ATI Radeon HD 4850
AMD graphics card specifications and benchmark scores
At a Glance
AMDATI Radeon HD 4850 Specifications
ATI Radeon HD 4850 GPU Core
Shader units and compute resources
The ATI Radeon HD 4850 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 Radeon HD 4850 Clock Speeds
GPU and memory frequencies
Clock speeds directly impact the ATI Radeon HD 4850'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 Radeon HD 4850 by AMD dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.
AMD's ATI Radeon HD 4850 Memory
VRAM capacity and bandwidth
VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The ATI Radeon HD 4850'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 Radeon HD 4850 by AMD Cache
On-chip cache hierarchy
On-chip cache provides ultra-fast data access for the ATI Radeon HD 4850, 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 Radeon HD 4850 Theoretical Performance
Compute and fill rates
Theoretical performance metrics provide a baseline for comparing the ATI Radeon HD 4850 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 Radeon HD 4850 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 Radeon HD 4850 will perform in GPU benchmarks compared to previous generations.
AMD's ATI Radeon HD 4850 Power & Thermal
TDP and power requirements
Power specifications for the ATI Radeon HD 4850 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 Radeon HD 4850 to maintain boost clocks without throttling.
ATI Radeon HD 4850 by AMD Physical & Connectivity
Dimensions and outputs
Physical dimensions of the ATI Radeon HD 4850 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 Radeon HD 4850. 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 Radeon HD 4850 Product Information
Release and pricing details
The ATI Radeon HD 4850 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 Radeon HD 4850 by AMD represents good value at current market prices. Predecessor and successor information aids in tracking generational improvements and planning future upgrades.
ATI Radeon HD 4850 Benchmark Scores
No benchmark data available for this GPU.
About ATI Radeon HD 4850
ATI Radeon HD 4850 is a 55 nm GPU from AMD, built on the TeraScale architecture and fabricated by TSMC. It is based on the RV770 chip and belongs to the Radeon R700 (HD 4800) generation. Released on 2008-06-24, the card packs 956 million transistors on a 256 mm² die, for a transistor density of 3.7M / mm². It uses a PCIe 2.0 x16 interface and offers 2x DVI plus 1x S-Video outputs. Its production status is end-of-life, with Radeon R600 listed as predecessor and Evergreen as successor.
Power and Cooling
The ATI Radeon HD 4850 has a TDP of 110 W. The recommended PSU rating in the database is 300 W, and the card requires exactly one 6-pin PCIe power connector. This is a single-slot card, meaning it occupies one expansion slot rather than the wider footprint of a multi-slot cooler. The board length is 246 mm, or 9.7 inches, so chassis clearance must accommodate a card nearly ten inches long.
The 110 W TDP is the key power figure for system planning. It is paired with a 300 W PSU recommendation, which indicates the rest of the system is expected to fit within that supply capacity. The single 6-pin connector is the only power input, so the card does not require multiple power cables. The single-slot design places physical limits on cooling surface area, and the database does not record any auxiliary cooler specification. In practical terms, a 110 W board with one 6-pin connector and a single-slot cooler needs adequate internal airflow, but the database supplies no cooler performance data beyond the slot width and board dimensions.
Who Should Consider It
The database contains no benchmark scores for this GPU, so resolution- and settings-based recommendations cannot be grounded in measured frame rates. The aggregate benchmark score is 0, and the benchmarks array is empty. As a result, the specification data is the only available basis for identifying who should consider the card.
The HD 4850 provides 800 shading units, 40 texture mapping units, and 16 ROPs. Peak FP32 throughput is 1,000.0 GFLOPS, pixel fill rate is 10.00 GPixel/s, and texture fill rate is 25.00 GTexel/s. That compute and fill-rate package sits behind 512 MB of GDDR3 memory on a 256-bit bus, with memory clocked at 993 MHz and 1986 Mbps effective, producing 63.55 GB/s of bandwidth. The memory capacity is the most obvious limitation for users: workloads that need more than 512 MB of on-board storage will not fit in the frame buffer. The 256-bit bus and 63.55 GB/s bandwidth are substantial enough to feed the shading units, but only up to the memory capacity ceiling.
