AMD Radeon RX 6550S vs Intel Arc Pro B70 Comparison

The Verdict

The AMD Radeon RX 6550S and the Intel Arc Pro B70 occupy entirely different positions in the database. The RX 6550S is a 50 W integrated-class mobile part built on RDNA 2.0, while the Arc Pro B70 is a 230 W dual-slot desktop professional card built on Xe2-HPG. The recorded data shows a 4.7x difference in FP32 throughput (4.915 TFLOPS vs 22.94 TFLOPS), a 4.8x difference in memory bandwidth (128.0 GB/s vs 608.0 GB/s), and an 8x difference in memory capacity (4 GB vs 32 GB). The Arc Pro B70 also delivers a 4.7x higher pixel rate and texture rate. These are not competing products in any practical sense; the RX 6550S serves constrained mobile platforms, while the Arc Pro B70 targets professional workloads requiring large memory and high sustained throughput.

The RX 6550S is the only choice for systems with no power connectors, as it draws 50 W and uses the IGP slot width. The Arc Pro B70 requires a 550 W suggested power supply and a single 8-pin connector, which places it firmly outside the mobile segment. The data indicates the RX 6550S is for portable devices with integrated graphics, where its 4 GB GDDR6 on a 64 bit bus is sufficient for light rendering and compute tasks. The Arc Pro B70 is for desktop workstations needing 32 GB GDDR6 on a 256 bit bus, PCIe 5.0 x16 connectivity, and professional display outputs including 1x HDMI 2.1a and 3x DisplayPort 2.1.

Benchmark results indicate the Arc Pro B70 outperforms the RX 6550S by a wide margin across every measured throughput category. However, the RX 6550S has a significant advantage in power efficiency per the raw figures: it delivers 4.915 TFLOPS at 50 W, while the Arc Pro B70 delivers 22.94 TFLOPS at 230 W. The efficiency ratio favors the AMD part, but the absolute performance gap is decisive. The launch MSRP of the Arc Pro B70 is 949 USD, which the database records without further commentary.

Where Each One Wins

The RX 6550S wins in platform flexibility. It uses PCIe 4.0 x4, requires no external power connectors, and fits the IGP slot width. Its 6 nm process node from TSMC and 107 mm² die size with 5,400 million transistors produce a transistor density of 50.5M per mm², which is a compact implementation suitable for thin mobile systems. The Arc Pro B70, by contrast, measures 267 mm in length, 110 mm in height, and 39 mm in width, and its 368 mm² die is more than three times larger. The RX 6550S also has a lower base clock of 2000 MHz and boost clock of 2400 MHz, but its game clock of 2170 MHz shows it can sustain reasonable frequencies within its 50 W envelope.

The Arc Pro B70 wins in every raw compute and memory metric. Its 4096 shading units, 256 texture mapping units, and 128 ROPs dwarf the RX 6550S's 1024 shading units, 64 TMUs, and 32 ROPs. The Arc Pro B70 has 32 ray tracing cores versus 16 on the RX 6550S. Its FP32 throughput of 22.94 TFLOPS and FP16 throughput of 45.88 TFLOPS (2:1) are roughly 4.7x higher than the RX 6550S's 4.915 TFLOPS and 9.830 TFLOPS (2:1). The Arc Pro B70's memory system is also far superior: 32 GB GDDR6 at 2375 MHz with 19 Gbps effective speed, a 256 bit bus, and 608.0 GB/s bandwidth. The RX 6550S uses 4 GB GDDR6 at 2000 MHz with 16 Gbps effective speed on a 64 bit bus, yielding only 128.0 GB/s.

The Arc Pro B70 also wins in connectivity and interface bandwidth. It uses PCIe 5.0 x16, while the RX 6550S uses PCIe 4.0 x4. The Arc Pro B70 provides a dual-slot form factor with professional display outputs, whereas the RX 6550S's display outputs are portable device dependent. The Arc Pro B70's base clock of 2280 MHz and boost clock of 2800 MHz are both higher than the RX 6550S's corresponding clocks, and its memory clock of 2375 MHz exceeds the RX 6550S's 2000 MHz memory clock.

Architecture Differences

The RX 6550S uses the Navi 24 chip built on RDNA 2.0 architecture, part of the Navi Mobile generation from the RX 6000M series. It is manufactured on a 6 nm process at TSMC with 5,400 million transistors on a 107 mm² die. Its transistor density is 50.5M per mm². The chip supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The RX 6550S has 1024 shading units, 64 TMUs, 32 ROPs, and 16 ray tracing cores. Its predecessor is Polaris Mobile, and its production status is active. It was released on 2023-01-03.

The Arc Pro B70 uses the BMG-G31 chip built on Xe2-HPG architecture, part of the Battlemage Pro Series generation. It is manufactured on a 5 nm process at TSMC with a 368 mm² die size. Transistor count is not recorded in the database. The chip supports the same API list: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The Arc Pro B70 has 4096 shading units, 256 TMUs, 128 ROPs, and 32 ray tracing cores. Its release date is recorded as 2026-03-25, and no predecessor or successor is listed.

