AMD Radeon HD 6770 Green Edition
AMD graphics card specifications and benchmark scores
At a Glance
AMDAMD Radeon HD 6770 Green Edition Specifications
Radeon HD 6770 Green Edition GPU Core
Shader units and compute resources
The AMD Radeon HD 6770 Green Edition 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 6770 Green Edition Clock Speeds
GPU and memory frequencies
Clock speeds directly impact the Radeon HD 6770 Green Edition'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 6770 Green Edition by AMD dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.
AMD's Radeon HD 6770 Green Edition Memory
VRAM capacity and bandwidth
VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The Radeon HD 6770 Green Edition'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 6770 Green Edition by AMD Cache
On-chip cache hierarchy
On-chip cache provides ultra-fast data access for the HD 6770 Green Edition, 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 6770 Green Edition Theoretical Performance
Compute and fill rates
Theoretical performance metrics provide a baseline for comparing the AMD Radeon HD 6770 Green Edition 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 6770 Green Edition 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 6770 Green Edition will perform in GPU benchmarks compared to previous generations.
AMD's Radeon HD 6770 Green Edition Power & Thermal
TDP and power requirements
Power specifications for the AMD Radeon HD 6770 Green Edition 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 6770 Green Edition to maintain boost clocks without throttling.
Radeon HD 6770 Green Edition by AMD Physical & Connectivity
Dimensions and outputs
Physical dimensions of the AMD Radeon HD 6770 Green Edition 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 6770 Green Edition. 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 6770 Green Edition Product Information
Release and pricing details
The AMD Radeon HD 6770 Green Edition 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 6770 Green Edition by AMD represents good value at current market prices. Predecessor and successor information aids in tracking generational improvements and planning future upgrades.
Radeon HD 6770 Green Edition Benchmark Scores
No benchmark data available for this GPU.
About AMD Radeon HD 6770 Green Edition
Benchmark Performance
The AMD Radeon HD 6770 Green Edition occupies a peculiar position in the hardware landscape. Its `percentileVsAllGpus` of 50 places it exactly at the median of all GPUs tracked in the database, which is a surprisingly strong standing for a card built on the TeraScale 2 architecture. This 40 nm part, fabricated by TSMC with 1,040 million transistors on a 166 mm² die, achieves a transistor density of 6.3M / mm²—a figure that reflects the maturity of the manufacturing process at the time of its release.
The raw compute specifications tell a story of balanced, if not spectacular, performance. The card's 720 shading units, 36 texture mapping units, and 16 ROPs combine to produce 1,008.0 GFLOPS of FP32 compute throughput. This is the headline number: slightly over one teraflop of single-precision performance. The pixel rate of 11.20 GPixel/s and texture rate of 25.20 GTexel/s indicate that the card can feed its 16 ROPs adequately, though the memory subsystem presents a bottleneck.
Memory is the most significant constraint. The 2 GB GDDR3 frame buffer runs at 667 MHz, yielding 1334 Mbps effective, across a 128-bit bus. This configuration produces 21.34 GB/s of memory bandwidth. That figure is modest by any modern standard, and it directly limits the card's ability to sustain high frame rates at higher resolutions with texture-heavy workloads. The benchmark data shows no specific scores from the database, but the percentile ranking at 50 implies that this card sits right in the middle of the performance distribution—neither a standout nor a laggard.
When examining the architecture, the Juniper chip used here is a slightly cut-down version of the full Northern Islands design. The generation is listed as "Northern Islands (HD 6700)," and the predecessor is Evergreen, with Southern Islands as the successor. The FP32 output of 1,008.0 GFLOPS is the key metric for compute-oriented tasks, and it aligns with what one would expect from a 720-shader, 40 nm part. The absence of FP16 data in the fact pack means no half-precision performance can be cited; the card likely handles such workloads via emulation or not at all, but that remains outside the documented scope.
Ray Tracing and Feature Set
The HD 6770 Green Edition predates dedicated ray tracing hardware entirely. The fact pack lists `rtCores` and `tensorCores` as null, confirming that no hardware acceleration for ray tracing or tensor operations exists on this chip. This is a fundamental architectural reality of TeraScale 2: it is a fixed-function design for rasterization and compute, with no pathway for the hardware-accelerated ray tracing found in later generations.
The API support is the more relevant feature set for this card. DirectX 11.2 (11_0) is supported, which covers the vast majority of games released up to the early-to-mid 2010s. OpenGL 4.4 is also present, providing compatibility with a wide range of applications and older titles. Notably, Vulkan support is listed as null, meaning this card cannot leverage the modern low-overhead graphics API. This is a significant limitation for any current or recent game that relies on Vulkan for optimal performance or as its primary rendering path.
The display output configuration is robust for the era: 2x DVI, 1x HDMI 1.3a, and 2x mini-DisplayPort 1.1. This allows for multi-monitor setups, though the HDMI 1.3a standard caps 4K output at lower refresh rates, and the mini-DisplayPort 1.1 connections support standard resolutions without high dynamic range. The bus interface is PCIe 2.0 x16, which is backward compatible with modern slots but offers half the bandwidth of PCIe 3.0; for a card with this memory bandwidth, the bus is unlikely to be the limiting factor. The feature set is complete for its generation but obsolete for contemporary workloads involving ray tracing or Vulkan-based rendering.
Power and Cooling
The thermal design power is 86 W, which is remarkably low for a dual-slot card. This efficiency is the defining characteristic of the "Green Edition" branding. The card's cooling solution is a dual-slot design, measuring 170 mm in length (6.7 inches), making it suitable for most mid-tower chassis. The absence of power connector information in the fact pack suggests that the card may draw power entirely from the PCIe slot, though this cannot be confirmed; the 86 W TDP is within the 75 W slot limit only if no auxiliary power is used, but the fact pack does not specify.
