AMD Radeon 8065S vs AMD Steam Machine GPU Comparison

Head-to-Head Benchmarks

The recorded database contains no head-to-head benchmark entries for the AMD Radeon 8065S versus the AMD Steam Machine GPU. Both parts sit at the 50th percentile among all GPUs in the database, and neither has an average benchmark score recorded. This absence of direct measurements means the comparison must be built from the architectural and specification data available.

What the data does show is a theoretical compute split. The Steam Machine GPU delivers 17.56 TFLOPS of FP32 throughput, which is 2.20 TFLOPS higher than the Radeon 8065S's 15.36 TFLOPS. That margin represents a 14.3% advantage for the Steam Machine part in raw shader math. However, the Radeon 8065S counters in texture work, with 480.0 GTexel/s against 274.4 GTexel/s, a 205.6 GTexel/s gap that translates to a 74.9% lead. Pixel throughput favors the Radeon 8065S as well, 192.0 GPixel/s versus 156.8 GPixel/s, a 35.2 GPixel/s difference or 22.4% higher.

Those numbers reflect different design priorities. The Steam Machine GPU uses fewer shading units, 1792 versus 2560, but clocks them substantially higher, with a 2450 MHz boost against 3000 MHz on the Radeon 8065S. The Radeon 8065S's higher unit count and lower clocks produce its texture and pixel advantages, while the Steam Machine GPU's higher clocks push its FP32 figure ahead.

Memory bandwidth is another decisive split. The Steam Machine GPU has 8 GB of GDDR6 on a 128-bit bus, delivering 288.0 GB/s. The Radeon 8065S uses system shared memory, with bandwidth listed as system dependent. In workloads that saturate memory, the Steam Machine GPU's dedicated GDDR6 offers a fixed, predictable bandwidth figure, while the Radeon 8065S's effective bandwidth will vary with the host platform's memory configuration.

Neither part has recorded wins in the database. The winsA and winsB fields are both zero. This is a comparison defined entirely by specification-level analysis, not measured performance outcomes.

Architecture Differences

The two GPUs come from different RDNA generations. The Radeon 8065S uses RDNA 3.5 on TSMC's 4 nm process, while the Steam Machine GPU uses RDNA 3.0 on TSMC's 6 nm process. That process gap matters for power efficiency and die economics. The Radeon 8065S has a die size of 308 mm², while the Steam Machine GPU is 204 mm². Transistor counts are listed as unknown for the Radeon 8065S, but the Steam Machine GPU carries 13,300 million transistors, giving it a transistor density of 65.2M per mm².

The chip identities differ as well. The Radeon 8065S is built around the Gorgon Halo chip, part of the Navi Mobile (RX 8000M) generation. The Steam Machine GPU uses the Navi 33 chip, codenamed Hotpink Bonefish, and belongs to the Console GPU (Valve) generation. The Radeon 8065S's predecessor is listed as Polaris Mobile, while the Steam Machine GPU has no predecessor entry.

Core configuration shows the Radeon 8065S with 2560 shading units, 160 texture mapping units, 64 raster output units, and 40 ray tracing cores. The Steam Machine GPU has 1792 shading units, 112 texture mapping units, 64 raster output units, and 28 ray tracing cores. The Radeon 8065S leads in shading units by 768, in TMUs by 48, and in RT cores by 12. ROP counts are identical at 64.

Clock behavior favors the Steam Machine GPU in base frequency, 1720 MHz versus 1295 MHz, but the Radeon 8065S has the higher boost at 3000 MHz versus 2450 MHz. The Steam Machine GPU also lists a game clock of 2250 MHz, a figure the Radeon 8065S does not provide. Memory clocks diverge sharply: the Steam Machine GPU runs 2250 MHz with 18 Gbps effective, while the Radeon 8065S depends on system shared memory.

Power consumption shows a major difference. The Radeon 8065S has a 55 W TDP and is an integrated graphics processor with no power connectors. The Steam Machine GPU has a 110 W TDP, also with no power connectors listed. The Radeon 8065S is classified as an IGP with a slot width of IGP, while the Steam Machine GPU's slot width is not listed. The Radeon 8065S uses a PCIe 5.0 x16 bus interface, while the Steam Machine GPU's bus interface is not listed.

Display outputs differ. The Steam Machine GPU provides 1x HDMI 2.1a and 1x DisplayPort 2.1. The Radeon 8065S lists display outputs as portable device dependent, meaning its output configuration depends on the host device. Physical dimensions are only recorded for the Steam Machine GPU: 156 mm by 152 mm by 162 mm. The Radeon 8065S has no length, height, or width recorded.

API support is identical across both parts: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Both are listed as Active in production status. The Radeon 8065S has a release date in 2025, while the Steam Machine GPU's release date is in 2026.