The process node difference is one generation apart in the database: 6 nm for the RX 6550S versus 5 nm for the Arc Pro B70. The Arc Pro B70's die is 368 mm², which is 3.4x larger than the RX 6550S's 107 mm². The Arc Pro B70 also has a much larger memory bus: 256 bit versus 64 bit, and 8x the memory capacity. The power delivery requirements differ completely: the RX 6550S uses no power connectors and fits the IGP slot width, while the Arc Pro B70 uses a dual-slot design with one 8-pin power connector and a 550 W suggested power supply.

The memory clock rates also differ: the RX 6550S runs its GDDR6 at 2000 MHz with 16 Gbps effective speed, while the Arc Pro B70 runs its GDDR6 at 2375 MHz with 19 Gbps effective speed. The Arc Pro B70's memory bandwidth of 608.0 GB/s is 4.8x the RX 6550S's 128.0 GB/s. Both cards support the same DirectX, OpenGL, and Vulkan versions, which means software compatibility at the API level is equivalent, but the underlying architectures are entirely different implementations.

FAQ

Q: What is the performance difference between the RX 6550S and the Arc Pro B70 in FP32 compute?

A: The Arc Pro B70 delivers 22.94 TFLOPS of FP32 throughput, while the RX 6550S delivers 4.915 TFLOPS. This is a 4.7x advantage for the Arc Pro B70.

Q: How much memory bandwidth does each card provide?

A: The RX 6550S provides 128.0 GB/s of bandwidth from 4 GB GDDR6 on a 64 bit bus. The Arc Pro B70 provides 608.0 GB/s of bandwidth from 32 GB GDDR6 on a 256 bit bus, which is 4.8x higher.

Q: What are the power requirements for each card?

A: The RX 6550S has a TDP of 50 W and uses no power connectors. The Arc Pro B70 has a TDP of 230 W and requires one 8-pin power connector, with a suggested power supply of 550 W.

Q: Which card supports ray tracing, and how many ray tracing cores does each have?

A: Both cards support ray tracing. The RX 6550S has 16 ray tracing cores, while the Arc Pro B70 has 32 ray tracing cores.

Q: What is the physical size difference between the two cards?

A: The RX 6550S uses the IGP slot width, making it suitable for integrated mobile platforms. The Arc Pro B70 is a dual-slot card measuring 267 mm in length, 110 mm in height, and 39 mm in width.

Q: What display outputs does each card offer?

A: The RX 6550S's display outputs are portable device dependent. The Arc Pro B70 provides 1x HDMI 2.1a and 3x DisplayPort 2.1 outputs.

Head-to-Head Benchmarks

The recorded head-to-head benchmark list is empty, so the comparison relies on the architectural specifications and throughput figures in the database. The largest single-category advantage for the Arc Pro B70 is in memory bandwidth, where 608.0 GB/s exceeds 128.0 GB/s by 4.8x. This gap directly impacts large dataset workloads, rendering buffers, and multi-display configurations. The Arc Pro B70's 256 bit memory bus versus the RX 6550S's 64 bit bus explains most of this difference, along with the higher memory clock of 2375 MHz versus 2000 MHz.

The FP32 throughput gap is nearly identical at 4.7x: 22.94 TFLOPS versus 4.915 TFLOPS. The Arc Pro B70's 4096 shading units deliver 4x the shading units of the RX 6550S, and its 256 TMUs deliver 4x the texture units. The texture rate of 716.8 GTexel/s versus 153.6 GTexel/s is a 4.7x difference. The pixel rate of 358.4 GPixel/s versus 76.80 GPixel/s is also a 4.7x difference. These ratios are consistent across the compute pipeline, indicating the Arc Pro B70 scales its entire rendering path proportionally.

The ray tracing core count is 32 versus 16, a 2x difference. The Arc Pro B70's FP16 throughput of 45.88 TFLOPS (2:1) versus 9.830 TFLOPS (2:1) on the RX 6550S also matches the 4.7x ratio. The RX 6550S does hold an advantage in power efficiency per the raw data: at 50 W it produces 4.915 TFLOPS, which is 98.3 GFLOPS per watt, while the Arc Pro B70 at 230 W produces 22.94 TFLOPS, which is 99.7 GFLOPS per watt. The efficiency figures are nearly identical, with the Arc Pro B70 slightly ahead in this calculation.

The interface bandwidth differs by a full generation: PCIe 5.0 x16 on the Arc Pro B70 versus PCIe 4.0 x4 on the RX 6550S. The Arc Pro B70's 5 nm process node is one step smaller than the RX 6550S's 6 nm node, and its 368 mm² die is 3.4x larger. The RX 6550S's die density of 50.5M transistors per mm² is recorded, while the Arc Pro B70's transistor density is not listed. The Arc Pro B70's base clock of 2280 MHz is 14% higher than the RX 6550S's 2000 MHz base clock, and its boost clock of 2800 MHz is 17% higher than 2400 MHz.

The memory capacity difference is 8x: 32 GB versus 4 GB. This is the largest relative gap in the comparison. The Arc Pro B70's 32 GB GDDR6 frame buffer makes it suitable for large compute and rendering tasks, while the RX 6550S's 4 GB capacity limits it to lighter workloads. The Arc Pro B70 also has a higher memory effective speed of 19 Gbps versus 16 Gbps on the RX 6550S. The RX 6550S's release date of 2023-01-03 and the Arc Pro B70's release date of 2026-03-25 place them more than three years apart in the database timeline.