AMD Radeon HD 6770M
AMD graphics card specifications and benchmark scores
At a Glance
AMDAMD Radeon HD 6770M Specifications
Radeon HD 6770M GPU Core
Shader units and compute resources
The AMD Radeon HD 6770M 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 6770M Clock Speeds
GPU and memory frequencies
Clock speeds directly impact the Radeon HD 6770M'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 6770M by AMD dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.
AMD's Radeon HD 6770M Memory
VRAM capacity and bandwidth
VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The Radeon HD 6770M'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 6770M by AMD Cache
On-chip cache hierarchy
On-chip cache provides ultra-fast data access for the HD 6770M, 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 6770M Theoretical Performance
Compute and fill rates
Theoretical performance metrics provide a baseline for comparing the AMD Radeon HD 6770M 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 2 Architecture & Process
Manufacturing and design details
The AMD Radeon HD 6770M is built on AMD's TeraScale 2 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 6770M will perform in GPU benchmarks compared to previous generations.
AMD's Radeon HD 6770M Power & Thermal
TDP and power requirements
Power specifications for the AMD Radeon HD 6770M 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 6770M to maintain boost clocks without throttling.
Radeon HD 6770M by AMD Physical & Connectivity
Dimensions and outputs
Physical dimensions of the AMD Radeon HD 6770M 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 6770M. 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 6770M Product Information
Release and pricing details
The AMD Radeon HD 6770M 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 6770M by AMD represents good value at current market prices. Predecessor and successor information aids in tracking generational improvements and planning future upgrades.
Radeon HD 6770M Benchmark Scores
geekbench_openclSource
Geekbench OpenCL tests GPU compute performance using the cross-platform OpenCL API. This shows how AMD Radeon HD 6770M handles parallel computing tasks like video encoding and scientific simulations. OpenCL is widely supported across different GPU vendors and platforms. Higher scores benefit applications that leverage GPU acceleration for non-graphics workloads.
Top 5 Performers
Top 5 PerformersNearby Performers
Nearby PerformersAbout AMD Radeon HD 6770M
The AMD Radeon HD 6770M is a mobile graphics processor built around the Whistler chip and TeraScale 2 architecture, manufactured on a 40 nm process at TSMC. It contains 716 million transistors on a 118 mm² die, yielding a transistor density of 6.1 million per square millimeter. The GPU belongs to the Vancouver generation (HD 6700M series) and was released on January 3, 2011; it is now end-of-life. Its sole benchmark result is a Geekbench OpenCL score of 569, which places it at the 2nd percentile among all GPUs in the database.
Benchmark Performance
The Geekbench OpenCL score of 569 is the only performance metric available for the HD 6770M. This score places the GPU at the 2nd percentile of all tested GPUs, meaning it outperforms only 2% of the database population. Such a low percentile indicates that the HD 6770M is positioned at the very low end of the performance spectrum, even when compared to its immediate contemporaries.
Against its nearest rivals, the HD 6770M shows a mixed but generally positive standing. It is 6.2% faster than the AMD Radeon HD 6870, which scores 536. This is a notable result, as the HD 6870 is a desktop part with a higher TDP, yet the mobile HD 6770M manages a higher OpenCL score. Similarly, the HD 6770M leads the AMD Radeon HD 6750M by 17.6% (score 484) and the AMD Radeon HD 6850 by 24.1% (score 459). These deltas indicate that the HD 6770M outperforms three of its four closest rivals in the database.
However, the HD 6770M falls behind the AMD Radeon HD 6450 by 10.4%, with the HD 6450 scoring 635. This is an interesting anomaly: the HD 6450 is a low-end desktop GPU, yet it posts a higher OpenCL score than the HD 6770M. The result suggests that the HD 6770M's performance is not uniformly superior even within its own generation. Overall, the benchmark data places the HD 6770M in a narrow band of performance, but the absolute score is low enough that it will struggle with demanding workloads.