The Verdict

The data indicates two distinct design philosophies. The Radeon 8065S is a power-conscious integrated processor on a newer 4 nm node, with a 55 W TDP, no power connectors, and a portable device dependent display configuration. It offers more shading units, more TMUs, more RT cores, and higher texture and pixel throughput than the Steam Machine GPU. Its memory subsystem is entirely system shared, leaving bandwidth dependent on the host platform.

The Steam Machine GPU is a standalone console GPU on the older 6 nm process, with a 110 W TDP and no power connectors. It has fewer shading units and fewer RT cores, but a higher base clock, a listed game clock, and dedicated 8 GB GDDR6 memory on a 128-bit bus with 288.0 GB/s of bandwidth. Its FP32 throughput of 17.56 TFLOPS exceeds the Radeon 8065S's 15.36 TFLOPS.

For users with a portable device that integrates the Radeon 8065S, the data shows a part that trades raw FP32 compute for texture and pixel rates, and relies entirely on shared system memory. Its 55 W envelope and IGP form factor suit constrained platforms. The Steam Machine GPU, with its dedicated memory and higher FP32 output, suits a console form factor where the 110 W TDP is acceptable and fixed memory bandwidth is required.

The Radeon 8065S wins on texture rate, pixel rate, shading unit count, TMU count, RT core count, process node, and transistor-level efficiency potential (though transistor density is not recorded for it). The Steam Machine GPU wins on FP32 compute, base clock, game clock, dedicated memory bandwidth, and having a recorded physical footprint.

Neither part has benchmark scores or nearest rival entries in the database, so the verdict rests on specifications alone. The Radeon 8065S is the higher-throughput rasterizer per its texture and pixel figures. The Steam Machine GPU is the higher-throughput compute unit per its FP32 figure. The choice depends on whether the workload is memory-bound (Steam Machine GPU) or texture/pixel-bound (Radeon 8065S).

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The AMD Steam Machine GPU, at 17.56 TFLOPS, exceeds the AMD Radeon 8065S's 15.36 TFLOPS.

Q: Which GPU has more shading units?

A: The AMD Radeon 8065S has 2560 shading units, while the AMD Steam Machine GPU has 1792 shading units.

Q: What is the memory configuration difference?

A: The Steam Machine GPU has 8 GB of GDDR6 on a 128-bit bus with 288.0 GB/s bandwidth. The Radeon 8065S uses system shared memory with system dependent bandwidth.

Q: Which GPU has a higher boost clock?

A: The AMD Radeon 8065S boosts to 3000 MHz, while the AMD Steam Machine GPU boosts to 2450 MHz.

Q: What are the TDP figures for each GPU?

A: The Radeon 8065S has a 55 W TDP, and the Steam Machine GPU has a 110 W TDP.

Q: Which GPU has more ray tracing cores?

A: The Radeon 8065S has 40 ray tracing cores, while the Steam Machine GPU has 28 ray tracing cores.

Where Each One Wins

The Radeon 8065S wins in texture throughput with 480.0 GTexel/s, a 74.9% advantage over the Steam Machine GPU's 274.4 GTexel/s. It also wins in pixel rate, 192.0 GPixel/s versus 156.8 GPixel/s, a 22.4% margin. The Radeon 8065S has more shading units (2560 versus 1792), more TMUs (160 versus 112), and more RT cores (40 versus 28). Its 4 nm process node is smaller than the Steam Machine GPU's 6 nm node, and its 55 W TDP is half the Steam Machine GPU's 110 W. The Radeon 8065S uses a PCIe 5.0 x16 interface, while the Steam Machine GPU's bus interface is not listed.

The Steam Machine GPU wins in FP32 compute, 17.56 TFLOPS versus 15.36 TFLOPS, a 14.3% lead. It has a higher base clock at 1720 MHz versus 1295 MHz, and a listed game clock of 2250 MHz that the Radeon 8065S does not provide. Its dedicated 8 GB GDDR6 memory with 288.0 GB/s bandwidth removes the system dependency that the Radeon 8065S's shared memory carries. The Steam Machine GPU also has recorded physical dimensions (156 mm by 152 mm by 162 mm) and fixed display outputs (1x HDMI 2.1a, 1x DisplayPort 2.1), while the Radeon 8065S's outputs are portable device dependent.

The transistor density figure of 65.2M per mm² for the Steam Machine GPU is recorded, while the Radeon 8065S's density is not listed. The Steam Machine GPU's die size of 204 mm² is smaller than the Radeon 8065S's 308 mm², and its transistor count of 13,300 million is recorded, while the Radeon 8065S's count is unknown.

For workloads that depend on texture sampling, pixel fill, or ray tracing core count, the Radeon 8065S delivers higher theoretical throughput. For workloads that depend on FP32 math or require fixed, dedicated memory bandwidth, the Steam Machine GPU holds the advantage. The Radeon 8065S fits a low-power integrated context, and the Steam Machine GPU fits a console context with its 110 W budget and standalone board dimensions.