Radeon HD 6950 vs ATI HD 3870 X2
Aggregate performance score
We've compared Radeon HD 3870 X2 and Radeon HD 6950, covering specs and all relevant benchmarks.
HD 6950 outperforms ATI HD 3870 X2 by a whopping 341% based on our aggregate benchmark results.
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1021 | 611 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.03 | 0.91 |
| Power efficiency | 0.65 | 2.36 |
| Architecture | TeraScale (2005−2013) | TeraScale 3 (2010−2013) |
| GPU code name | R680 | Cayman |
| Market segment | Desktop | Desktop |
| Design | no data | reference |
| Release date | 26 January 2008 (17 years ago) | 14 December 2010 (14 years ago) |
| Launch price (MSRP) | $449 | $299 |
Cost-effectiveness evaluation
The higher the ratio, the better. We use the manufacturer's recommended prices.
HD 6950 has 2933% better value for money than ATI HD 3870 X2.
Performance to price scatter graph
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 320 ×2 | 1408 |
| Core clock speed | 825 MHz | no data |
| Boost clock speed | no data | 800 MHz |
| Number of transistors | 666 million | 2,640 million |
| Manufacturing process technology | 55 nm | 40 nm |
| Power consumption (TDP) | 165 Watt | 500 Watt |
| Texture fill rate | 13.20 ×2 | 70.40 |
| Floating-point processing power | 0.528 TFLOPS ×2 | 2.253 TFLOPS |
| ROPs | 16 ×2 | 32 |
| TMUs | 16 ×2 | 88 |
| L1 Cache | no data | 352 KB |
| L2 Cache | 256 KB | 512 KB |
Form factor & compatibility
Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
| Bus support | no data | PCIe 2.0 x16 |
| Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Length | 267 mm | 267 mm |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | 1x 6-pin + 1x 8-pin | 2x 6-pin |
VRAM capacity and type
Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.
| Memory type | GDDR3 | GDDR5 |
| Maximum RAM amount | 512 MB ×2 | 2 GB |
| Memory bus width | 256 Bit ×2 | 256 Bit |
| Memory clock speed | 901 MHz | 1250 MHz |
| Memory bandwidth | 57.66 GB/s ×2 | no data |
Connectivity and outputs
This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.
| Display Connectors | 2x DVI, 1x S-Video | 2x DVI, 1x HDMI, 2x mini-DisplayPort |
| Eyefinity | - | + |
| HDMI | - | + |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| CrossFire | - | + |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 10.1 (10_1) | DirectX® 11 |
| Shader Model | 4.1 | 5.0 |
| OpenGL | 3.3 | 4.4 |
| OpenCL | N/A | 1.2 |
| Vulkan | N/A | - |
Synthetic benchmarks
Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.
Combined synthetic benchmark score
This is our combined benchmark score.
Passmark
This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.
Gaming performance
Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.
Pros & cons summary
| Performance score | 1.33 | 5.86 |
| Recency | 26 January 2008 | 14 December 2010 |
| Maximum RAM amount | 512 MB | 2 GB |
| Chip lithography | 55 nm | 40 nm |
| Power consumption (TDP) | 165 Watt | 500 Watt |
ATI HD 3870 X2 has 203% lower power consumption.
HD 6950, on the other hand, has a 340.6% higher aggregate performance score, an age advantage of 2 years, a 300% higher maximum VRAM amount, and a 37.5% more advanced lithography process.
The Radeon HD 6950 is our recommended choice as it beats the Radeon HD 3870 X2 in performance tests.
Other comparisons
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