Intel Arc B570 vs Intel Arc G3 Comparison

Intel Arc B570 and Intel Arc G3 represent two very different interpretations of Intel graphics. The B570 is a discrete add-in board built for desktop systems, while the G3 is an integrated graphics processor designed for mobile devices. The database contains no direct head-to-head benchmark results between these two parts, and the G3 has no recorded benchmark scores. The analysis below relies on the recorded specifications and the available benchmark data for the B570.

The Verdict

The recorded data shows two products with almost no overlap in purpose. The Intel Arc B570 is a discrete graphics card with a 150 W TDP, a dual-slot cooler, and a 1x 8-pin power connector. The Intel Arc G3 is an integrated graphics processor with a 25 W TDP, no power connectors, and an IGP bus interface. The B570 targets desktop systems with dedicated power delivery and cooling. The G3 targets portable devices where power draw is minimal.

For users building a desktop system with a dedicated power supply, the B570 is the only viable choice from this data. It has a launch MSRP of 219 USD, a 10 GB GDDR6 memory pool, and a 160-bit memory bus with 380.0 GB/s of bandwidth. The G3 uses system shared memory, which means its bandwidth depends entirely on the host system's memory configuration.

For portable device designs, the G3 is the only applicable part. Its 25 W TDP allows integration into devices without dedicated cooling or power connectors. The B570 cannot serve this role because its 150 W TDP and dual-slot form factor require a desktop chassis.

The G3's percentile ranking of 50 places it at the midpoint of all GPUs in the database, but this ranking is not supported by any recorded benchmark scores. The B570 holds a percentile ranking of 65 with an average benchmark score of 20556 across ten recorded tests. The B570's nearest rivals include the NVIDIA GeForce RTX 3070 Mobile at 20534 (0.1% lower), the Intel Arc A750 at 20582 (0.1% higher), the NVIDIA Quadro M4000M at 20480 (0.4% lower), and the AMD Radeon R9 M390X at 20662 (0.5% higher). This cluster of scores indicates the B570 sits in a competitive performance band.

Architecture Differences

The two GPUs use different architectures, process nodes, and foundries. The B570 uses the Xe2-HPG architecture on the BMG-G21 chip, built on a 5 nm process at TSMC. The G3 uses the Xe3-LPG architecture on the Panther Lake chip, built on a 3 nm process at Intel's own foundry. The B570 belongs to the Battlemage (Arc 5) generation, while the G3 belongs to the Arc Graphics-M (Panther Lake) generation.

The B570 carries 19,600 million transistors on a 272 mm² die, yielding a transistor density of 72.1M per mm². The G3's transistor count and die size are recorded as unknown, so no density comparison is possible. The B570's transistor budget is substantial, which aligns with its discrete design and active cooling requirement.

Shader resources differ significantly. The B570 has 2304 shading units, 144 texture mapping units, 80 raster output units, and 18 ray tracing cores. The G3 has 1280 shading units, 40 texture mapping units, 20 raster output units, and 10 ray tracing cores. The B570 has roughly 80% more shading units, 260% more texture mapping units, 300% more raster output units, and 80% more ray tracing cores.

Compute throughput follows the same pattern. The B570 delivers 11.52 TFLOPS of FP32 performance and 23.04 TFLOPS of FP16 performance (2:1 ratio). The G3 delivers 6.144 TFLOPS of FP32 and 12.29 TFLOPS of FP16 (2:1 ratio). The B570's FP32 output is approximately 87% higher than the G3's.

Clock behavior differs by design. The B570 has a fixed 2500 MHz base and boost clock. The G3 has a 300 MHz base clock and a 2400 MHz boost clock. The G3's base clock is very low, which suggests aggressive power management. Its boost clock reaches near the B570's sustained clock, but only under favorable thermal and power conditions in a portable device.

Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. API compatibility is identical, which means software support should not be the deciding factor between them.

Where Each One Wins

The B570 wins in every recorded performance category because the G3 has no recorded benchmark scores. The B570's advantage comes from its dedicated memory subsystem. With 10 GB of GDDR6 memory and 380.0 GB/s of bandwidth, the B570 can handle textures and framebuffers without competing with the CPU for memory access. The G3's system shared memory has no fixed size, type, or bandwidth, and its performance is system dependent.

Pixel throughput favors the B570. The B570 renders 200.0 GPixel/s, while the G3 renders 48.00 GPixel/s. Texture throughput also favors the B570 at 360.0 GTexel/s versus 96.00 GTexel/s. These numbers indicate the B570 can sustain higher resolution rendering and more texture-heavy workloads.

The G3 wins in power efficiency by design. Its 25 W TDP is one-sixth of the B570's 150 W TDP. The G3 uses no power connectors and requires no suggested PSU rating. The B570 requires a 450 W suggested PSU and a single 8-pin connector. For fanless or passively cooled portable devices, the G3's power envelope is a decisive advantage.

The B570's display outputs are fixed: one HDMI 2.1a and three DisplayPort 2.1 outputs. The G3's display outputs are portable device dependent, meaning the host device determines connectivity. This flexibility suits the G3's integrated role.

FAQ

Q: Does the Intel Arc G3 have any recorded benchmark scores?

A: No. The database lists no benchmarks for the G3 and records its average benchmark score as 0. The B570 has ten recorded benchmark scores with an average of 20556.

