ATI Mobility Radeon HD 3850 X2
AMD graphics card specifications and benchmark scores
At a Glance
AMDATI Mobility Radeon HD 3850 X2 Specifications
ATI Mobility Radeon HD 3850 X2 GPU Core
Shader units and compute resources
The ATI Mobility Radeon HD 3850 X2 GPU core specifications define its raw processing power for graphics and compute workloads. Shading units (also called CUDA cores, stream processors, or execution units depending on manufacturer) handle the parallel calculations required for rendering. TMUs (Texture Mapping Units) process texture data, while ROPs (Render Output Units) handle final pixel output. Higher shader counts generally translate to better GPU benchmark performance, especially in demanding games and 3D applications.
ATI Mobility Radeon HD 3850 X2 Clock Speeds
GPU and memory frequencies
Clock speeds directly impact the ATI Mobility Radeon HD 3850 X2's performance in GPU benchmarks and real-world gaming. The base clock represents the minimum guaranteed frequency, while the boost clock indicates peak performance under optimal thermal conditions. Memory clock speed affects texture loading and frame buffer operations. The ATI Mobility Radeon HD 3850 X2 by AMD dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.
AMD's ATI Mobility Radeon HD 3850 X2 Memory
VRAM capacity and bandwidth
VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The ATI Mobility Radeon HD 3850 X2's memory capacity determines how well it handles high-resolution textures and multiple displays. Memory bandwidth, measured in GB/s, affects how quickly data moves between the GPU and VRAM. Higher bandwidth improves performance in memory-intensive scenarios like 4K gaming. The memory bus width and type (GDDR6, GDDR6X, HBM) significantly influence overall GPU benchmark scores.
ATI Mobility Radeon HD 3850 X2 by AMD Cache
On-chip cache hierarchy
On-chip cache provides ultra-fast data access for the ATI Mobility Radeon HD 3850 X2, reducing the need to fetch data from slower VRAM. L1 and L2 caches store frequently accessed data close to the compute units. AMD's Infinity Cache (L3) dramatically increases effective bandwidth, improving GPU benchmark performance without requiring wider memory buses. Larger cache sizes help maintain high frame rates in memory-bound scenarios and reduce power consumption by minimizing VRAM accesses.
ATI Mobility Radeon HD 3850 X2 Theoretical Performance
Compute and fill rates
Theoretical performance metrics provide a baseline for comparing the ATI Mobility Radeon HD 3850 X2 against other graphics cards. FP32 (single-precision) performance, measured in TFLOPS, indicates compute capability for gaming and general GPU workloads. FP64 (double-precision) matters for scientific computing. Pixel and texture fill rates determine how quickly the GPU can render complex scenes. While real-world GPU benchmark results depend on many factors, these specifications help predict relative performance levels.
TeraScale Architecture & Process
Manufacturing and design details
The ATI Mobility Radeon HD 3850 X2 is built on AMD's TeraScale architecture, which defines how the GPU processes graphics and compute workloads. The manufacturing process node affects power efficiency, thermal characteristics, and maximum clock speeds. Smaller process nodes pack more transistors into the same die area, enabling higher performance per watt. Understanding the architecture helps predict how the ATI Mobility Radeon HD 3850 X2 will perform in GPU benchmarks compared to previous generations.
AMD's ATI Mobility Radeon HD 3850 X2 Power & Thermal
TDP and power requirements
Power specifications for the ATI Mobility Radeon HD 3850 X2 determine PSU requirements and thermal management needs. TDP (Thermal Design Power) indicates the heat output under typical loads, guiding cooler selection. Power connector requirements ensure adequate power delivery for stable operation during demanding GPU benchmarks. The suggested PSU wattage accounts for the entire system, not just the graphics card. Efficient power delivery enables the ATI Mobility Radeon HD 3850 X2 to maintain boost clocks without throttling.
ATI Mobility Radeon HD 3850 X2 by AMD Physical & Connectivity
Dimensions and outputs
Physical dimensions of the ATI Mobility Radeon HD 3850 X2 are critical for case compatibility. Card length, height, and slot width determine whether it fits in your chassis. The PCIe interface version affects bandwidth for communication with the CPU. Display outputs define monitor connectivity options, with modern cards supporting multiple high-resolution displays simultaneously. Verify these specifications against your case and motherboard before purchasing to ensure a proper fit.
