Intel Arc B770 vs Intel Arc G3 Extreme Comparison

Head-to-Head Benchmarks

The recorded data shows no direct head-to-head benchmark results for the Intel Arc B770 and Intel Arc G3 Extreme. Both entries have empty benchmark arrays, zero average benchmark scores, and zero recorded wins on either side. The percentile ranking places both at the 50th percentile among all GPUs in the database, which indicates a mid-field standing but provides no comparative performance deltas.

Without measured frames per second, render times, or synthetic test scores, the only quantitative comparison available comes from the raw specification sheet. The Arc B770 delivers 19.66 TFLOPS of FP32 compute, while the Arc G3 Extreme delivers 7.680 TFLOPS. That places the B770 at roughly 2.56 times the raw compute throughput of the G3 Extreme. In FP16, the B770 reaches 39.32 TFLOPS with a 2:1 ratio, compared to 15.36 TFLOPS for the G3 Extreme, again roughly 2.56 times higher. These are theoretical peak figures, not application-specific results, but they establish a clear compute hierarchy.

Pixel fill rates show a similar gap: the B770 outputs 307.2 GPixel/s versus 60.00 GPixel/s for the G3 Extreme, a 5.12 times advantage. Texture fill rates differ by 5.12 times as well, with the B770 at 614.4 GTexel/s against the G3 Extreme's 120.0 GTexel/s. The B770 also has 4096 shading units versus 1536, 256 texture mapping units versus 48, and 128 render output units versus 24. The ray tracing core count stands at 32 for the B770 and 12 for the G3 Extreme.

Memory bandwidth cannot be compared directly because the G3 Extreme uses system shared memory with system dependent bandwidth, while the B770 has dedicated 16 GB of GDDR6 on a 256 bit bus delivering 512.0 GB/s. Clock speeds differ in an interesting way: the B770 has a higher base clock at 2100 MHz versus 300 MHz for the G3 Extreme, but the G3 Extreme has a higher boost clock at 2500 MHz versus 2400 MHz. The G3 Extreme's low base clock reflects its integrated nature, likely running at minimal frequency when idle, while the boost clock suggests it can ramp up under load.

Where Each One Wins

The Intel Arc B770 wins in every scenario that demands sustained heavy compute or high resolution rendering. Its 19.66 TFLOPS FP32 throughput, 512.0 GB/s dedicated memory bandwidth, and 16 GB GDDR6 frame buffer position it for 1440p and 4K gaming, ray tracing workloads with 32 RT cores, and content creation tasks that scale with shading units and texture fill rates. The 307.2 GPixel/s pixel rate and 614.4 GTexel/s texture rate indicate strong headroom for high detail settings and dense geometry.

The Intel Arc G3 Extreme wins in scenarios where power draw and physical footprint matter more than raw throughput. Its 80 W TDP versus 225 W for the B770, combined with an IGP slot width and no power connectors, makes it suitable for thin and light portable devices. The G3 Extreme's 2500 MHz boost clock, which exceeds the B770's 2400 MHz boost, provides a modest frequency advantage when the integrated GPU can reach its peak. The system shared memory design means it costs no additional VRAM, and the 12 RT cores still enable hardware accelerated ray tracing, just at lower throughput.

The use case split is straightforward. The B770 targets desktop towers with a dual-slot cooler, a 550 W suggested PSU, and PCIe 4.0 x16 connectivity. The G3 Extreme targets mobile devices where the display outputs are portable device dependent and the bus interface is IGP, meaning it shares the system's memory controller and power delivery. The B770 also offers 1x HDMI 2.1a and 3x DisplayPort 2.1 outputs, while the G3 Extreme's outputs depend on the host device.

Architecture Differences

The two GPUs come from different Intel architectures and process nodes. The Arc B770 uses the BMG-G31 chip built on Xe2-HPG architecture, belonging to the Battlemage (Arc 7) generation. Its process node is 5 nm, fabricated by TSMC. The die size measures 368 mm². The Arc G3 Extreme uses the Panther Lake chip built on Xe3-LPG architecture, belonging to the Arc Graphics-M (Panther Lake) generation. Its process node is 3 nm, fabricated by Intel. The die size is listed as unknown in the database.

