AMD Radeon 820M vs Intel Arc Pro B70 Comparison

Where Each One Wins

The AMD Radeon 820M and Intel Arc Pro B70 occupy entirely different segments of the GPU market, and the recorded data shows no overlap in their intended workloads. The Radeon 820M is an integrated graphics processor (IGP) built for portable devices, drawing just 15 W and sharing system memory. The Arc Pro B70 is a dual-slot, add-in professional graphics card with 32 GB of dedicated GDDR6 memory and a 230 W thermal design power. There are no head-to-head benchmark entries in the database, and neither part has a recorded average benchmark score, so the win split is defined by architectural capability rather than measured frame rates.

The Radeon 820M wins in efficiency and integration. Its 4 nm process node from TSMC, coupled with a 15 W TDP and no power connectors, makes it suitable for thin-and-light laptops where space and thermal headroom are scarce. The IGP form factor means it occupies no expansion slot, uses PCIe 4.0 x8, and relies entirely on system memory, which keeps the bill of materials minimal. For basic display output, media playback, and light 3D acceleration, the 820M delivers a functional experience without requiring a discrete power delivery circuit.

The Arc Pro B70 wins decisively in raw compute, memory bandwidth, and professional rendering throughput. Its 22.94 TFLOPS of FP32 performance is orders of magnitude above the 820M's 716.8 GFLOPS. The 608.0 GB/s of memory bandwidth, fed by a 256-bit bus and 32 GB of GDDR6, supports large datasets and high-resolution textures that the 820M cannot address due to its system-shared memory constraint. The Arc Pro B70 also brings 32 ray tracing cores versus the 820M's 2, along with double the shading units, texture mapping units, and render output units at 4096, 256, and 128 respectively, compared to 128, 8, and 4.

The Arc Pro B70's display outputs are fixed at 1x HDMI 2.1a and 3x DisplayPort 2.1, whereas the 820M's outputs are listed as portable device dependent, meaning the motherboard or laptop manufacturer decides connectivity. The Arc Pro B70 is also the only one with a launch MSRP of 949 USD, which signals a professional workstation positioning. The 820M has no launch MSRP recorded, consistent with its role as an integrated component sold as part of a system rather than as a standalone product.

FAQ

Q: What is the performance gap in raw FP32 compute between the two?

A: The Arc Pro B70 delivers 22.94 TFLOPS of FP32 performance, while the Radeon 820M delivers 716.8 GFLOPS. The Arc Pro B70 is roughly 32 times faster in this metric, reflecting its discrete, high-power design versus the 820M's integrated, low-power architecture.

Q: How do their memory subsystems compare?

A: The Arc Pro B70 uses 32 GB of GDDR6 on a 256-bit bus with 608.0 GB/s of bandwidth. The Radeon 820M uses system-shared memory with no dedicated size, type, bus width, or bandwidth figures; its bandwidth is listed as system dependent.

Q: Which GPU supports ray tracing?

A: Both support ray tracing, but with vastly different hardware resources. The Arc Pro B70 has 32 ray tracing cores, while the Radeon 820M has 2. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What are the physical and power requirements of each?

A: The Radeon 820M is an IGP with a 15 W TDP, no power connectors, and no expansion slot occupancy. The Arc Pro B70 is a dual-slot card measuring 267 mm by 110 mm by 39 mm, requires a 1x 8-pin power connector, has a 230 W TDP, and a suggested PSU of 550 W.

Q: What is the release timeline for these products?

A: The Radeon 820M was released on 2025-02-28 and is listed as active in production. The Intel Arc Pro B70 has a release date of 2026-03-25, and its production status is not recorded.

Q: Which card has more texture and pixel throughput?

A: The Arc Pro B70 achieves 716.8 GTexel/s and 358.4 GPixel/s. The Radeon 820M achieves 22.40 GTexel/s and 11.20 GPixel/s. The Arc Pro B70 is 32 times faster in texture rate and 32 times faster in pixel rate.

Head-to-Head Benchmarks

The database contains no direct benchmark entries comparing the Radeon 820M and the Arc Pro B70. However, the recorded specification data allows for a direct quantitative comparison across every compute metric that matters.