AMD API Support
Graphics and compute APIs
API support determines which games and applications can fully utilize the ATI Mobility Radeon HD 3850 X2. DirectX 12 Ultimate enables advanced features like ray tracing and variable rate shading. Vulkan provides cross-platform graphics capabilities with low-level hardware access. OpenGL remains important for professional applications and older games. CUDA (NVIDIA) and OpenCL enable GPU compute for video editing, 3D rendering, and scientific applications. Higher API versions unlock newer graphical features in GPU benchmarks and games.
ATI Mobility Radeon HD 3850 X2 Product Information
Release and pricing details
The ATI Mobility Radeon HD 3850 X2 is manufactured by AMD as part of their graphics card lineup. Release date and launch pricing provide context for comparing GPU benchmark results with competing products from the same era. Understanding the product lifecycle helps evaluate whether the ATI Mobility Radeon HD 3850 X2 by AMD represents good value at current market prices. Predecessor and successor information aids in tracking generational improvements and planning future upgrades.
ATI Mobility Radeon HD 3850 X2 Benchmark Scores
No benchmark data available for this GPU.
About ATI Mobility Radeon HD 3850 X2
The ATI Mobility Radeon HD 3850 X2 is a mobile graphics processor from AMD, belonging to the M8x (Mobility HD 3800) generation and built on the M88 chip with the TeraScale architecture. The database profile is striking in what it omits: the benchmarks array is empty, the average benchmark score is 0, and the nearestRivals list is empty, leaving the 50th percentile rank as the only comparative marker. This entry is therefore defined by its silicon specifications rather than by measured performance, and the sections below read those specifications closely.
Memory Subsystem — VRAM size/type, bus width, bandwidth and what it means for high resolutions
The memory subsystem is a 512 MB GDDR3 configuration on a 256-bit bus. The memory clock is 750 MHz, with a 1500 Mbps effective data rate, and the listed bandwidth is 48.00 GB/s. These three values are internally coherent: a 256-bit data path at 1500 Mbps produces exactly the recorded 48.00 GB/s. That consistency suggests the memory controller, bus width, and clock were matched deliberately rather than thrown together. For high resolutions, the outlook is tighter. The frame buffer is fixed at 512 MB, which is a hard storage ceiling for color data, depth data, texture working sets, and geometry buffers. When that capacity is exceeded, the GPU must fall back on an external memory path that cannot operate at 48.00 GB/s; the result is a stall-prone situation. The bandwidth itself is a second limit, because every additional pixel at higher resolutions adds fetch and write traffic that competes for the same 48.00 GB/s. The 256-bit bus is the strongest single element in this design — it gives a wide path for data movement — but a wide path cannot compensate for a 1500 Mbps effective rate or a 512 MB pool. The GPU was clearly intended to operate within these boundaries; the database does not specify which resolutions those are, but the hardware limits are unambiguous.
Ray Tracing and Feature Set
The feature set is a direct reflection of the era. The FACT PACK lists no ray tracing cores and no tensor cores — both fields are null. There is also no Vulkan support. The available API surface is DirectX 10.1 (10_1) and OpenGL 3.3. The underlying design is the TeraScale architecture with the M88 chip, comprising 320 shading units, 16 texture mapping units, and 16 ROPs. Without dedicated ray tracing hardware, any ray-related workload would need to run on the general-purpose shading units, and even then it would be limited to the DirectX 10.1 or OpenGL 3.3 feature sets, which contain no ray traversal primitives. The raw capability figures paint the same picture: 371.2 GFLOPS of FP32 arithmetic, 9.280 GPixel/s pixel throughput, and 9.280 GTexel/s texture throughput. These are classic rasterization numbers. The identical pixel and texture rates at 9.280 imply that the 16 TMUs and 16 ROPs are being fed at the same cadence, a design pattern typical of a balanced raster pipeline. There is no tensor core side for AI-derived workloads and no RT core side for ray tracing; this is a GPU built for conventional graphics processing under the DirectX 10.1 and OpenGL 3.3 feature set.
Power and Cooling
The power data is sparse but unambiguous. The TDP is 70 W, and it is the only power figure in the record. No slot width, no power connectors, and no suggested PSU are listed. For a mobile part, that absence makes sense: the laptop chassis handles cooling and power delivery, so board-level connector guidance is not applicable. The 70 W TDP is a static value rather than a dynamic range, since the database lists no base clock, boost clock, or game clock. Behind that 70 W envelope sits a 55 nm TSMC chip with 666 million transistors and a die size of 192 mm². The production status is end-of-life, and the display outputs are described as portable-device dependent, reinforcing that this GPU was not a standalone add-in board with standardized output headers. The bus interface is PCIe 2.0 x16, which is a platform-level detail set by the host laptop. The power story is therefore short: a 70 W mobile part, with no connector or PSU guidance in the data.