The architecture naming reveals the design priorities. Xe2-HPG is a high performance graphics architecture designed for discrete GPUs, while Xe3-LPG is a low power graphics architecture designed for integrated solutions. The "LPG" suffix typically indicates low power graphics, which aligns with the 80 W TDP and IGP form factor. The "HPG" suffix indicates high performance graphics, aligned with the 225 W TDP and dual-slot discrete design.

Shader organization differs significantly. The B770 has 4096 shading units, 256 TMUs, 128 ROPs, and 32 RT cores. The G3 Extreme has 1536 shading units, 48 TMUs, 24 ROPs, and 12 RT cores. The ratio of shading units to TMUs is 16:1 on the B770 and 32:1 on the G3 Extreme, indicating different texture processing balance. The B770 has a 4:1 ratio of shading units to ROPs, while the G3 Extreme has a 64:1 ratio, reflecting the G3 Extreme's much lower pixel output capability relative to its compute.

Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API feature parity exists. The memory subsystems are fundamentally different: the B770 has dedicated GDDR6 with a fixed 256 bit bus and 512.0 GB/s bandwidth, while the G3 Extreme uses system shared memory with bus width and bandwidth both marked as system dependent. The B770's memory clock is 2000 MHz with 16 Gbps effective speed, while the G3 Extreme has no dedicated memory clock.

The B770's predecessor is Alchemist, the previous Arc generation. The G3 Extreme has no predecessor listed. The B770 has no production status listed, while the G3 Extreme is marked as Active. Release dates differ: the B770 is dated 2025-12-31 and the G3 Extreme is dated 2026-05-31, though both dates appear as end-of-month markers in the database.

FAQ

Q: Which GPU has higher raw compute performance?

A: The Intel Arc B770 delivers 19.66 TFLOPS FP32 and 39.32 TFLOPS FP16 (2:1), while the Intel Arc G3 Extreme delivers 7.680 TFLOPS FP32 and 15.36 TFLOPS FP16 (2:1). The B770 has roughly 2.56 times the FP32 and FP16 throughput.

Q: Do both GPUs support hardware ray tracing?

A: Yes. The B770 has 32 RT cores, and the G3 Extreme has 12 RT cores. Both support DirectX 12 Ultimate (12_2), which includes ray tracing features.

Q: What memory configurations do they use?

A: The B770 uses 16 GB of GDDR6 on a 256 bit bus with 512.0 GB/s bandwidth and a 2000 MHz memory clock (16 Gbps effective). The G3 Extreme uses system shared memory with system dependent bus width and bandwidth.

Q: Which GPU has a higher boost clock?

A: The G3 Extreme boosts to 2500 MHz, while the B770 boosts to 2400 MHz. However, the B770 has a much higher base clock at 2100 MHz versus the G3 Extreme's 300 MHz base clock.

Q: What are the power requirements for each?

A: The B770 has a 225 W TDP, requires a 550 W suggested PSU, uses one 6-pin and one 8-pin power connector, and is a dual-slot card. The G3 Extreme has an 80 W TDP, no power connectors, and is an IGP with no suggested PSU listed.

Q: Which GPU is newer in the database?

A: The G3 Extreme has a release date of 2026-05-31 and is marked as Active production status. The B770 has a release date of 2025-12-31 and no production status listed.

