AMD Radeon 8065S vs Intel Arc B770 Comparison

Head-to-Head Benchmarks

The database does not contain direct head-to-head benchmark scores for the AMD Radeon 8065S and Intel Arc B770. Neither part has recorded average benchmark scores nor nearest rival comparisons, and the wins tally sits at zero for both. The only measurable points of comparison come from the raw specification data, which reveals a clear split in design philosophy. The Intel Arc B770 posts a higher FP32 throughput at 19.66 TFLOPS, while the AMD Radeon 8065S delivers 15.36 TFLOPS. That difference translates to a 28% advantage for Intel in raw single-precision compute. In FP16 work, the gap widens dramatically: Intel reaches 39.32 TFLOPS with a 2:1 rate, while AMD matches its FP32 figure at 15.36 TFLOPS with a 1:1 rate. The Intel part runs 156% ahead in half-precision throughput.

Pixel throughput tells a similar story. The Arc B770 reaches 307.2 GPixel/s, which is 60% higher than the Radeon's 192.0 GPixel/s. Texture fill rates also favor Intel, with 614.4 GTexel/s against 480.0 GTexel/s, a 28% lead. These numbers suggest that in any workload that scales directly with shading units, texture mapping, or rasterization, the Intel card holds a decisive edge. The Radeon 8065S, however, counters with a significantly higher boost clock: 3000 MHz versus 2400 MHz, a 25% advantage. That clock speed partially offsets the AMD part's lower unit counts, but the sheer scale of Intel's hardware resources (4096 shading units, 256 TMUs, 128 ROPs) overwhelms the AMD configuration (2560 shading units, 160 TMUs, 64 ROPs).

Architecture Differences

The two GPUs come from different architectural lineages and manufacturing processes. AMD uses RDNA 3.5 on a 4 nm TSMC node, built as the "Gorgon Halo" chip within the Navi Mobile (RX 8000M) generation. Intel counters with Xe2-HPG on a 5 nm TSMC node, using the "BMG-G31" die from the Battlemage (Arc 7) generation. The die sizes reflect their respective designs: AMD measures 308 mm², while Intel is larger at 368 mm², a 19% difference in physical area. Both are fabricated by TSMC, but the AMD part uses the denser 4 nm process.

Memory architecture separates the two fundamentally. The Radeon 8065S uses system-shared memory, with no dedicated VRAM, no fixed bus width, and bandwidth listed as system dependent. The Arc B770 features 16 GB of GDDR6 memory on a 256-bit bus, delivering 512.0 GB/s of dedicated bandwidth. This is a critical distinction for workloads that rely on memory capacity or sustained bandwidth, as the Intel part has a fixed, high-performance memory subsystem while AMD depends entirely on the host platform's memory configuration.

Ray tracing hardware also differs in count. AMD implements 40 RT cores, while Intel uses 32. The AMD part's higher RT core count may help in ray-traced scenes, though the Intel card's overall compute advantage could offset that. Neither part lists tensor cores, so AI acceleration comparisons cannot be made from the data. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API compatibility is identical. The Radeon 8065S connects via PCIe 5.0 x16, while the Arc B770 uses PCIe 4.0 x16, giving AMD a newer bus interface.

Power characteristics diverge sharply. The Radeon 8065S is an integrated graphics processor with a 55 W TDP, no power connectors, and an IGP slot width. The Arc B770 is a dual-slot discrete card with a 225 W TDP, requiring one 6-pin and one 8-pin power connector, with a suggested 550 W power supply. The Intel part consumes roughly four times the power budget of the AMD part, which aligns with its larger die, dedicated memory, and higher fill rates. The Radeon's display outputs are portable-device dependent, while the Arc B770 offers 1x HDMI 2.1a and 3x DisplayPort 2.1.

Where Each One Wins

The Intel Arc B770 wins in every raw throughput metric recorded in the database. Its FP32 compute is 28% higher, FP16 compute is 156% higher, pixel rate is 60% higher, and texture rate is 28% higher. The 16 GB GDDR6 memory with 512.0 GB/s bandwidth gives it a fixed advantage in memory-bound workloads, and the 128 ROPs make it better suited for high-resolution rasterization. The Arc B770 is the clear choice for any workload that leverages its 4096 shading units and 256 TMUs, which includes traditional 3D rendering, compute shaders, and heavy texture sampling. Its dual-slot design and dedicated power connectors indicate it is meant for desktop systems with adequate cooling and power delivery.

