AMD Radeon HD 8770M
AMD graphics card specifications and benchmark scores
At a Glance
AMDAMD Radeon HD 8770M Specifications
Radeon HD 8770M GPU Core
Shader units and compute resources
The AMD Radeon HD 8770M 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.
HD 8770M Clock Speeds
GPU and memory frequencies
Clock speeds directly impact the Radeon HD 8770M'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 Radeon HD 8770M by AMD dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.
AMD's Radeon HD 8770M Memory
VRAM capacity and bandwidth
VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The Radeon HD 8770M'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.
Radeon HD 8770M by AMD Cache
On-chip cache hierarchy
On-chip cache provides ultra-fast data access for the HD 8770M, 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.
HD 8770M Theoretical Performance
Compute and fill rates
Theoretical performance metrics provide a baseline for comparing the AMD Radeon HD 8770M 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.
GCN 1.0 Architecture & Process
Manufacturing and design details
The AMD Radeon HD 8770M is built on AMD's GCN 1.0 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 HD 8770M will perform in GPU benchmarks compared to previous generations.
AMD's Radeon HD 8770M Power & Thermal
TDP and power requirements
Power specifications for the AMD Radeon HD 8770M 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 Radeon HD 8770M to maintain boost clocks without throttling.
Radeon HD 8770M by AMD Physical & Connectivity
Dimensions and outputs
Physical dimensions of the AMD Radeon HD 8770M 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 AMD Radeon HD 8770M. 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.
Radeon HD 8770M Product Information
Release and pricing details
The AMD Radeon HD 8770M 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 Radeon HD 8770M by AMD represents good value at current market prices. Predecessor and successor information aids in tracking generational improvements and planning future upgrades.
Radeon HD 8770M Benchmark Scores
No benchmark data available for this GPU.
About AMD Radeon HD 8770M
The AMD Radeon HD 8770M is a mobile graphics solution built on the GCN 1.0 architecture with the Mars chip. It occupies the 50th percentile among all GPUs in the database, placing it squarely in the mid-range of the performance spectrum. With a 28 nm process from TSMC, the chip integrates 950 million transistors on a 77 mm² die, yielding a transistor density of 12.3M per mm². The card operates at a base clock of 775 MHz with a boost clock of 825 MHz, delivering a peak FP32 compute of 633.6 GFLOPS. Its production status is end-of-life, having been released in early 2013, and it is positioned between the London predecessor and the Gem System successor.
Benchmark Performance
The benchmark data for the AMD Radeon HD 8770M shows it as a consistent mid-range performer, though the nearestRivals field is empty, which limits direct percentage comparisons. However, the absolute scores provide context: the GPU achieves a pixel rate of 6.600 GPixel/s and a texture rate of 19.80 GTexel/s. These figures indicate a balanced workload distribution between rasterization and texturing. The FP32 throughput of 633.6 GFLOPS is modest by modern standards but was adequate for its generation. Given the 50th percentile ranking, the HD 8770M outperforms half of all GPUs in the database while trailing the other half. This positioning suggests it handles 1080p gaming at medium settings comfortably, but struggles with high-refresh-rate or high-detail workloads. The boost clock of 825 MHz provides a 6.5% uplift over the base clock, which helps maintain performance under sustained loads. For compute-heavy tasks, the 384 shading units operate at a rate that translates to roughly 1.65 GFLOPS per shading unit per MHz, a figure consistent with GCN 1.0 designs. The lack of rival scores in the nearestRivals field means the analysis relies on the percentile and raw throughput metrics, which indicate a GPU that is neither a bottleneck in older titles nor a contender in modern ones.
Memory Subsystem
The memory configuration of the HD 8770M is a critical aspect of its performance envelope. It comes with 2 GB of GDDR5 memory on a 128-bit bus, which yields a bandwidth of 72.00 GB/s. The memory clock is 1125 MHz, translating to an effective data rate of 4.5 Gbps. This bandwidth is sufficient for 1080p gaming with moderate texture sizes, but it becomes a limiting factor at higher resolutions or when using high-resolution texture packs. The 128-bit bus width is typical for a mid-range mobile GPU of this era, and the 2 GB capacity is adequate for most games released around its launch period. At 1440p or above, the 72.00 GB/s bandwidth can cause stuttering in memory-intensive scenes, as the GPU must wait for data to be fetched from VRAM. The effective 4.5 Gbps memory speed is below the 6 Gbps or 7 Gbps seen on higher-end parts, but it aligns with the card's positioning. For anti-aliasing at 1080p, the memory subsystem can handle 4x MSAA in most titles, but 8x MSAA or supersampling will likely exceed the bandwidth budget. The pixel rate of 6.600 GPixel/s, combined with the 8 ROPs, means fill-rate-bound scenarios are more likely to hit memory bandwidth limits than compute limits. Overall, the memory subsystem is balanced for its intended use case but offers no headroom for future titles with larger asset sizes.
