AMD Radeon RX 6450M vs Intel Arc Pro B70 Comparison

FAQ

Q: What are the core architectural differences between the AMD Radeon RX 6450M and the Intel Arc Pro B70?

A: The RX 6450M uses AMD's RDNA 2.0 architecture on a 6 nm TSMC process with the Navi 24 chip, while the Arc Pro B70 uses Intel's Xe2-HPG architecture on a 5 nm TSMC process with the BMG-G31 chip. The Intel part has a much larger die at 368 mm² versus 107 mm².

Q: How do the memory subsystems compare?

A: The RX 6450M has 4 GB of GDDR6 on a 64-bit bus with 128.0 GB/s bandwidth. The Arc Pro B70 has 32 GB of GDDR6 on a 256-bit bus with 608.0 GB/s bandwidth, which is 4.75 times more bandwidth.

Q: What is the difference in shading resources?

A: The RX 6450M has 768 shading units, 48 texture mapping units, and 32 ROPs. The Arc Pro B70 has 4096 shading units, 256 TMUs, and 128 ROPs, representing a 5.33x increase in shaders and a 4x increase in both TMUs and ROPs.

Q: How do clock speeds differ between the two?

A: The RX 6450M has a base clock of 2000 MHz and a boost clock of 2460 MHz. The Arc Pro B70 has a base clock of 2280 MHz and a boost clock of 2800 MHz, which is 340 MHz higher at boost.

Q: What are the power and physical requirements?

A: The RX 6450M is an integrated graphics processor (IGP) with a 50 W TDP and no power connectors. The Arc Pro B70 is a dual-slot card with a 230 W TDP, requires one 8-pin power connector, and has a suggested PSU of 550 W.

Q: What is the difference in ray tracing hardware?

A: The RX 6450M has 12 ray tracing cores, while the Arc Pro B70 has 32 ray tracing cores, a 2.67x difference in dedicated RT hardware.

Architecture Differences

The AMD Radeon RX 6450M and Intel Arc Pro B70 represent two fundamentally different design philosophies within the same performance percentile. The RX 6450M is built on AMD's RDNA 2.0 architecture using the Navi 24 chip, produced on TSMC's 6 nm process. The die measures 107 mm² and contains 5,400 million transistors, yielding a transistor density of 50.5 million per square millimeter. This is a compact, power-efficient design aimed at mobile integration.

The Intel Arc Pro B70 uses the Xe2-HPG architecture with the BMG-G31 chip, built on TSMC's 5 nm process. The die is substantially larger at 368 mm², more than three times the area of the Navi 24. Intel does not disclose transistor count for this chip, but the physical size alone indicates a much more complex design. The 5 nm process node is one generation ahead of the 6 nm used by AMD, though both come from the same foundry.

Shader resource allocation shows the scale of difference. The RX 6450M fields 768 shading units, 48 TMUs, and 32 ROPs. The Arc Pro B70 fields 4096 shading units, 256 TMUs, and 128 ROPs. This 5.33x shader advantage and 4x advantage in both TMUs and ROPs allows the Intel part to process significantly more geometry and texture data per clock cycle.

Ray tracing hardware also differs. The RX 6450M includes 12 RT cores, while the Arc Pro B70 includes 32 RT cores. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API compatibility is identical. The Intel card's larger RT core count suggests stronger ray tracing throughput, assuming similar per-core efficiency.

Memory architecture represents another major divergence. The RX 6450M uses a 64-bit memory bus with 4 GB of GDDR6, while the Arc Pro B70 uses a 256-bit bus with 32 GB of GDDR6. The memory clock differs as well: the AMD part runs at 2000 MHz (16 Gbps effective), while the Intel part runs at 2375 MHz (19 Gbps effective). Combined with the wider bus, the Intel card achieves 608.0 GB/s bandwidth versus 128.0 GB/s.

The bus interface also differs significantly. The RX 6450M uses PCIe 4.0 x4, while the Arc Pro B70 uses PCIe 5.0 x16. This gives the Intel card substantially more host interface bandwidth, which can matter for data transfer-heavy workloads.

Head-to-Head Benchmarks

The recorded data contains no direct head-to-head benchmark results between these two GPUs, and both have no individual benchmark scores in the database. However, the specification differences provide a basis for comparing theoretical throughput limits.

In raw compute, the Arc Pro B70 delivers 22.94 TFLOPS of FP32 performance versus 3.779 TFLOPS for the RX 6450M. This is a 6.07x advantage for the Intel card. For FP16 compute, the B70 delivers 45.88 TFLOPS versus 7.557 TFLOPS for the AMD part, a 6.07x difference as well. Both use a 2:1 ratio for FP16 to FP32.

Pixel throughput favors the Intel part substantially. The Arc Pro B70 achieves a pixel rate of 358.4 GPixel/s, while the RX 6450M achieves 78.72 GPixel/s. This 4.55x difference reflects the combination of higher ROP count and higher clock speeds. Texture rate tells a similar story: 716.8 GTexel/s for the B70 versus 118.1 GTexel/s for the RX 6450M, a 6.07x advantage.

Clock speeds favor the Intel part as well. The B70 runs at 2280 MHz base and 2800 MHz boost, while the RX 6450M runs at 2000 MHz base and 2460 MHz boost. The 340 MHz boost advantage gives the Intel card a 13.8% higher peak clock, though the architectural differences dwarf this effect.

