AMD Radeon 8065S vs AMD Radeon RX 7800 XT Comparison

AMD Radeon 8065S and AMD Radeon RX 7800 XT are two very different AMD graphics solutions, one designed for mobile integration and the other for dedicated desktop use. The database records show a clear split in their design goals, with the RX 7800 XT possessing far greater raw compute resources and memory bandwidth, while the 8065S focuses on a dramatically lower power envelope and a newer architecture process.

FAQ

Q: What are the architectural generations of the AMD Radeon 8065S and the AMD Radeon RX 7800 XT?

A: The AMD Radeon 8065S uses the RDNA 3.5 architecture and is part of the Navi Mobile (RX 8000M) generation. The AMD Radeon RX 7800 XT uses the RDNA 3.0 architecture and belongs to the Navi III (RX 7000) series.

Q: Which GPU has a higher boost clock speed?

A: The AMD Radeon 8065S has a higher boost clock of 3000 MHz, while the AMD Radeon RX 7800 XT has a boost clock of 2430 MHz and a game clock of 2124 MHz.

Q: How much memory does the AMD Radeon RX 7800 XT have?

A: The AMD Radeon RX 7800 XT is equipped with 16 GB of GDDR6 memory on a 256-bit bus, providing 624.1 GB/s of bandwidth. The Radeon 8065S uses system shared memory, making its bandwidth system dependent.

Q: What is the power consumption difference between the two cards?

A: The AMD Radeon 8065S has a TDP of 55 W, while the AMD Radeon RX 7800 XT has a TDP of 263 W and requires a 600 W suggested power supply.

Q: What is the manufacturing process for each chip?

A: The AMD Radeon 8065S is fabricated on a 4 nm process at TSMC. The AMD Radeon RX 7800 XT uses a 5 nm process, also at TSMC.

Q: Which GPU has more shading units and ray tracing cores?

A: The AMD Radeon RX 7800 XT has significantly more, with 3840 shading units and 60 ray tracing cores, compared to the 2560 shading units and 40 ray tracing cores on the AMD Radeon 8065S.

Architecture Differences

The AMD Radeon 8065S is built on the newer RDNA 3.5 architecture, representing the Navi Mobile generation. Its chip is codenamed Gorgon Halo and is fabricated on a modern 4 nm process at TSMC. This chip has a die size of 308 mm², and the database lists its transistor count as unknown. The architecture is a clear step forward in terms of process node, offering better efficiency potential than the previous generation.

In contrast, the AMD Radeon RX 7800 XT is based on the RDNA 3.0 architecture, part of the Navi III series. Its chip, Navi 32, is built on a larger 5 nm process and has a die size of 346 mm². The transistor count for the RX 7800 XT is substantial at 28,100 million, with a transistor density of 81.2M per mm². This older process node means the RX 7800 XT requires more power to achieve its performance levels.

A major difference lies in memory architecture. The 8065S relies entirely on system shared memory, with its bandwidth described as system dependent. This is typical for an integrated graphics processor (IGP), which shares the main system memory pool. The RX 7800 XT, however, is a dedicated card with 16 GB of dedicated GDDR6 memory on a 256-bit bus, delivering a fixed 624.1 GB/s of bandwidth. This dedicated memory is a critical advantage for high-resolution gaming and texture-heavy workloads.

The core configurations differ significantly. The RX 7800 XT features 3840 shading units, 240 texture mapping units (TMUs), and 96 raster output units (ROPs). It also has 60 ray tracing cores. The 8065S has fewer resources, with 2560 shading units, 160 TMUs, and 64 ROPs, along with 40 ray tracing cores. These numbers directly translate into the compute throughput figures, where the RX 7800 XT's FP32 performance is listed at 37.32 TFLOPS, while the 8065S delivers 15.36 TFLOPS.

Another key distinction is the power and physical design. The 8065S is an IGP with a 55 W TDP, no power connectors, and a slot width of IGP, meaning it is integrated into the motherboard and requires no additional power cables. The RX 7800 XT is a dual-slot card with a 263 W TDP, uses two 8-pin power connectors, and measures 267 mm in length, 111 mm in height, and 50 mm in width. The 8065S uses a PCIe 5.0 x16 bus interface, while the RX 7800 XT uses the older PCIe 4.0 x16 standard.

Head-to-Head Benchmarks

The database provides benchmark results for the AMD Radeon RX 7800 XT, but the AMD Radeon 8065S has no recorded benchmark scores. As a result, the head-to-head comparison relies on the absolute performance data of the RX 7800 XT and its position among rivals. The RX 7800 XT's average benchmark score is 11627, placing it in the 51st percentile of all GPUs in the database.

Looking at specific tests, the RX 7800 XT achieves a strong score in Geekbench Vulkan with 54228 points, indicating solid performance in Vulkan API workloads. Its Geekbench OpenCL score is 18290. In the 3DMark Steel Nomad DX12 test, it scores 4157. The PassMark suite shows a G3D score of 24176 and a GPU Compute score of 13473. These results demonstrate a capable mid-range to upper-mid-range dedicated graphics card.