The largest single gap is in FP32 compute. The Arc Pro B70's 22.94 TFLOPS is exactly 32 times the 820M's 716.8 GFLOPS. This ratio repeats across texture fill rate and pixel fill rate: 716.8 GTexel/s versus 22.40 GTexel/s, and 358.4 GPixel/s versus 11.20 GPixel/s. The consistency of the 32x multiple is not coincidental; the Arc Pro B70 has 32 times the shading units (4096 vs 128), 32 times the TMUs (256 vs 8), and 32 times the ROPs (128 vs 4). The architecture scales these units in lockstep, so any shader-bound workload will see a 32-fold throughput advantage for the Intel part.

The FP16 comparison is less uniform. The Arc Pro B70 achieves 45.88 TFLOPS with a 2:1 FP16 to FP32 ratio, while the Radeon 820M achieves 716.8 GFLOPS with a 1:1 ratio. This gives the Arc Pro B70 a 64x advantage in FP16 workloads, because its architecture doubles the rate for half-precision while the AMD part does not. For AI inference or compute tasks that leverage FP16, the Intel card is disproportionately faster than the raw FP32 gap would suggest.

Ray tracing hardware shows a 16x difference: 32 cores on the Arc Pro B70 versus 2 on the Radeon 820M. This is a smaller multiple than the shader count, but still represents a categorical difference in ray tracing capability. The 820M's 2 RT cores are sufficient for basic effects at low resolutions, while the Arc Pro B70 can sustain ray-traced workloads across professional visualization scenarios.

Memory bandwidth is the most extreme divergence. The Arc Pro B70's 608.0 GB/s is a fixed, dedicated figure. The Radeon 820M's bandwidth is listed as system dependent, with no number assigned. In practical terms, the Intel card's 256-bit GDDR6 interface provides predictable, high-throughput access to 32 GB of VRAM, whereas the AMD IGP competes with the CPU for the same system memory channels. The Arc Pro B70's memory clock is 2375 MHz (19 Gbps effective), while the 820M's memory clock is listed as system shared.

Clock speeds tell a nuanced story. Both parts boost to 2800 MHz, but the base clocks differ substantially: the Radeon 820M runs at 400 MHz base, while the Arc Pro B70 runs at 2280 MHz base. The 820M's low base clock reflects its power-saving design; it only reaches higher clocks under bursty, short-duration loads. The Arc Pro B70's high base clock means sustained performance is available without relying on boost headroom.

Specification Differences

The core specification differences are stark and can be summarized as follows:

• Shading Units: 128 (AMD) vs 4096 (Intel)
• TMUs: 8 (AMD) vs 256 (Intel)
• ROPs: 4 (AMD) vs 128 (Intel)
• Ray Tracing Cores: 2 (AMD) vs 32 (Intel)
• FP32: 716.8 GFLOPS (AMD) vs 22.94 TFLOPS (Intel)
• FP16: 716.8 GFLOPS (AMD) vs 45.88 TFLOPS (Intel)
• Pixel Rate: 11.20 GPixel/s (AMD) vs 358.4 GPixel/s (Intel)
• Texture Rate: 22.40 GTexel/s (AMD) vs 716.8 GTexel/s (Intel)
• TDP: 15 W (AMD) vs 230 W (Intel)
• Memory: System Shared (AMD) vs 32 GB GDDR6 (Intel)
• Memory Bus: System Shared (AMD) vs 256 bit (Intel)
• Memory Bandwidth: System Dependent (AMD) vs 608.0 GB/s (Intel)
• Slot Width: IGP (AMD) vs Dual-slot (Intel)
• Power Connectors: None (AMD) vs 1x 8-pin (Intel)
• Suggested PSU: Not listed (AMD) vs 550 W (Intel)
• Bus Interface: PCIe 4.0 x8 (AMD) vs PCIe 5.0 x16 (Intel)
• Display Outputs: Portable Device Dependent (AMD) vs 1x HDMI 2.1a, 3x DisplayPort 2.1 (Intel)
• Dimensions: Not listed (AMD) vs 267 mm x 110 mm x 39 mm (Intel)
• Process Node: 4 nm (AMD) vs 5 nm (Intel)
• Die Size: Unknown (AMD) vs 368 mm² (Intel)
• Release Date: 2025-02-28 (AMD) vs 2026-03-25 (Intel)
• Launch MSRP: None (AMD) vs 949 USD (Intel)

Both GPUs share the same DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4 API support, and both use TSMC as the foundry.