The API list is DirectX 10.1 (10_1) and OpenGL 3.3. No Vulkan support is listed. This makes the card suitable for software that can operate under DirectX 10.1 or OpenGL 3.3, while software requiring newer API features is outside the listed support. Users with a PCIe 2.0 x16 slot and a case that can fit a 246 mm, single-slot card are the relevant audience. The 512 MB frame buffer means the card is best considered for workloads where memory usage stays below that capacity, rather than for large-texture or high-detail scenarios that would exceed it.
How It Compares
The nearestRivals list for the ATI Radeon HD 4850 is empty. There are no rival names, scores, or deltaPct values in the database record for this GPU. Consequently, no direct comparison against any specific competing card can be made from the available data. The only relative indicator present is percentileVsAllGpus, which is 50. A 50th-percentile rank places the card at the midpoint of the database’s GPU population, but this rank is not attached to any rival-specific score or percentage. Without nearestRivals entries, statements such as “ahead of X by Y percent” cannot be produced from the data. Each potential competitor comparison is therefore omitted.
FAQ
Q: What is the TDP of the ATI Radeon HD 4850?
A: The TDP is 110 W. The recommended PSU rating is 300 W, and the card uses one 6-pin PCIe power connector.
Q: What memory does the HD 4850 use?
A: It uses 512 MB of GDDR3 on a 256-bit bus. The memory clock is 993 MHz, which is 1986 Mbps effective, and peak bandwidth is 63.55 GB/s.
Q: What are the key chip specifications?
A: The RV770 die is fabricated by TSMC on a 55 nm process. It contains 956 million transistors on a 256 mm² die, for a transistor density of 3.7M / mm².
Q: What display outputs are available?
A: The card provides 2x DVI and 1x S-Video outputs. It connects to the system through a PCIe 2.0 x16 interface.
Q: Which APIs are supported?
A: The listed APIs are DirectX 10.1 (10_1) and OpenGL 3.3. No Vulkan support is listed.
Q: When was it released and what was the launch MSRP?
A: The release date is 2008-06-24. The launch MSRP was 199 USD. Production status is end-of-life.
Benchmark Performance
The benchmark data for the ATI Radeon HD 4850 is minimal. The benchmarks array is empty, and the average benchmark score is 0. The percentileVsAllGpus field is 50. A 50th-percentile rank puts the card at the median of all GPUs in the database, but because there is no associated score, the rank cannot be used to infer real-world performance deltas. The nearestRivals list is also empty, so no deltaPct values exist to compare against any named competitor.
The absence of scores means that no percentage differences can be calculated from the available data. The FACT PACK provides no measured frames per second, no synthetic benchmark numbers, and no rival deltas. What it does provide is peak throughput data: FP32 performance is 1,000.0 GFLOPS, pixel fill rate is 10.00 GPixel/s, and texture fill rate is 25.00 GTexel/s. These are architectural limits, not benchmark achievements. Memory bandwidth is 63.55 GB/s, delivered over a 256-bit bus from a 512 MB GDDR3 frame buffer. The shading resources—800 shading units, 40 TMUs, and 16 ROPs—describe the theoretical workload capacity of the chip.
In the absence of measured scores, the database cannot report how the HD 4850 performs in specific titles, resolutions, or quality settings. The 50th-percentile rank is the only aggregate positional figure, and it is a ranking placeholder rather than a derived score. Any performance comparison against rivals is unavailable because no rival data is recorded. The specification block, including the RV770 chip, 55 nm process, 956 million transistors, and 63.55 GB/s memory bandwidth, forms the entirety of the performance-relevant evidence in this record.
The NVIDIA Equivalent of ATI Radeon HD 4850
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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