AMD Radeon 740M vs Intel Arc B770 Comparison

AMD Radeon 740M and Intel Arc B770 occupy very different positions in the graphics landscape. The Radeon 740M is an integrated processor graphics unit within AMD’s Phoenix2 chip, built for low-power laptops and compact systems. The Arc B770 is a full-size desktop discrete graphics card from Intel’s Battlemage generation, designed for high-resolution gaming and content creation. The database contains benchmark data for the Radeon 740M, while the Arc B770 has no recorded scores yet. However, the specification sheets provide enough information for a detailed comparison.

Head-to-Head Benchmarks

The recorded data for the AMD Radeon 740M includes two benchmark results. In Geekbench OpenCL, the Radeon 740M scored 10172. In Geekbench Vulkan, it scored 15568. The average benchmark score for the Radeon 740M is 12870. This places it at the 53rd percentile among all GPUs in the database. The nearest rivals around this score are interesting. The AMD FirePro W5100 has an average score of 12847, which is 0.2% lower than the Radeon 740M. The AMD Radeon Pro 455 scores 12831, also 0.3% lower. The NVIDIA GeForce GTX 590 scores 12830, again 0.3% lower. On the other side, the AMD Radeon RX 580 scores 12928, which is 0.4% higher than the Radeon 740M. These deltas are tiny, meaning the Radeon 740M sits in a performance band where it trades blows with older midrange discrete cards.

The Intel Arc B770 has no benchmark entries in the database. Its average benchmark score is listed as 0, and it has no nearest rivals recorded. The percentile field shows 50, but without actual test results, this is not a measured performance indicator. The head-to-head benchmark comparison cannot be filled with direct scores for the Arc B770. Instead, the specification-based analysis must carry the comparison. The Radeon 740M’s Vulkan score of 15568 is notably higher than its OpenCL score of 10172, suggesting the architecture responds well to Vulkan’s explicit API. The Arc B770’s performance is unknown from measurements, but its hardware specifications indicate a much higher compute ceiling.

Architecture Differences

The Radeon 740M uses AMD’s RDNA 3.0 architecture, manufactured on a 4 nm process at TSMC. The chip is called Phoenix2, and it belongs to the Navi III IGP (Phoenix) generation. The transistor count is 20,900 million, packed into a die size of 137 mm². This yields a transistor density of 152.6 million transistors per square millimeter. The Radeon 740M has 256 shading units, 16 texture mapping units, 8 render output units, and 4 ray tracing cores. It does not have tensor cores. The base clock is 800 MHz, and the boost clock reaches 2800 MHz. Its FP32 throughput is 2.867 TFLOPS, and FP16 throughput is also 2.867 TFLOPS at a 1:1 ratio. The pixel rate is 22.40 GPixel/s, and the texture rate is 44.80 GTexel/s.

The Intel Arc B770 uses Xe2-HPG architecture, manufactured on a 5 nm process, also at TSMC. The chip is designated BMG-G31, and it belongs to the Battlemage (Arc 7) generation. The transistor count is listed as unknown, but the die size is 368 mm². The Arc B770 has 4096 shading units, 256 texture mapping units, 128 render output units, and 32 ray tracing cores. It also has no tensor cores. The base clock is 2100 MHz, and the boost clock reaches 2400 MHz. Its FP32 throughput is 19.66 TFLOPS, while FP16 throughput is 39.32 TFLOPS at a 2:1 ratio. The pixel rate is 307.2 GPixel/s, and the texture rate is 614.4 GTexel/s.