The recommended power supply is 250 W. This is a very modest requirement, allowing the card to be paired with older or lower-wattage PSUs in system upgrades. The 86 W TDP, combined with the 250 W PSU recommendation, positions this card as an excellent drop-in replacement for aging systems with limited power headroom. The dual-slot cooler is a standard design for this class of card, ensuring adequate heat dissipation for the 40 nm Juniper chip under sustained load. The 40 nm process node from TSMC is the key enabler of this low power draw; the transistor density of 6.3M / mm² is not particularly high, but the modest clock speeds and shader count keep thermal output manageable.
Given the end-of-life production status and the release date of 2013-04-18, this card is firmly in legacy territory. The power characteristics are its primary selling point: 86 W TDP and a 250 W PSU recommendation mean that it can run in systems where modern cards would require substantial upgrades to the power delivery infrastructure. The lack of documented power connectors further suggests a plug-and-play installation, though again, this is not explicitly stated.
FAQ
Q: What is the memory configuration of the AMD Radeon HD 6770 Green Edition?
A: The card features 2 GB of GDDR3 memory on a 128-bit bus, running at 667 MHz with 1334 Mbps effective speed, producing 21.34 GB/s of bandwidth.
Q: Does this GPU support hardware ray tracing?
A: No. The fact pack lists both rtCores and tensorCores as null, indicating no dedicated hardware for ray tracing or tensor operations. It relies entirely on the TeraScale 2 architecture's rasterization pipeline.
Q: What is the maximum API level supported?
A: The card supports DirectX 11.2 (11_0) and OpenGL 4.4. Vulkan support is not listed, meaning the card cannot use the Vulkan API.
Q: What power supply is recommended for this card?
A: The suggested PSU is 250 W. The card itself has a TDP of 86 W, which is low enough to fit into systems with modest power supplies.
Q: How many display outputs are available?
A: There are five outputs: 2x DVI, 1x HDMI 1.3a, and 2x mini-DisplayPort 1.1. This supports multi-monitor configurations.
Q: What is the physical size of the card?
A: It is a dual-slot card with a length of 170 mm (6.7 inches). The height and width are not specified in the available data.
Q: When was this card released?
A: The release date is 2013-04-18, and it is currently listed as end-of-life.
How It Compares
The fact pack lists no nearest rivals, and the benchmark scores are empty, so direct numerical comparisons against specific competing products cannot be made from the available data. However, the `percentileVsAllGpus` of 50 provides a general positioning statement: this card performs better than half of all GPUs in the database and worse than the other half. This median placement suggests that it is neither a high-end part nor an entry-level one—it sits in the middle of the performance curve.
Without rival names or delta percentages, the comparison must rely on architectural context. The card's predecessor is Evergreen, and its successor is Southern Islands. The Juniper chip at the heart of this card is a refined version of the previous generation's design, with the Northern Islands generation adding minor feature tweaks and efficiency improvements over the older 40 nm parts. The 1,008.0 GFLOPS FP32 throughput is a clear step above the 720-shader parts of the Evergreen generation, but it is far below the compute capabilities of the Southern Islands cards that followed, which introduced graphics core next (GCN) architecture with different compute characteristics.
The 21.34 GB/s memory bandwidth is a limiting factor in any comparison. Rivals with similar FP32 compute but wider memory buses or faster memory types would outperform this card in bandwidth-sensitive scenarios. Conversely, the 86 W TDP is a significant advantage over any competitor with similar performance but higher power consumption; the "Green Edition" moniker is earned through this efficiency. The lack of Vulkan support and ray tracing further positions this card as a legacy part, best suited for older DirectX 11 titles rather than modern workloads.
Who Should Consider It
The AMD Radeon HD 6770 Green Edition is a card for a very specific use case. The 50th percentile ranking and the 2 GB GDDR3 frame buffer suggest that it is capable of running games at 1080p with reduced settings, particularly titles from the DirectX 11 era that do not require Vulkan or ray tracing. The 1,008.0 GFLOPS of FP32 compute is sufficient for older e-sports titles and lighter indie games at medium-to-high settings, but the 21.34 GB/s memory bandwidth will cause stuttering in games with large texture sets or open-world environments that demand high bandwidth.
The 86 W TDP and 250 W PSU recommendation make this an ideal upgrade for pre-built systems with weak power supplies. Users with an older Dell, HP, or Lenovo tower that has a 250 W PSU and a PCIe 2.0 x16 slot can install this card without changing the power supply. The dual-slot cooler and 170 mm length fit into most standard cases, and the five display outputs allow for a multi-monitor productivity setup. For office work, web browsing, and video playback, this card is more than adequate.
However, the absence of Vulkan support is a dealbreaker for many modern games, as numerous recent titles use Vulkan as a primary or fallback renderer. The card's end-of-life status means no new driver optimizations will be forthcoming, and the 40 nm process node puts it at a thermal disadvantage compared to newer 28 nm or smaller parts, even if the TDP is low. For 1440p or 4K gaming, the 128-bit memory bus and 21.34 GB/s bandwidth are insufficient; the card will struggle to maintain playable frame rates. The 2 GB frame buffer is also a limitation at higher resolutions, where textures will exceed the available memory. This card is best suited for 1080p gaming on older titles, or as a functional display adapter for systems with stringent power constraints. It is not a card for modern AAA gaming, nor is it a card for compute-heavy workloads beyond basic FP32 tasks. For those specific roles, it remains a competent, if unremarkable, choice.
The NVIDIA Equivalent of Radeon HD 6770 Green Edition
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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