an average of 34207. The Radeon 820M has no benchmark scores in the database.

Q: What are the physical form factor differences?

A: The Radeon 820M is an IGP with no slot width and no power connectors, while the RTX A1000 is a single-slot card measuring 163 mm in length and 69 mm in height, also with no power connectors.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark entries between these two GPUs, and the Radeon 820M has no benchmark scores at all. However, the RTX A1000's scores provide a reference point. Its 3DMark Steel Nomad DX12 result of 969 reflects a modern DirectX 12 workload, and its Geekbench scores are substantial: 52078 in OpenCL and 49574 in Vulkan. These figures place the RTX A1000 at the 79th percentile of all GPUs, with an average benchmark score of 34207.

The RTX A1000's nearest rivals in the database confirm its position. The NVIDIA RTX A2000 12 GB scores 34154, a delta of 0.2% over the A1000. The AMD Radeon RX 560 XT scores 34133, also 0.2% higher. The NVIDIA TITAN V scores 34355, which is 0.4% below the A1000's average. The AMD Radeon RX 480 scores 33997, 0.6% lower. These tight deltas indicate the RTX A1000 sits in a dense performance cluster, within 0.6% of all four nearest rivals, whether ahead or behind. The Radeon 820M, at the 50th percentile with no scores, does not appear in any rival comparison.

Specification Differences

The two GPUs differ across nearly every recorded specification. The Radeon 820M uses a 4 nm process from TSMC, while the RTX A1000 uses 8 nm from Samsung. The 820M's chip is Krackan Point 2, and the RTX A1000's is GA107. The 820M has 128 shading units, 8 TMUs, 4 ROPs, and 2 ray tracing cores. The RTX A1000 has 2304 shading units, 72 TMUs, 32 ROPs, and 18 ray tracing cores. The RTX A1000 also has 72 Tensor Cores; the 820M has none listed.

Clock speeds differ: the 820M runs at 400 MHz base and 2800 MHz boost, while the RTX A1000 runs at 727 MHz base and 1462 MHz boost. Memory configurations diverge completely: the 820M uses system shared memory with system-dependent bandwidth, while the RTX A1000 uses 8 GB GDDR6 at 1500 MHz 12 Gbps effective, on a 128-bit bus with 192.0 GB/s bandwidth. Pixel rate is 11.20 GPixel/s for the 820M versus 46.78 GPixel/s for the RTX A1000. Texture rate is 22.40 GTexel/s versus 105.3 GTexel/s. FP32 is 716.8 GFLOPS versus 6.737 TFLOPS, and FP16 matches those figures at 1:1 for both.

Power and physical specs differ: the 820M has a 15 W TDP and is an IGP, while the RTX A1000 has a 50 W TDP and is single-slot. The 820M has no power connectors and no suggested PSU; the RTX A1000 also has no power connectors but lists a suggested PSU of 250 W. The RTX A1000 measures 163 mm by 69 mm; the 820M has no dimensions. Display outputs: the 820M is portable device dependent, while the RTX A1000 provides 4x mini-DisplayPort 1.4a. Release dates differ: the 820M launched on 2025-02-28, and the RTX A1000 on 2024-04-15. The 820M's predecessor is Navi II IGP, and the RTX A1000's predecessor is Quadro Turing, with its successor listed as Workstation Ada.