Ray Tracing and Feature Set
The HD 6770M does not include dedicated ray tracing cores or tensor cores; these are absent from the TeraScale 2 architecture. The GPU supports DirectX 11.2 (11_0) and OpenGL 4.4, but Vulkan is not available. This means the feature set is limited to conventional rasterization and compute through those APIs. The GPU's pixel rate is 5.800 GPixel/s, and its texture rate is 17.40 GTexel/s, driven by 24 texture mapping units and 8 ROPs. Compute performance is rated at 696.0 GFLOPS FP32, delivered by 480 shading units.
These specifications reflect a design focused on the graphics workloads of its era, with no hardware acceleration for modern ray tracing or AI-based features. The lack of Vulkan support further restricts its compatibility with contemporary engines that rely on that API. The DirectX 11.2 support is sufficient for many older titles, but the absence of newer APIs and specialized cores means the HD 6770M cannot take advantage of advanced rendering techniques.
Memory Subsystem
The HD 6770M is equipped with 1024 MB of GDDR5 memory on a 128-bit interface, yielding a memory bandwidth of 57.60 GB/s. The memory clock runs at 900 MHz, with an effective data rate of 3.6 Gbps. This configuration is modest, particularly for high-resolution workloads. The 1 GB capacity is small by any standard, and the 128-bit bus limits the amount of data that can be transferred per clock cycle.
At higher resolutions, the combination of limited VRAM and bandwidth will likely become a bottleneck. Frame buffers and texture data for detailed scenes can easily exceed 1 GB, forcing the GPU to rely on slower system memory or reduce texture quality. The 57.60 GB/s bandwidth is also restrictive for large data transfers, which can impact performance in memory-intensive applications. For lower resolutions and moderate detail settings, the memory subsystem may be adequate, but it is not designed to handle large, high-resolution assets.
FAQ
Q: What is the architectural basis of the AMD Radeon HD 6770M?
A: It uses the Whistler chip with TeraScale 2 architecture, built on a 40 nm process at TSMC. It contains 716 million transistors on a 118 mm² die.
Q: Does the HD 6770M support Vulkan?
A: No. The API support includes DirectX 11.2 (11_0) and OpenGL 4.4, but Vulkan is not listed.
Q: How much memory bandwidth does the HD 6770M provide?
A: It has 1024 MB of GDDR5 memory on a 128-bit bus, delivering 57.60 GB/s. The memory clock is 900 MHz with an effective rate of 3.6 Gbps.
Q: How does the HD 6770M compare to the Radeon HD 6870?
A: The HD 6770M scores 569 in Geekbench OpenCL, which is 6.2% higher than the HD 6870's score of 536.
Q: What is the production status of the HD 6770M?
A: It is end-of-life, with a release date of January 3, 2011.
Who Should Consider It
The HD 6770M is a low-power mobile GPU with a 35 W TDP, designed for MXM modules in portable devices. Its Geekbench OpenCL score of 569 places it at the 2nd percentile among all GPUs, indicating that it is among the weakest performers in the database. This percentile ranking makes it clear that the GPU is not intended for high-performance computing or demanding gaming.
Against its nearest rivals, the HD 6770M holds a mixed position: it is 6.2% faster than the HD 6870, 17.6% faster than the HD 6750M, and 24.1% faster than the HD 6850, but it is 10.4% slower than the HD 6450. These deltas suggest that within its immediate peer group, the HD 6770M can outperform several desktop and mobile parts, but the absolute performance level remains low. The 1 GB VRAM and 57.60 GB/s bandwidth further limit its ability to handle high-resolution textures or large frame buffers.
Given its low percentile and modest memory subsystem, the HD 6770M is only suitable for users with very light graphics requirements. It can handle basic 3D workloads, such as casual gaming at lower resolutions and reduced detail settings, or general productivity tasks that do not rely heavily on GPU acceleration. The GPU's end-of-life status and lack of modern API support (no Vulkan) make it a poor choice for current software that expects newer features. In short, the HD 6770M is a legacy part that should only be considered for legacy applications or for users who prioritize power efficiency over performance.
The NVIDIA Equivalent of Radeon HD 6770M
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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