The AMD Radeon 8065S wins on efficiency and integration. At 55 W TDP, it consumes only 24% of the Intel part's power envelope, making it suitable for portable devices where space and thermal limits matter. Its 3000 MHz boost clock is the highest recorded in this comparison, and the 40 RT cores exceed Intel's 32. The PCIe 5.0 x16 interface provides double the bandwidth of the Arc B770's PCIe 4.0 x16, which may benefit data transfer in systems that support it. The system-shared memory approach means the Radeon can draw on whatever memory capacity the host provides, which could be larger than 16 GB in some configurations, though bandwidth remains system dependent. For thin-and-light laptops or compact form factors, the 8065S delivers meaningful graphics capability without discrete card overhead.

The Arc B770 also leads in memory bandwidth by a wide margin: 512.0 GB/s versus a system-dependent figure that typically falls below dedicated VRAM bandwidth. For 1440p or 4K gaming, high-resolution texture streaming, or compute workloads that repeatedly access large datasets, the Intel card's dedicated memory subsystem is the stronger option. The Radeon's boost clock advantage may help in lightly threaded or latency-sensitive scenarios, but the data does not provide benchmark confirmation of that behavior.

FAQ

Q: Which GPU has higher raw compute performance?

A: The Intel Arc B770 posts 19.66 TFLOPS FP32, while the AMD Radeon 8065S reaches 15.36 TFLOPS. Intel leads by 28%. In FP16, Intel's 39.32 TFLOPS is 156% higher than AMD's 15.36 TFLOPS.

Q: How do their memory systems compare?

A: The Arc B770 has 16 GB of GDDR6 on a 256-bit bus with 512.0 GB/s bandwidth. The Radeon 8065S uses system-shared memory with no dedicated VRAM, bus width, or fixed bandwidth; its memory performance is system dependent.

Q: What are the power requirements for each card?

A: The Radeon 8065S has a 55 W TDP and needs no power connectors. The Arc B770 has a 225 W TDP, requires one 6-pin and one 8-pin connector, and suggests a 550 W power supply.

Q: Which GPU has more ray tracing cores?

A: The AMD Radeon 8065S has 40 RT cores, while the Intel Arc B770 has 32. AMD leads in RT core count by 8.

Q: Do they support the same APIs?

A: Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. API compatibility is identical across the two.

Q: What bus interfaces do they use?

A: The AMD Radeon 8065S uses PCIe 5.0 x16, while the Intel Arc B770 uses PCIe 4.0 x16. AMD's bus interface is one generation newer.

The Verdict

The data presents two distinct products aimed at different use cases. The Intel Arc B770 is a dedicated, dual-slot discrete GPU with a 225 W TDP, dedicated 16 GB GDDR6 memory, and dominant compute metrics across the board. Its 19.66 TFLOPS FP32, 307.2 GPixel/s pixel rate, and 614.4 GTexel/s texture rate make it the stronger performer for any workload that fits within a desktop chassis with a 550 W power supply. The 4096 shading units and 128 ROPs give it a substantial hardware resource advantage, and the 512.0 GB/s memory bandwidth removes any platform dependency for memory performance.

The AMD Radeon 8065S is an integrated graphics solution with a 55 W TDP, designed for portable devices. Its 3000 MHz boost clock is the highest in this comparison, and the 40 RT cores exceed the Intel part. The system-shared memory approach offers flexibility in capacity, and the PCIe 5.0 x16 interface is newer than Intel's PCIe 4.0. However, its 15.36 TFLOPS FP32 and 192.0 GPixel/s pixel rate are measurably lower, and the lack of dedicated memory means bandwidth is contingent on the host platform.

Users who need maximum frame rates, high-resolution rendering, or compute throughput should select the Arc B770 based on its specification advantages. Users who require graphics in a compact, power-constrained portable system should choose the Radeon 8065S, as its 55 W TDP and integrated form factor make it the only viable option for such devices. The two parts do not compete directly; the Arc B770 targets desktop performance, while the Radeon 8065S targets mobile integration. Benchmark results would be needed to refine this split, but the recorded specifications point clearly in that direction.