RADEON

AMD Radeon HD 6670A

AMD graphics card specifications and benchmark scores

1 GB
VRAM
MHz Boost
45W
TDP
128
Bus Width

AMD Radeon HD 6670A Specifications

⚙️

Radeon HD 6670A GPU Core

Shader units and compute resources

The AMD Radeon HD 6670A 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.

Shading Units
480
Shaders
480
TMUs
24
ROPs
8
Compute Units
6
⏱️

HD 6670A Clock Speeds

GPU and memory frequencies

Clock speeds directly impact the Radeon HD 6670A'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 6670A by AMD dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.

GPU Clock
600 MHz
Memory Clock
1000 MHz 4 Gbps effective
GDDR GDDR 6X 6X

AMD's Radeon HD 6670A Memory

VRAM capacity and bandwidth

VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The Radeon HD 6670A'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.

Memory Size
1024 MB
VRAM
1,024 MB
Memory Type
GDDR5
VRAM Type
GDDR5
Memory Bus
128 bit
Bus Width
128-bit
Bandwidth
64.00 GB/s
💾

Radeon HD 6670A by AMD Cache

On-chip cache hierarchy

On-chip cache provides ultra-fast data access for the HD 6670A, 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.

L1 Cache
8 KB (per CU)
L2 Cache
256 KB
📈

HD 6670A Theoretical Performance

Compute and fill rates

Theoretical performance metrics provide a baseline for comparing the AMD Radeon HD 6670A 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.

FP32 (Float)
576.0 GFLOPS
Pixel Rate
4.800 GPixel/s
Texture Rate
14.40 GTexel/s
🏗️

TeraScale 2 Architecture & Process

Manufacturing and design details

The AMD Radeon HD 6670A 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 6670A will perform in GPU benchmarks compared to previous generations.

Architecture
TeraScale 2
GPU Name
Turks
Process Node
40 nm
Foundry
TSMC
Transistors
716 million
Die Size
118 mm²
Density
6.1M / mm²
🔌

AMD's Radeon HD 6670A Power & Thermal

TDP and power requirements

Power specifications for the AMD Radeon HD 6670A 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 6670A to maintain boost clocks without throttling.

TDP
45 W
TDP
45W
📐

Radeon HD 6670A by AMD Physical & Connectivity

Dimensions and outputs

Physical dimensions of the AMD Radeon HD 6670A 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.

Slot Width
MXM Module
Bus Interface
MXM-A (3.0)
Display Outputs
Portable Device Dependent
Display Outputs
Portable Device Dependent
🎮

AMD API Support

Graphics and compute APIs

API support determines which games and applications can fully utilize the AMD Radeon HD 6670A. 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.

DirectX
11.2 (11_0)
DirectX
11.2 (11_0)
OpenGL
4.4
OpenGL
4.4
OpenCL
1.2
Shader Model
5.0
📦

Radeon HD 6670A Product Information

Release and pricing details

The AMD Radeon HD 6670A 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 6670A by AMD represents good value at current market prices. Predecessor and successor information aids in tracking generational improvements and planning future upgrades.

Manufacturer
AMD
Release Date
Apr 2011
Production
End-of-life

Radeon HD 6670A Benchmark Scores

📊

No benchmark data available for this GPU.

About AMD Radeon HD 6670A

The GeForce AMD Radeon HD 6670A might sound like a relic from a forgotten era, but digging into its compute performance reveals why it never made waves in productivity circles. Built on the aging TeraScale 2 architecture and fabricated on a 40 nm process, this card lacks modern compute APIs and OpenCL optimization crucial for today’s workflows. With only 45W TDP and 1024 MB of GDDR5 VRAM, its raw compute power pales in comparison to even entry-level modern GPUs. The MXM-A (3.0) interface limits its use to specific laptops and embedded systems, further restricting real-world usability. While it technically supports DirectX 11 and some GPU acceleration, actual performance in compute-heavy tasks like rendering or simulation is sluggish at best. It's clear the Radeon HD 6670A wasn’t designed with productivity in mind more of a stopgap for basic display output. Even at launch, users reported minimal gains using this GPU in OpenCL-enabled apps. Ultimately, its compute capabilities feel more nostalgic than functional in 2024. When it comes to video editing, the AMD Radeon HD 6670A hits a hard wall lacking hardware encoding (no dedicated UVD/VCE support in many editing suites) and modern shader performance. Most contemporary editing tools like DaVinci Resolve or Adobe Premiere Pro either ignore this GPU or offload so little work to it that CPU becomes the sole driver. The 1GB VRAM limit means even 1080p timelines with basic effects can choke the memory bandwidth. Pair that with GDDR5’s underutilized potential on such an old architecture, and you’ve got a bottleneck waiting to happen. Some users tried forcing Mercury Playback Engine support, but results were inconsistent and often unstable. It's safe to say that this GPU, also known as the Radeon HD 6670A, wasn’t built for timelines or color grading. Even lightweight proxies struggle under sustained playback loads. If video work is in your wheelhouse, this card won’t earn its keep. Driver support for the GeForce AMD Radeon HD 6670A has been frozen for years, with AMD ending mainstream updates long ago only legacy drivers remain, devoid of security patches or performance tweaks. This poses real stability risks, especially on modern OS versions like Windows 10/11, where display glitches and crashes are commonly reported. Without Vulkan or updated OpenCL runtime support, the card can’t leverage modern rendering pipelines. Here’s what users should know:

  1. The last functional drivers were part of AMD’s Crimson suite, released years ago.
  2. No Linux kernel updates past 2018 offer reliable amdgpu support for this chip.
  3. Multi-GPU setups using CrossFire are technically possible but practically useless in productivity apps.
  4. Most professional software ignores this GPU entirely, rendering multi-GPU scaling irrelevant.
  5. Even if you link two Radeon HD 6670A cards, bandwidth via MXM-A bottlenecks any benefit.
In short, relying on this GPU for serious multitasking or parallel workloads is more of a tech archaeological experiment than a viable setup.

The NVIDIA Equivalent of Radeon HD 6670A

Looking for a similar graphics card from NVIDIA? The NVIDIA GeForce RTX 2080 offers comparable performance and features in the NVIDIA lineup.

NVIDIA GeForce RTX 2080

NVIDIA • 8 GB VRAM

View Specs Compare

Popular AMD Radeon HD 6670A Comparisons

See how the Radeon HD 6670A stacks up against similar graphics cards from the same generation and competing brands.

Compare Radeon HD 6670A with Other GPUs

Select another GPU to compare specifications and benchmarks side-by-side.

Browse GPUs