Architecture Differences

The AMD Radeon 820M is built on RDNA 3.5 architecture, belonging to the Navi III IGP generation for Strix Point Mobile, and uses the Krackan Point 2 chip. The Intel Arc Pro B70 uses Xe2-HPG architecture, belonging to the Battlemage (Pro Series) generation, with the BMG-G31 chip. These are fundamentally different design philosophies: RDNA 3.5 is optimized for power efficiency in mobile integrated graphics, while Xe2-HPG is optimized for throughput in discrete professional cards.

The 820M uses a 4 nm process node versus the Arc Pro B70's 5 nm node. Both are fabricated by TSMC, but the smaller node gives the AMD part a density advantage for its transistor budget, though transistor counts are unknown for both. The Intel chip has a recorded die size of 368 mm², while the AMD die size is unknown.

Clock behavior differs meaningfully. The AMD part has a base clock of 400 MHz and a boost of 2800 MHz, a 7x ratio that allows aggressive power gating at idle. The Intel part has a base clock of 2280 MHz and the same 2800 MHz boost, a much tighter range that keeps the GPU consistently near its maximum frequency when powered on.

FP16 execution differs: the Radeon 820M runs FP16 at a 1:1 ratio with FP32, meaning no dedicated half-precision acceleration. The Arc Pro B70 runs FP16 at a 2:1 ratio, doubling throughput for half-precision workloads. This indicates the Intel architecture includes dedicated FP16 datapaths, while the AMD part likely uses rate-limited shader execution.

The API surface is identical between the two, both supporting DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The memory architecture diverges completely: the 820M uses system shared memory with no dedicated VRAM, while the Arc Pro B70 uses 32 GB of GDDR6 on a 256-bit bus with a 2375 MHz memory clock and 608.0 GB/s bandwidth.

The predecessor field lists the Radeon 820M's predecessor as Navi II IGP, while the Arc Pro B70 has no recorded predecessor. Neither part has a recorded successor.

The Verdict

The data supports a clear verdict: these are not competing products. The AMD Radeon 820M is an integrated GPU designed for portable devices, evidenced by its 15 W TDP, IGP slot width, no power connectors, and system-dependent display outputs. The Intel Arc Pro B70 is a 230 W, dual-slot professional discrete GPU with a 949 USD launch MSRP, a 550 W suggested PSU, and fixed display outputs.

For workloads that require maximum compute throughput, the Arc Pro B70 is the only choice. Its 32x advantage in shading units, texture rate, pixel rate, and FP32 compute is categorical. The 64x advantage in FP16 throughput, driven by the 2:1 ratio, makes it disproportionately stronger for half-precision compute tasks. The 32 GB of GDDR6 with 608.0 GB/s of bandwidth enables working sets that the 820M's system-shared memory cannot accommodate. The 32 ray tracing cores provide professional-grade RT capability that 2 cores cannot match.

For workloads that require minimal power draw and physical integration, the Radeon 820M is the only choice. Its 15 W TDP allows passive or low-power cooling solutions, its IGP form factor eliminates the need for a PCIe slot, and its system-shared memory removes the cost of discrete VRAM. The 4 nm process node provides a manufacturing advantage, and the 400 MHz base clock allows deep power-saving states when idle.

The 50th percentile ranking versus all GPUs for both parts indicates they sit at the median of the database's tracked hardware, but this percentile does not account for the vastly different thermal and power envelopes. The Arc Pro B70's 32x raw throughput advantage comes with a 15x TDP increase (230 W vs 15 W), which is a reasonable trade for a desktop workstation. The Radeon 820M's efficiency profile is appropriate for battery-powered systems where sustained 2800 MHz boost is rare and burst performance is the norm.

A system builder needing professional rendering, large model inference, or multi-display output should select the Arc Pro B70. A laptop designer needing basic graphics with minimal power and space requirements should select the Radeon 820M. The data does not support any scenario where these two parts are interchangeable.