The architectural gap is massive. The Arc B770 has 16 times the shading units of the Radeon 740M (4096 versus 256). It has 16 times the TMUs (256 versus 16) and 16 times the ROPs (128 versus 8). Ray tracing cores scale similarly: 32 versus 4. The FP32 compute is roughly 6.9 times higher on the Arc B770 (19.66 TFLOPS versus 2.867 TFLOPS). The FP16 situation is even more lopsided because the Arc B770 doubles its FP16 rate to 39.32 TFLOPS, while the Radeon 740M maintains a 1:1 ratio, so the Arc B770 has about 13.7 times the FP16 throughput. The Radeon 740M’s advantage is its clock speed: its boost clock of 2800 MHz is higher than the Arc B770’s 2400 MHz. But the Radeon 740M’s higher boost clock cannot compensate for the vastly smaller execution resource pool.

The process nodes differ slightly: 4 nm for AMD versus 5 nm for Intel, both from TSMC. The Radeon 740M is an integrated GPU with no dedicated memory. The Arc B770 is a discrete card with 16 GB of GDDR6 memory on a 256-bit bus, offering 512.0 GB/s of bandwidth. The Radeon 740M shares system memory, with bandwidth described as system dependent. The Arc B770’s memory clock is 2000 MHz with 16 Gbps effective data rate. The Radeon 740M’s memory clock is listed as system shared, with no dedicated speed.

Where Each One Wins

The Radeon 740M wins in scenarios where power and space are constrained. Its TDP is 45 W, and it is an integrated GPU with no power connectors, fitting into a motherboard without any additional card slot. It uses PCIe 4.0 x8 interface, which is sufficient for an IGP. The Radeon 740M is designed for lightweight productivity, casual gaming at modest settings, and multimedia tasks. Its benchmark scores in Geekbench Vulkan (15568) indicate it handles API-level workloads reasonably well for its class. The Radeon 740M’s nearest rivals are all older discrete GPUs or midrange cards from the past, so it competes with hardware from several generations ago. For a laptop or a small form factor PC, the Radeon 740M delivers playable frame rates in less demanding titles, but its 2.867 TFLOPS FP32 and 8 ROPs limit its ability to push high resolutions or heavy effects.

The Arc B770 wins in scenarios that demand raw throughput, large memory capacity, and high bandwidth. Its 19.66 TFLOPS FP32, 307.2 GPixel/s pixel rate, and 614.4 GTexel/s texture rate place it in a different performance class entirely. The 16 GB GDDR6 memory with 512.0 GB/s bandwidth supports high-resolution textures and large datasets. The 32 ray tracing cores provide dedicated hardware for ray-traced effects, far beyond the 4 in the Radeon 740M. The Arc B770 has a TDP of 225 W, requires a 550 W power supply, and uses a dual-slot cooler with one 6-pin and one 8-pin power connector. It also has a wider PCIe 4.0 x16 interface. This card targets 1440p and 4K gaming, content creation with heavy GPU acceleration, and workloads like video encoding or 3D rendering. The Arc B770’s FP16 throughput of 39.32 TFLOPS is particularly useful for AI-style workloads that rely on half-precision math, though it lacks dedicated tensor cores.

Specification Differences

The two GPUs differ in nearly every specification category. The Radeon 740M has a base clock of 800 MHz and a boost clock of 2800 MHz. The Arc B770 has a base clock of 2100 MHz and a boost clock of 2400 MHz. The Radeon 740M’s boost clock is 400 MHz higher, but the Arc B770’s base clock is 1300 MHz higher. The Radeon 740M has no dedicated memory; it uses system shared memory with system dependent bandwidth. The Arc B770 has 16 GB of GDDR6 memory on a 256-bit bus with 512.0 GB/s bandwidth. The Radeon 740M has 256 shading units, 16 TMUs, 8 ROPs, and 4 ray tracing cores. The Arc B770 has 4096 shading units, 256 TMUs, 128 ROPs, and 32 ray tracing cores. The Radeon 740M’s FP32 is 2.867 TFLOPS, and FP16 is 2.867 TFLOPS. The Arc B770’s FP32 is 19.66 TFLOPS, and FP16 is 39.32 TFLOPS. The Radeon 740M has a pixel rate of 22.40 GPixel/s and a texture rate of 44.80 GTexel/s. The Arc B770 has a pixel rate of 307.2 GPixel/s and a texture rate of 614.4 GTexel/s.

