AMD Radeon RX 7800M vs Intel Arc B770 Comparison

Where Each One Wins

The recorded data presents a clear asymmetry between these two GPUs. The AMD Radeon RX 7800M has a full set of ten benchmark entries spanning DirectX 9 through DirectX 12, OpenCL, Vulkan, and 2D workloads. The Intel Arc B770, in contrast, has no recorded benchmark scores in the database at the time of analysis, which means its win count stands at zero against the AMD part's zero measured head-to-head victories.

The RX 7800M's strongest showing comes from the Geekbench Vulkan test, where it records 126,668 points, slightly ahead of its OpenCL result of 120,778 points. In the Passmark suite, the G3D score of 17,613 dominates its own results, while the GPU Compute score reaches 9,342. The lower DirectX entries, such as 99 in DirectX 10, 176 in DirectX 11, 89 in DirectX 12, and 174 in DirectX 9, indicate that these legacy tests do not scale with the card's architectural capabilities. The G2D result of 892 rounds out the picture.

For the Intel Arc B770, with no benchmark entries present, the database lists its percentile versus all GPUs at 50, while the RX 7800M sits at the 73rd percentile. The average benchmark score for the AMD card is 27,883. The Intel card's average is recorded as zero, which is consistent with its empty benchmark array. The data therefore indicates that any performance comparison must rely on specification analysis rather than measured results.

Architecture Differences

The two chips diverge fundamentally in their underlying design. The AMD Radeon RX 7800M uses the Navi 32 chip built on RDNA 3.0 architecture, with the codename "Wheat Nas" and a generation label of Navi Mobile (RX 7000M). It is fabricated on a 5 nm process at TSMC, containing 28,100 million transistors on a 346 mm² die, giving a transistor density of 81.2 million per square millimeter. The Intel Arc B770 uses the BMG-G31 chip on Xe2-HPG architecture, placed in the Battlemage (Arc 7) generation. It also uses a 5 nm TSMC process, but its transistor count is listed as unknown, and its die size is 368 mm², slightly larger than the AMD chip.

The compute configurations differ substantially. The RX 7800M carries 3,840 shading units, 240 texture mapping units, and 96 raster operation pipelines. It includes 60 ray tracing cores and no tensor core field is listed. The Arc B770 provides 4,096 shading units, 256 TMUs, and 128 ROPs, but only 32 ray tracing cores. The AMD part's FP32 throughput is 35.87 TFLOPS with FP16 at the same 35.87 TFLOPS (1:1 ratio). The Intel part delivers 19.66 TFLOPS FP32 but 39.32 TFLOPS FP16 at a 2:1 ratio, indicating a design that prioritizes half-precision workloads.

Memory configurations also separate the two. The RX 7800M uses 12 GB of GDDR6 on a 192-bit bus, producing 432.0 GB/s of bandwidth. The Arc B770 uses 16 GB of GDDR6 on a 256-bit bus, yielding 512.0 GB/s. Clock behavior differs as well. The AMD card has a base clock of 1295 MHz, a boost of 2335 MHz, and a game clock of 2145 MHz, with memory at 2250 MHz (18 Gbps effective). The Intel card runs a base clock of 2100 MHz, boost of 2400 MHz, no game clock listed, and memory at 2000 MHz (16 Gbps effective).

The power and physical profiles are distinct. The RX 7800M has a TDP of 180 W, is an IGP form factor with no power connectors, and its display outputs are portable device dependent. The Arc B770 has a TDP of 225 W, is a dual-slot card, uses one 6-pin plus one 8-pin power connector, and suggests a 550 W power supply. It offers 1x HDMI 2.1a and 3x DisplayPort 2.1 outputs. Both use PCIe 4.0 x16 and support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Head-to-Head Benchmarks

The head-to-head benchmark array in the database is empty, and the win counters for both parts read zero. This means there are no direct comparison scores between the RX 7800M and Arc B770 available. The only measured data belongs to the AMD card. Its average benchmark score of 27,883 places it at the 73rd percentile among all GPUs. Its nearest rivals in the database are instructive for context. The AMD Radeon Pro Vega 20 scores 27,839 on average, a delta of 0.2 percent relative to the RX 7800M. The AMD Radeon Pro W5500X scores 27,973, a delta of -0.3 percent. The NVIDIA GeForce GTX 980 Ti scores 28,020, a delta of -0.5 percent. The AMD FirePro S7150 scores 28,117, a delta of -0.8 percent. The RX 7800M therefore sits in a tight cluster of older workstation and enthusiast cards, all within one percent of each other in average score.

The Intel Arc B770 has no such rival data. Its percentile of 50 and average score of zero reflect the absence of recorded measurements. The specification sheet, however, shows a card with higher memory capacity and bandwidth, more shading units, and a larger die, though with lower FP32 throughput. The lack of benchmark data prevents any quantitative claim about relative performance.