How It Compares
The comparison section of the FACT PACK is an empty list. nearestRivals contains no names, no scores, and no deltaPct values, so there is no database-supported way to position this GPU against other models. That absence is significant, and the analysis must be honest about it. The only positional markers are generational: the predecessor is M7x, the successor is M9x, and this GPU sits in the M8x (Mobility HD 3800) generation. The chip is M88, and the architecture is TeraScale. The release date is 2008-06-03, and the production status is end-of-life. The PCIe 2.0 x16 interface is the only host-level detail that hints at the platform generation. With no nearestRivals data, the most robust comparative statement available is internal to the product line: this is a mobile GPU between M7x and M9x, released 2008-06-03, and now marked end-of-life.
Benchmark Performance
The benchmark record is the central oddity of this entry. The benchmarks array is empty, and the average benchmark score is listed as 0. With no nearestRivals, there are no exact percentage deltas to report and no rival scores to analyze. The percentileVsAllGpus value of 50 is thus a position without visible supporting evidence; it places the GPU at the midpoint of the database, but the score data does not indicate how that rank was reached. The only performance-related numbers on hand are silicon-level ceilings: 371.2 GFLOPS FP32, 9.280 GPixel/s pixel rate, and 9.280 GTexel/s texture rate. These are theoretical throughput limits, not application results. The equality of the pixel and texture rates at 9.280 is notable, because it suggests the pipeline moves pixels and texels at the same pace across the 16 ROPs and 16 TMUs. The FP32 figure of 371.2 GFLOPS describes maximum shader arithmetic capacity, but it cannot by itself predict frame rates. The API constraints — DirectX 10.1 (10_1) and OpenGL 3.3, with no Vulkan — also mean that any benchmark built on a newer API generation would not apply to this hardware. The data yields a capability profile, but no measured performance profile.
FAQ
Q: How much memory does the ATI Mobility Radeon HD 3850 X2 have, and what is its bandwidth?
A: It has 512 MB of GDDR3 on a 256-bit bus, with a memory clock of 750 MHz and a 1500 Mbps effective data rate, producing 48.00 GB/s of bandwidth.
Q: Does this GPU support ray tracing?
A: No. The database lists no ray tracing cores and no tensor cores, and the API set is DirectX 10.1 (10_1) and OpenGL 3.3 with no Vulkan support.
Q: What chip and architecture are behind this GPU?
A: The chip is the M88, based on the TeraScale architecture, manufactured by TSMC on a 55 nm process with 666 million transistors on a 192 mm² die.
Q: What is the power draw of this mobile GPU?
A: The TDP is 70 W. No power connector, slot width, or suggested PSU is listed in the database.
Q: When was this GPU released, and is it still in production?
A: The release date is 2008-06-03, and the production status is end-of-life.
Q: Are there any benchmark scores for this GPU?
A: No. The benchmarks array is empty, the average benchmark score is 0, and the nearestRivals list is empty, so there are no scores or rival deltas to compare.
Who Should Consider It
Without benchmark scores, any recommendation must be grounded in the recorded specifications. The 512 MB memory pool and 48.00 GB/s bandwidth place a firm limit on how much frame data can be staged on the GPU and how quickly it can move, suggesting that the highest-resolution workloads would exhaust capacity before the processing rates become the bottleneck. The 371.2 GFLOPS FP32 throughput and 9.280 GPixel/s pixel rate define the raw output ceiling, while the 9.280 GTexel/s texture rate bounds texture work. The API surface of DirectX 10.1 (10_1) and OpenGL 3.3, with no Vulkan, means only software targeting those interfaces is relevant. The 70 W TDP and portable-device-dependent display outputs point to a laptop-class implementation rather than a desktop expansion card. The end-of-life production status and 2008-06-03 release date mark this as a legacy part. Anyone considering this GPU today should treat it as a mid-range mobile part of its generation — a 50th percentile position in the database, but one unsupported by any benchmark entry — and should target software and resolution levels that fit within 512 MB of video memory and the DirectX 10.1/OpenGL 3.3 feature set.
The NVIDIA Equivalent of ATI Mobility Radeon HD 3850 X2
Looking for a similar graphics card from NVIDIA? The NVIDIA GeForce RTX 2080 offers comparable performance and features in the NVIDIA lineup.
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