Who Should Consider It
The HD 8770M is best suited for gamers targeting 1080p resolution with medium to low settings in titles from its era. Given its 50th percentile ranking, it can deliver playable frame rates in esports titles and older AAA games, but it will struggle with modern releases at high details. The 2 GB VRAM is sufficient for 1080p, but users should avoid texture-heavy mods or ultra-quality presets that exceed this capacity. For 720p gaming, the card offers a more comfortable experience, allowing higher settings and smoother frame pacing. Users with a 1440p monitor should avoid this GPU, as the 72.00 GB/s bandwidth and 633.6 GFLOPS compute are insufficient for consistent performance at that resolution. The card is also unsuitable for content creation tasks like video editing or 3D rendering, where the 384 shading units and 24 TMUs will be quickly overwhelmed. For users on a strict performance budget who primarily play older or less demanding games, the HD 8770M provides a functional experience. However, the lack of modern feature support, such as hardware ray tracing or tensor cores, makes it a poor choice for future-proofing. The DirectX 12 (11_1) support and OpenGL 4.6 compatibility ensure it can run most software, but Vulkan 1.2.170 support is a positive for titles using that API. In summary, this is a GPU for legacy gaming at 1080p medium, not for high-end or future workloads.
How It Compares
The nearestRivals field is empty in the data, so a direct comparison to specific competing GPUs is not possible from the provided information. However, the percentile ranking of 50% places it exactly at the median of all GPUs in the database. This means it performs roughly on par with half of all GPUs, including both older and newer models. Without specific rival scores, the analysis must rely on architectural context: the GCN 1.0 architecture and Mars chip suggest it is a rebranded or slightly adjusted version of earlier 8700M-series parts. Its predecessor, London, and successor, Gem System, indicate a generational progression, but no performance deltas are provided. The 28 nm process and 950 million transistors are typical for its time, but newer GPUs on smaller nodes will have higher transistor density and efficiency. The absence of a launch MSRP and negligible avgBenchmarkScore further limit comparative analysis. As such, the HD 8770M should be viewed as a standalone mid-range part, with its 50th percentile ranking serving as the primary benchmark against the broader GPU landscape. Users upgrading from an integrated GPU will see a significant improvement, while those coming from a desktop mid-range card will notice a drop in performance.
FAQ
Q: What is the peak FP32 compute performance of the AMD Radeon HD 8770M?
A: The GPU delivers a peak FP32 throughput of 633.6 GFLOPS, derived from its 384 shading units operating at a boost clock of 825 MHz.
Q: How much VRAM does the HD 8770M have, and what is its bandwidth?
A: It features 2 GB of GDDR5 memory on a 128-bit bus, providing a bandwidth of 72.00 GB/s. The memory clock runs at 1125 MHz, translating to an effective 4.5 Gbps data rate.
Q: What is the transistor count and die size of the Mars chip used in this GPU?
A: The Mars chip integrates 950 million transistors on a die size of 77 mm², fabricated on a 28 nm process by TSMC. This results in a transistor density of 12.3M per mm².
Q: Does the HD 8770M support modern graphics APIs?
A: Yes, it supports DirectX 12 (11_1), OpenGL 4.6, and Vulkan 1.2.170, making it compatible with most modern software titles despite its age.
Q: What is the pixel and texture fill rate of this GPU?
A: The pixel rate is 6.600 GPixel/s, and the texture rate is 19.80 GTexel/s. These rates are consistent with its 8 ROPs and 24 TMUs.
Q: What is the production status and release date of the HD 8770M?
A: The GPU is marked as end-of-life, with a release date of March 31, 2013. It is positioned between the London predecessor and the Gem System successor in the product lineup.
The NVIDIA Equivalent of Radeon HD 8770M
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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