Q: How close is the B570 to its nearest rivals?

A: The B570's average score of 20556 is within 0.5% of all four nearest rivals. The NVIDIA GeForce RTX 3070 Mobile scores 20534 (0.1% lower), the Intel Arc A750 scores 20582 (0.1% higher), the NVIDIA Quadro M4000M scores 20480 (0.4% lower), and the AMD Radeon R9 M390X scores 20662 (0.5% higher).

Q: Which GPU has more ray tracing cores?

A: The B570 has 18 ray tracing cores. The G3 has 10 ray tracing cores. The B570's count is 80% higher.

Q: What memory configurations do these GPUs use?

A: The B570 uses 10 GB of GDDR6 memory on a 160-bit bus with 380.0 GB/s bandwidth. The G3 uses system shared memory with a system dependent bandwidth. The B570's memory clock is 2375 MHz (19 Gbps effective).

Q: What are the power requirements for each GPU?

A: The B570 has a 150 W TDP, requires a 450 W suggested PSU, and uses one 8-pin power connector. The G3 has a 25 W TDP, requires no power connectors, and has no suggested PSU rating.

Q: Do both GPUs support the same graphics APIs?

A: Yes. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The API feature sets are identical in the recorded data.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark results between the B570 and the G3. The headToHeadBenchmarks field is empty, and the wins counters show zero for both parts. The G3 has no individual benchmark scores, so a direct numerical comparison cannot be constructed from recorded measurements.

The B570's individual benchmarks provide context for its performance class. In 3DMark Steel Nomad (DX12), the B570 scores 2649. Geekbench OpenCL returns 83514, and Geekbench Vulkan returns 96844. Passmark tests show a DirectX 10 score of 65, DirectX 11 score of 118, DirectX 12 score of 72, and DirectX 9 score of 164. The Passmark G2D score is 661, the G3D score is 14195, and the GPU compute score is 7281.

These scores place the B570 at the 65th percentile among all GPUs in the database. Its average benchmark score of 20556 nearly matches the NVIDIA GeForce RTX 3070 Mobile's 20534, a difference of only 22 points or 0.1%. The Intel Arc A750 sits 26 points higher at 20582, also a 0.1% difference. The B570's performance class is tightly clustered with these four rivals, with the largest gap being 0.5% against the AMD Radeon R9 M390X.

The G3 has no comparable measurements. Its 50th percentile ranking exists in the database, but without benchmark scores or rival comparisons, this ranking cannot be verified against the B570 or any other GPU. The only quantitative comparison available is architectural: the B570's 11.52 TFLOPS FP32 versus the G3's 6.144 TFLOPS FP32, and the B570's 200.0 GPixel/s versus the G3's 48.00 GPixel/s.

Specification Differences

The B570 and G3 differ in nearly every recorded specification. The process nodes are different: the B570 uses 5 nm at TSMC, while the G3 uses 3 nm at Intel. The B570 has a 272 mm² die with 19,600 million transistors, while the G3's die size and transistor count are unknown. The B570's transistor density is 72.1M per mm².

Clock speeds differ. The B570 runs at 2500 MHz base and 2500 MHz boost. The G3 runs at 300 MHz base and 2400 MHz boost. Memory clocks also differ: the B570 uses 2375 MHz (19 Gbps effective) GDDR6, while the G3 uses system shared memory with no fixed clock.

Memory configuration splits cleanly. The B570 has 10 GB GDDR6 on a 160-bit bus with 380.0 GB/s bandwidth. The G3 has system shared memory with system dependent bandwidth. The B570's memory type, size, and bus width are fixed, while the G3's are determined by the host device.

Compute resources differ across the board. The B570 has 2304 shading units, 144 TMUs, 80 ROPs, and 18 RT cores. The G3 has 1280 shading units, 40 TMUs, 20 ROPs, and 10 RT cores. The B570 produces 200.0 GPixel/s and 360.0 GTexel/s, while the G3 produces 48.00 GPixel/s and 96.00 GTexel/s. FP32 throughput is 11.52 TFLOPS for the B570 and 6.144 TFLOPS for the G3. FP16 throughput is 23.04 TFLOPS for the B570 and 12.29 TFLOPS for the G3.

Power and form factor diverge completely. The B570 is a dual-slot card with a 150 W TDP, one 8-pin power connector, a 450 W suggested PSU, and dimensions of 272 mm by 115 mm. The G3 is an IGP with a 25 W TDP, no power connectors, no suggested PSU, and no recorded dimensions. The B570 uses a PCIe 4.0 x8 interface, while the G3 uses an IGP bus interface. The B570's display outputs are one HDMI 2.1a and three DisplayPort 2.1, while the G3's display outputs are portable device dependent.

Release timing differs as well. The B570 was released on 2025-01-15 with a launch MSRP of 219 USD. The G3 was released on 2026-05-31 with no launch MSRP recorded. The B570's predecessor is Alchemist, while the G3 has no recorded predecessor. Both parts list no successors. The B570's production status is active, and the G3's production status is also active.

The data implies two separate product lines. The B570 is a discrete GPU with a fixed power budget and a dedicated memory system. The G3 is an integrated GPU that borrows memory from the host and operates within a much smaller power envelope. The lack of G3 benchmark data prevents any performance ranking, but the architectural specifications show the B570 holds a clear advantage in raw throughput, memory bandwidth, and rendering rates.