FAQ

Q: Which GPU has more memory bandwidth?

A: The Intel Arc B770 records 512.0 GB/s across a 256-bit bus, while the AMD Radeon RX 7800M records 432.0 GB/s across a 192-bit bus.

Q: What are the average benchmark scores for each card?

A: The AMD Radeon RX 7800M has an average benchmark score of 27,883. The Intel Arc B770 has an average benchmark score of 0, as no benchmark entries are recorded in the database.

Q: How do the FP32 throughput figures compare?

A: The AMD Radeon RX 7800M delivers 35.87 TFLOPS FP32. The Intel Arc B770 delivers 19.66 TFLOPS FP32, which is lower, but its FP16 throughput of 39.32 TFLOPS exceeds the AMD card's 35.87 TFLOPS FP16.

Q: What is the transistor count for each chip?

A: The AMD Radeon RX 7800M uses 28,100 million transistors. The Intel Arc B770's transistor count is listed as unknown.

Q: Which card has more ray tracing cores?

A: The AMD Radeon RX 7800M has 60 ray tracing cores. The Intel Arc B770 has 32 ray tracing cores.

Q: What are the TDP values?

A: The AMD Radeon RX 7800M has a TDP of 180 W. The Intel Arc B770 has a TDP of 225 W.

Specification Differences

The two GPUs differ across nearly every major specification category. The RX 7800M uses the Navi 32 chip with RDNA 3.0 architecture and the codename Wheat Nas, while the Arc B770 uses BMG-G31 with Xe2-HPG architecture and no codename recorded. The AMD part is in the Navi Mobile (RX 7000M) generation, the Intel part in Battlemage (Arc 7). The AMD card has a die size of 346 mm², the Intel card 368 mm². Transistor density is listed for AMD at 81.2 million per square millimeter, but not for Intel.

Clock speeds show the Intel card running higher base and boost figures. The RX 7800M has a base of 1295 MHz and boost of 2335 MHz, with a game clock of 2145 MHz. The Arc B770 has a base of 2100 MHz and boost of 2400 MHz, with no game clock listed. Memory clocks also differ: 2250 MHz (18 Gbps effective) on the AMD card versus 2000 MHz (16 Gbps effective) on the Intel card.

Memory capacity, bus width, and bandwidth all favor Intel: 16 GB versus 12 GB, 256-bit versus 192-bit, and 512.0 GB/s versus 432.0 GB/s. The compute units favor Intel in raw count, with 4,096 shading units, 256 TMUs, and 128 ROPs against AMD's 3,840 shading units, 240 TMUs, and 96 ROPs. The AMD card has more ray tracing cores at 60 versus 32. Pixel rate and texture rate are higher on the Intel part: 307.2 GPixel/s versus 224.2 GPixel/s, and 614.4 GTexel/s versus 560.4 GTexel/s.

FP32 throughput goes to AMD at 35.87 TFLOPS versus 19.66 TFLOPS, while FP16 goes to Intel at 39.32 TFLOPS versus 35.87 TFLOPS. The AMD card is a 180 W IGP with no power connectors, while the Intel card is a 225 W dual-slot add-in board requiring one 6-pin and one 8-pin connector and a 550 W suggested power supply. Display outputs differ: portable device dependent for AMD, 1x HDMI 2.1a and 3x DisplayPort 2.1 for Intel. The AMD card's production status is active with a release date of 2024-09-10, while the Intel card's production status is not listed and its release date is 2025-12-31. The AMD card's predecessor is Polaris Mobile, and the Intel card's predecessor is Alchemist.

The Verdict

The data supports a clear split. The AMD Radeon RX 7800M is the only one of the two with measured performance. Its average benchmark score of 27,883 and 73rd percentile ranking place it among capable desktop and workstation GPUs from earlier generations, within one percent of the Radeon Pro Vega 20, Radeon Pro W5500X, GeForce GTX 980 Ti, and FirePro S7150. Its 12 GB memory and 432.0 GB/s bandwidth are lower than the Intel part's figures, but its FP32 throughput of 35.87 TFLOPS is substantially higher.

The Intel Arc B770 presents a specification profile that looks strong on paper. It offers 16 GB of memory, 512.0 GB/s of bandwidth, 4,096 shading units, and a higher boost clock of 2400 MHz. Its FP32 rate of 19.66 TFLOPS is lower than the AMD card, but its FP16 rate of 39.32 TFLOPS suggests a different workload orientation. The absence of benchmark entries means the database cannot confirm any real-world advantage.

The choice depends on what the data can support. For measured performance and a known percentile ranking, the RX 7800M is the only option with evidence. For memory capacity, bandwidth, and raw shader counts, the Arc B770 offers a more expansive specification sheet, but without scores, its actual standing remains unverified. The RX 7800M is the safer selection based on recorded results; the Arc B770 is a specification-based alternative awaiting measurement.