Specification Differences

The following fields differ between the two GPUs in the database:

• Chip: BMG-G31 (B770) versus Panther Lake (G3 Extreme)
• Architecture: Xe2-HPG (B770) versus Xe3-LPG (G3 Extreme)
• Generation: Battlemage (Arc 7) (B770) versus Arc Graphics-M (Panther Lake) (G3 Extreme)
• Process Node: 5 nm (B770) versus 3 nm (G3 Extreme)
• Foundry: TSMC (B770) versus Intel (G3 Extreme)
• Die Size: 368 mm² (B770) versus unknown (G3 Extreme)
• Base Clock: 2100 MHz (B770) versus 300 MHz (G3 Extreme)
• Boost Clock: 2400 MHz (B770) versus 2500 MHz (G3 Extreme)
• Memory Clock: 2000 MHz 16 Gbps effective (B770) versus system shared (G3 Extreme)
• Memory Size: 16 GB (B770) versus system shared (G3 Extreme)
• Memory Type: GDDR6 (B770) versus system shared (G3 Extreme)
• Memory Bus Width: 256 bit (B770) versus system shared (G3 Extreme)
• Memory Bandwidth: 512.0 GB/s (B770) versus system dependent (G3 Extreme)
• Shading Units: 4096 (B770) versus 1536 (G3 Extreme)
• TMUs: 256 (B770) versus 48 (G3 Extreme)
• ROPs: 128 (B770) versus 24 (G3 Extreme)
• RT Cores: 32 (B770) versus 12 (G3 Extreme)
• Pixel Rate: 307.2 GPixel/s (B770) versus 60.00 GPixel/s (G3 Extreme)
• Texture Rate: 614.4 GTexel/s (B770) versus 120.0 GTexel/s (G3 Extreme)
• FP32: 19.66 TFLOPS (B770) versus 7.680 TFLOPS (G3 Extreme)
• FP16: 39.32 TFLOPS (B770) versus 15.36 TFLOPS (G3 Extreme)
• TDP: 225 W (B770) versus 80 W (G3 Extreme)
• Slot Width: Dual-slot (B770) versus IGP (G3 Extreme)
• Power Connectors: 1x 6-pin + 1x 8-pin (B770) versus none (G3 Extreme)
• Suggested PSU: 550 W (B770) versus null (G3 Extreme)
• Bus Interface: PCIe 4.0 x16 (B770) versus IGP (G3 Extreme)
• Display Outputs: 1x HDMI 2.1a, 3x DisplayPort 2.1 (B770) versus portable device dependent (G3 Extreme)
• Production Status: null (B770) versus Active (G3 Extreme)
• Release Date: 2025-12-31 (B770) versus 2026-05-31 (G3 Extreme)
• Predecessor: Alchemist (B770) versus null (G3 Extreme)

Fields that match include manufacturer (Intel), API support (DirectX 12 Ultimate 12_2, OpenGL 4.6, Vulkan 1.4), and percentile vs all GPUs (50 for both).

The Verdict

The data supports a clear separation of roles. The Intel Arc B770 is the discrete performance part. Its 19.66 TFLOPS FP32 compute, 512.0 GB/s dedicated bandwidth, 16 GB GDDR6 capacity, and 32 RT cores make it the choice for gaming at high resolutions, ray tracing, and GPU accelerated content creation. The dual-slot cooler, 225 W TDP, and 550 W suggested PSU indicate a desktop build with dedicated power delivery. The B770 also offers fixed display outputs with HDMI 2.1a and three DisplayPort 2.1 connections, suitable for multi-monitor setups.

The Intel Arc G3 Extreme is the integrated efficiency part. Its 80 W TDP, IGP slot width, and lack of power connectors fit mobile or compact devices where discrete graphics is not an option. The 2500 MHz boost clock shows it can reach competitive frequencies when needed, and the 12 RT cores provide hardware ray tracing capability despite lower overall throughput. The system shared memory design means no dedicated VRAM allocation, and the display outputs depend on the host portable device.

Neither GPU has recorded benchmark scores or nearest rival data in the database, so the verdict rests on specification analysis. The B770 wins decisively on compute, memory, and rendering throughput. The G3 Extreme wins on power efficiency, physical footprint, and peak clock speed. A builder selecting a desktop GPU should choose the B770. A system integrator designing a low power portable device should choose the G3 Extreme. The two parts do not compete for the same socket, chassis, or power budget, so the appropriate choice depends entirely on the target platform.