The RX 7800 XT's nearest rivals in the database provide context for its standing. It sits just behind the NVIDIA GeForce GTX 1660, which has an average score of 11680, a delta of -0.5 percent. This is a near tie, indicating the RX 7800 XT performs on par with this older NVIDIA card in the database's average scoring. It is slightly ahead of the AMD Radeon Pro 5500M, which scores 11528, a delta of 0.9 percent. The RX 7800 XT also leads the NVIDIA Tesla K20c, which scores 11479, a delta of 1.3 percent. Against the AMD Radeon RX 6500 XT, which scores 11842, the RX 7800 XT trails by -1.8 percent.

Since the 8065S has no benchmarks, its performance must be inferred from its specifications. Its 15.36 TFLOPS FP32 rate is less than half of the RX 7800 XT's 37.32 TFLOPS. The 8065S also has a lower pixel rate of 192.0 GPixel/s versus 233.3 GPixel/s, and a lower texture rate of 480.0 GTexel/s versus 583.2 GTexel/s. These numbers indicate that the RX 7800 XT will be significantly faster in most GPU-bound workloads, especially those that benefit from raw throughput and dedicated memory bandwidth.

Specification Differences

The AMD Radeon 8065S and AMD Radeon RX 7800 XT differ across nearly every major specification category.

• Architecture: The 8065S uses RDNA 3.5, while the RX 7800 XT uses RDNA 3.0.
• Process Node: The 8065S is on a 4 nm process; the RX 7800 XT is on a 5 nm process.
• Die Size: The 8065S has a die size of 308 mm²; the RX 7800 XT has a die size of 346 mm².
• Transistors: The 8065S transistor count is unknown; the RX 7800 XT has 28,100 million transistors.
• Boost Clock: The 8065S boosts to 3000 MHz; the RX 7800 XT boosts to 2430 MHz.
• Game Clock: The 8065S has no game clock listed; the RX 7800 XT has a game clock of 2124 MHz.
• Memory: The 8065S uses system shared memory; the RX 7800 XT has 16 GB of GDDR6.
• Memory Bus: The 8065S bus width is system shared; the RX 7800 XT uses a 256-bit bus.
• Memory Bandwidth: The 8065S bandwidth is system dependent; the RX 7800 XT has 624.1 GB/s.
• Shading Units: The 8065S has 2560; the RX 7800 XT has 3840.
• TMUs: The 8065S has 160; the RX 7800 XT has 240.
• ROPs: The 8065S has 64; the RX 7800 XT has 96.
• Ray Tracing Cores: The 8065S has 40; the RX 7800 XT has 60.
• Pixel Rate: The 8065S is 192.0 GPixel/s; the RX 7800 XT is 233.3 GPixel/s.
• Texture Rate: The 8065S is 480.0 GTexel/s; the RX 7800 XT is 583.2 GTexel/s.
• FP32 Performance: The 8065S is 15.36 TFLOPS; the RX 7800 XT is 37.32 TFLOPS.
• TDP: The 8065S is 55 W; the RX 7800 XT is 263 W.
• Slot Width: The 8065S is an IGP; the RX 7800 XT is dual-slot.
• Power Connectors: The 8065S has none; the RX 7800 XT uses 2x 8-pin.
• Bus Interface: The 8065S is PCIe 5.0 x16; the RX 7800 XT is PCIe 4.0 x16.
• Release Date: The 8065S was released later, on 2025-12-31; the RX 7800 XT was released on 2023-09-05.
• Launch MSRP: The 8065S has no launch MSRP; the RX 7800 XT has a launch MSRP of 499 USD.

The Verdict

The data presents two GPUs with divergent purposes. The AMD Radeon 8065S is an integrated processor solution with a 55 W TDP, designed for portability and low power consumption. It uses the newer 4 nm RDNA 3.5 architecture and has a high boost clock of 3000 MHz, but its performance is constrained by its shared memory system and lower compute unit count. Its FP32 throughput of 15.36 TFLOPS is substantial for an IGP, yet it lacks the dedicated VRAM required for demanding gaming at high settings.

The AMD Radeon RX 7800 XT is a dedicated desktop card that prioritizes raw performance. Its 37.32 TFLOPS FP32 rate, 16 GB of GDDR6 memory, and 624.1 GB/s bandwidth make it a far more capable solution for high-resolution gaming and compute-heavy tasks. The benchmark data confirms its position, with an average score of 11627 and a percentile rank of 51, placing it in the middle of the database's GPU performance spectrum. Its nearest rivals, such as the NVIDIA GeForce GTX 1660 and AMD Radeon RX 6500 XT, sit within a 1.8 percent delta, showing that the RX 7800 XT is competitive within its performance class.

Users needing a compact, low-power integrated graphics solution for a portable device would find the 8065S appropriate, provided their workloads fit within the constraints of shared memory. Those requiring maximum frame rates and dedicated graphics memory for a desktop system would select the RX 7800 XT, which also offers a wider range of display outputs including 1x HDMI 2.1a and 3x DisplayPort 2.1. The RX 7800 XT's 263 W TDP and 600 W suggested PSU are necessary for its higher performance, whereas the 8065S requires no additional power connectors. The choice is clear: the 8065S for integrated efficiency, the RX 7800 XT for dedicated performance.