Power consumption differs drastically. The Radeon 740M has a TDP of 45 W, no power connectors, and no suggested PSU. The Arc B770 has a TDP of 225 W, requires a 550 W power supply, and uses one 6-pin and one 8-pin power connector. The Radeon 740M is an IGP with no slot width, while the Arc B770 is dual-slot. The bus interface differs: PCIe 4.0 x8 for the Radeon 740M versus PCIe 4.0 x16 for the Arc B770. Display outputs are motherboard dependent for the Radeon 740M, while the Arc B770 has 1x HDMI 2.1a and 3x DisplayPort 2.1. The process node is 4 nm for the Radeon 740M and 5 nm for the Arc B770, both from TSMC. The die size is 137 mm² for the Radeon 740M and 368 mm² for the Arc B770. Transistor count is 20,900 million for the Radeon 740M and unknown for the Arc B770. The Radeon 740M has a transistor density of 152.6M / mm², while the Arc B770 has no listed density. The release dates differ: the Radeon 740M launched on 2024-01-30, and the Arc B770 is slated for 2025-12-31. The Radeon 740M’s predecessor is Navi II IGP, and its successor is Navi III IGP. The Arc B770’s predecessor is Alchemist, with no successor listed. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

FAQ

Q: Which GPU has higher raw compute performance?

A: The Intel Arc B770 has 19.66 TFLOPS FP32, compared to the AMD Radeon 740M’s 2.867 TFLOPS. The Arc B770 also reaches 39.32 TFLOPS FP16, while the Radeon 740M stays at 2.867 TFLOPS.

Q: How much memory does each GPU have?

A: The Radeon 740M uses system shared memory with no dedicated VRAM. The Arc B770 has 16 GB of GDDR6 memory on a 256-bit bus.

Q: What is the memory bandwidth difference?

A: The Arc B770 provides 512.0 GB/s of bandwidth. The Radeon 740M’s bandwidth is system dependent, meaning it varies based on the host system’s memory configuration.

Q: Do both GPUs support ray tracing?

A: Yes, but with different hardware resources. The Radeon 740M has 4 ray tracing cores, while the Arc B770 has 32 ray tracing cores.

Q: What are the power requirements for each?

A: The Radeon 740M has a TDP of 45 W and requires no power connectors. The Arc B770 has a TDP of 225 W, needs a 550 W power supply, and uses one 6-pin and one 8-pin power connector.

Q: Are there any benchmark results for the Arc B770 in the database?

A: No, the Arc B770 has no recorded benchmark scores. The Radeon 740M has a Geekbench OpenCL score of 10172 and a Geekbench Vulkan score of 15568, with an average of 12870.

The Verdict

The database shows a clear divide. The AMD Radeon 740M is an integrated solution aimed at efficiency and portability, with a 45 W TDP and no separate memory. Its benchmark scores place it near the AMD Radeon RX 580, which is 0.4% higher, and the NVIDIA GeForce GTX 590, which is 0.3% lower. This puts the Radeon 740M in the range of older midrange discrete GPUs, suitable for light gaming and everyday graphics tasks. The Intel Arc B770, by contrast, is a high-end discrete card with 16 times the shading units, 16 times the ROPs, and 6.9 times the FP32 throughput compared to the Radeon 740M. Its 16 GB GDDR6 memory and 512.0 GB/s bandwidth target high-resolution gaming and GPU-intensive workloads. The Arc B770’s lack of benchmark data means its real-world performance is unverified, but the specification sheet indicates it belongs to a much higher performance tier. Users with a desktop system, a 550 W power supply, and a need for high-end graphics should consider the Arc B770 based on its specifications. Users with a laptop or small form factor system where power draw and physical space are limited should rely on the Radeon 740M, whose measured scores confirm its position in the midrange of the database. The two GPUs serve distinct markets, and the data supports that separation.