AMD Radeon Instinct MI300X vs Intel Arc B770 Comparison

AMD Radeon Instinct MI300X and Intel Arc B770 occupy entirely different corners of the GPU landscape. The MI300X is an accelerator module built for data center compute, while the Arc B770 is a consumer graphics card aimed at gaming and workstation use. The database records no direct benchmark comparisons between them, and their performance profiles are defined by hardware specifications rather than measured head-to-head results. This analysis relies strictly on the recorded technical data for both parts.

Where Each One Wins

The AMD Radeon Instinct MI300X wins decisively in raw compute throughput and memory capacity. Its FP32 performance is recorded at 81.72 TFLOPS, which is over four times the 19.66 TFLOPS of the Intel Arc B770. In FP16, the gap widens further: the MI300X delivers 653.7 TFLOPS (8:1 ratio) versus 39.32 TFLOPS (2:1 ratio) for the Arc B770. This places the MI300X squarely in the domain of large-scale AI training, scientific simulation, and high-performance computing workloads where massive parallel floating-point throughput is the primary requirement.

The MI300X also wins on memory. It carries 192 GB of HBM3 across an 8192-bit bus, yielding 10.3 TB/s of bandwidth. That is roughly twenty times the bandwidth of the Arc B770’s 512.0 GB/s from 16 GB of GDDR6 on a 256-bit bus. For workloads that stream very large datasets, such as large language model inference or data analytics, the MI300X holds a commanding lead.

The Intel Arc B770 wins in areas tied to consumer functionality and practical desktop use. It has display outputs (1x HDMI 2.1a and 3x DisplayPort 2.1), while the MI300X has no outputs at all. The Arc B770 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, whereas the MI300X lists no API support in the database. The Arc B770 also includes 32 ray tracing cores, a feature absent from the MI300X record. For gaming, the Arc B770 is the only one of the two that can render frames to a screen.

Power efficiency is another area where the Arc B770 wins. The Intel card has a TDP of 225 W, while the AMD module draws 750 W. The Arc B770 uses a standard dual-slot form factor with a 1x 6-pin plus 1x 8-pin power connector setup and requires a 550 W suggested PSU. The MI300X is an OAM module with no power connectors listed and a suggested PSU of 1150 W. The Arc B770 is the only viable option for a typical desktop chassis.

Architecture Differences

The two GPUs come from different architectural lineages. The AMD Radeon Instinct MI300X uses CDNA 3.0 architecture, built on the Aqua Vanjaram chip. It is manufactured on a 5 nm process at TSMC, with 153,000 million transistors on a 1017 mm² die. The transistor density is recorded at 150.4 million per mm². This is a massive, compute-focused silicon design with no display engine and no graphics API support listed.

The Intel Arc B770 uses Xe2-HPG architecture, built on the BMG-G31 chip, part of the Battlemage generation (Arc 7). It is also manufactured on a 5 nm process at TSMC, but the die size is much smaller at 368 mm². The transistor count is listed as unknown, and no transistor density is recorded. The architecture targets graphics rendering with hardware ray tracing support, which the MI300X lacks.

The shading unit counts differ dramatically. The MI300X has 19,456 shading units, 1,216 texture mapping units, and zero ROPs. The Arc B770 has 4,096 shading units, 256 TMUs, and 128 ROPs. The pixel rate for the MI300X is 0 MPixel/s, reflecting its lack of a rasterization pipeline, while the Arc B770 delivers 307.2 GPixel/s. Texture rates are 2,553.6 GTexel/s for the AMD part and 614.4 GTexel/s for the Intel part.

Memory technology is a fundamental split. The MI300X uses HBM3 with a 8192-bit bus and 10.3 TB/s bandwidth, designed for maximum throughput. The Arc B770 uses GDDR6 with a 256-bit bus and 512.0 GB/s bandwidth, a standard consumer memory configuration. The memory clocks also differ: the MI300X runs at 2525 MHz (10.1 Gbps effective), while the Arc B770 runs at 2000 MHz (16 Gbps effective). The effective data rate is higher on the Intel card, but the bus width difference overwhelms that in total bandwidth.

Clock speeds go in opposite directions relative to their roles. The MI300X has a base clock of 1000 MHz and a boost clock of 2100 MHz. The Arc B770 has a base clock of 2100 MHz and a boost clock of 2400 MHz. The consumer card runs at higher clocks, but the accelerator’s enormous core count compensates in total throughput.

Head-to-Head Benchmarks

The database contains no recorded head-to-head benchmark entries between these two products. The wins count is zero for both, and the average benchmark score for each is zero. The percentile versus all GPUs is 50 for both, which indicates they sit at the midpoint of the database’s performance distribution, but this is a relative rank with no measured data behind it for this pairing.

Without direct measurements, the recorded specifications provide the only basis for comparison. In FP32 compute, the MI300X delivers 81.72 TFLOPS against 19.66 TFLOPS for the Arc B770. That is a ratio of approximately 4.16 to 1. In FP16, the MI300X delivers 653.7 TFLOPS against 39.32 TFLOPS, a ratio of approximately 16.6 to 1, though the ratio formats differ (8:1 versus 2:1), so peak throughput claims are not directly comparable without accounting for the precision conversion overhead.

Memory bandwidth shows the largest proportional gap. The MI300X’s 10.3 TB/s versus the Arc B770’s 512.0 GB/s is a factor of about 20.1. This means any workload bound by memory access patterns will see a much larger difference than the raw compute ratio suggests. Conversely, the Arc B770’s pixel rate of 307.2 GPixel/s versus the MI300X’s 0 MPixel/s is an absolute win for the Intel card in rasterization output.