Memory bandwidth is where the gap is most pronounced. The B70's 608.0 GB/s is 4.75 times the RX 6450M's 128.0 GB/s. For memory-intensive workloads such as large texture sets or compute tasks with high data reuse, this bandwidth advantage can be decisive.

The RX 6450M has no wins recorded in the head-to-head data, and the Arc Pro B70 also has no wins recorded, since no benchmarks pairs exist. The percentile ranking for both is 50, placing them at the median of all GPUs in the database, though this ranking is based on no actual benchmark scores for either card.

Specification Differences

The two cards differ across nearly every measurable specification. Process node: 6 nm for the RX 6450M, 5 nm for the Arc Pro B70. Die size: 107 mm² versus 368 mm². Transistor count: 5,400 million for AMD, unknown for Intel. Transistor density: 50.5M per mm² for AMD, not disclosed for Intel.

Clock speeds: base 2000 MHz versus 2280 MHz, boost 2460 MHz versus 2800 MHz. The RX 6450M lists a game clock of 2220 MHz, while the Arc Pro B70 does not list a game clock. Memory clock: 2000 MHz (16 Gbps effective) versus 2375 MHz (19 Gbps effective).

Memory configuration: 4 GB GDDR6 on a 64-bit bus versus 32 GB GDDR6 on a 256-bit bus. Bandwidth: 128.0 GB/s versus 608.0 GB/s. Shading units: 768 versus 4096. TMUs: 48 versus 256. ROPs: 32 versus 128. RT cores: 12 versus 32.

Pixel rate: 78.72 GPixel/s versus 358.4 GPixel/s. Texture rate: 118.1 GTexel/s versus 716.8 GTexel/s. FP32: 3.779 TFLOPS versus 22.94 TFLOPS. FP16: 7.557 TFLOPS versus 45.88 TFLOPS.

TDP: 50 W versus 230 W. Slot width: IGP versus dual-slot. Power connectors: none versus one 8-pin. Suggested PSU: not listed versus 550 W. Bus interface: PCIe 4.0 x4 versus PCIe 5.0 x16.

Display outputs: portable device dependent for the RX 6450M, versus 1x HDMI 2.1a and 3x DisplayPort 2.1 for the Arc Pro B70. Dimensions: the RX 6450M has no listed dimensions, while the B70 measures 267 mm in length, 110 mm in height, and 39 mm in width.

Release dates differ by more than three years: the RX 6450M launched on January 3, 2023, while the Arc Pro B70 launches on March 25, 2026. The AMD card lists Polaris Mobile as its predecessor, while the Intel card has no predecessor listed. Production status is active for AMD, while Intel's status is not listed.

The Verdict

The data describes two GPUs with almost no overlap in target use cases. The RX 6450M is a 50 W integrated graphics solution with 4 GB of memory, designed for portable devices where power draw and physical footprint are primary constraints. The Arc Pro B70 is a 230 W dual-slot add-in card with 32 GB of memory, a 550 W suggested PSU, and full-size dimensions.

Performance deltas are stark. The B70 delivers 6.07x the FP32 compute, 4.55x the pixel rate, 6.07x the texture rate, and 4.75x the memory bandwidth. It also has 2.67x the RT cores and 5.33x the shading units. There is no benchmark category where the RX 6450M matches the Intel card on raw throughput.

The RX 6450M's advantages are limited to power efficiency and integration. Its 50 W TDP is 180 W lower than the B70's 230 W TDP. It requires no power connectors, fits in an IGP form factor, and has no listed dimensions, meaning it can be integrated directly into portable devices. The B70 requires a dual-slot chassis, one 8-pin connector, and a 550 W PSU.

Neither card has recorded benchmark scores, and neither has any head-to-head wins. The percentile ranking of 50 for both is identical, but this reflects the absence of data rather than equivalence in performance.

Where Each One Wins

The Arc Pro B70 wins in every performance-oriented category. Compute workloads that scale with FP32 or FP16 throughput will favor the Intel card by a 6.07x margin. Rendering tasks that depend on pixel fill rate will favor it by 4.55x. Texture-heavy workloads will favor it by 6.07x. Memory-bound applications will favor it by 4.75x due to the wider bus and faster memory clock.

The RX 6450M wins in power-constrained environments. Its 50 W TDP makes it suitable for devices with limited thermal and power budgets, such as thin-and-light laptops or embedded systems. Its IGP form factor requires no additional chassis space, no power connector, and no PSU upgrade. The absence of a suggested PSU rating indicates it draws power from the host system rather than requiring dedicated supply.

For display output, the B70 offers 1x HDMI 2.1a and 3x DisplayPort 2.1, while the RX 6450M's outputs are portable device dependent. The Intel card is clearly positioned for multi-monitor workstation setups, while the AMD card relies on the host device's display infrastructure.

The 32 GB memory capacity of the B70 versus 4 GB on the RX 6450M matters for large datasets. Workloads that exceed 4 GB of video memory will fail or spill to system memory on the AMD card, while the Intel card has headroom for substantial datasets. The 256-bit bus versus 64-bit bus reinforces this difference.

The RX 6450M's 6 nm process and 107 mm² die make it a compact, efficient component. The B70's 5 nm process and 368 mm² die make it a large, power-hungry component. The transistor density of 50.5M per mm² for AMD suggests a dense design, while Intel does not disclose density for its chip.

In summary, the RX 6450M is for systems where power and space are the limiting factors. The Arc Pro B70 is for systems where compute, memory, and bandwidth are the priorities. The recorded data shows no scenario where the AMD card outperforms the Intel card on raw specifications.