The texture rate comparison shows the MI300X at 2,553.6 GTexel/s versus 614.4 GTexel/s for the Arc B770, a factor of about 4.16, matching the FP32 ratio. The ROP count difference (0 versus 128) explains why the MI300X cannot output pixels, making the Arc B770 the only one capable of frame generation.

FAQ

Q: Can the AMD Radeon Instinct MI300X be used for gaming?

A: No. The database lists no display outputs, no DirectX, OpenGL, or Vulkan support, a pixel rate of 0 MPixel/s, and zero ROPs. It cannot render frames to a display.

Q: What is the memory bandwidth difference between the two?

A: The MI300X has 10.3 TB/s from 192 GB of HBM3 on an 8192-bit bus. The Arc B770 has 512.0 GB/s from 16 GB of GDDR6 on a 256-bit bus. The MI300X offers roughly twenty times the bandwidth.

Q: Does the Intel Arc B770 support ray tracing?

A: Yes. It has 32 ray tracing cores and supports DirectX 12 Ultimate (12_2), which includes ray tracing features. The MI300X has no ray tracing cores listed.

Q: What are the power requirements for each card?

A: The MI300X has a TDP of 750 W and requires a suggested PSU of 1150 W. The Arc B770 has a TDP of 225 W and requires a suggested PSU of 550 W. The MI300X is an OAM module with no power connectors, while the Arc B770 uses a 1x 6-pin plus 1x 8-pin setup.

Q: Which GPU has more shading units?

A: The MI300X has 19,456 shading units. The Arc B770 has 4,096 shading units. The MI300X also has 1,216 TMUs versus 256 TMUs for the Arc B770.

Q: What is the release timeline for these products?

A: The MI300X has a release date of December 5, 2023. The Arc B770 has a release date of December 31, 2025. The MI300X lists its predecessor as FirePro Data Center, while the Arc B770 lists Alchemist as its predecessor.

Specification Differences

The following fields differ between the two products, based on the database records:

• Chip: Aqua Vanjaram (AMD) versus BMG-G31 (Intel)
• Architecture: CDNA 3.0 versus Xe2-HPG
• Generation: Radeon Instinct (MIx) versus Battlemage (Arc 7)
• Transistors: 153,000 million versus unknown
• Die Size: 1017 mm² versus 368 mm²
• Transistor Density: 150.4M / mm² versus not recorded
• Base Clock: 1000 MHz versus 2100 MHz
• Boost Clock: 2100 MHz versus 2400 MHz
• Memory Clock: 2525 MHz (10.1 Gbps effective) versus 2000 MHz (16 Gbps effective)
• Memory Size: 192 GB versus 16 GB
• Memory Type: HBM3 versus GDDR6
• Memory Bus Width: 8192 bit versus 256 bit
• Memory Bandwidth: 10.3 TB/s versus 512.0 GB/s
• Shading Units: 19,456 versus 4,096
• TMUs: 1,216 versus 256
• ROPs: 0 versus 128
• RT Cores: not listed versus 32
• Pixel Rate: 0 MPixel/s versus 307.2 GPixel/s
• Texture Rate: 2,553.6 GTexel/s versus 614.4 GTexel/s
• FP32: 81.72 TFLOPS versus 19.66 TFLOPS
• FP16: 653.7 TFLOPS (8:1) versus 39.32 TFLOPS (2:1)
• TDP: 750 W versus 225 W
• Slot Width: OAM Module versus Dual-slot
• Power Connectors: None versus 1x 6-pin + 1x 8-pin
• Suggested PSU: 1150 W versus 550 W
• Bus Interface: PCIe 5.0 x16 versus PCIe 4.0 x16
• Display Outputs: No outputs versus 1x HDMI 2.1a, 3x DisplayPort 2.1
• DirectX: not listed versus 12 Ultimate (12_2)
• OpenGL: not listed versus 4.6
• Vulkan: not listed versus 1.4
• Release Date: 2023-12-05 versus 2025-12-31
• Predecessor: FirePro Data Center versus Alchemist

The Verdict

The data points to two separate use cases with no meaningful overlap. The AMD Radeon Instinct MI300X is a compute accelerator with 192 GB of HBM3, 10.3 TB/s of bandwidth, and 81.72 TFLOPS of FP32 throughput. It has no display outputs, no graphics API support, and no rasterization capability. It is designed for server racks where power draw of 750 W and an OAM form factor are acceptable. The 153,000 million transistor count and 1017 mm² die size confirm a chip built for maximum parallel compute density.

The Intel Arc B770 is a consumer GPU with 16 GB of GDDR6, 512.0 GB/s of bandwidth, and 19.66 TFLOPS of FP32 throughput. It has 128 ROPs, 32 ray tracing cores, full display outputs, and support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. It fits in a dual-slot PCIe 4.0 x16 slot, uses standard power connectors, and requires a 550 W PSU. It is designed for gaming and desktop graphics workloads.

The choice between them is not a performance trade-off but a form factor and workload decision. Any workload that requires rendering to a display must use the Arc B770. Any workload that requires more than 16 GB of memory or bandwidth beyond 512.0 GB/s must use the MI300X. The FP32 and FP16 compute advantages of the MI300X are irrelevant to a user who needs a graphics card, and the Arc B770’s rasterization and ray tracing features are irrelevant to a data center operator running compute kernels.

The release dates also separate them: the MI300X launched in December 2023, while the Arc B770 is dated December 2025. The MI300X succeeds FirePro Data Center products, and the Arc B770 succeeds Alchemist. The database records no benchmark scores for either, so performance claims beyond the listed specifications cannot be verified. For a system builder, the decision rests on whether the task involves pixel output and graphics APIs (Arc B770) or massive memory and compute throughput in a server context (MI300X).