Mobility Radeon HD 4870 X2 vs HD 6770
Aggregated performance score
HD 6770 outperforms Mobility HD 4870 X2 by 2% based on our aggregated benchmark results.
Primary Details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | 703 | 710 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-Effectiveness Evaluation | 0.23 | 0.43 |
| Architecture | TeraScale 2 (2009−2015) | Terascale 1 (2008−2010) |
| GPU code name | Juniper | M98-XT |
| Market segment | Desktop | Laptop |
| Design | reference | no data |
| Release date | 21 January 2011 (13 years ago) | 9 January 2009 (15 years ago) |
| Launch price (MSRP) | $129 | no data |
| Current price | $150 (1.2x MSRP) | $305 |
Cost-Effectiveness Evaluation
Performance to price ratio. The higher, the better.
ATI Mobility HD 4870 X2 has 87% better value for money than HD 6770.
Detailed Specifications
General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 800 | 1600 |
| Core clock speed | no data | 550 MHz |
| Boost clock speed | 900 MHz | no data |
| Number of transistors | 1,040 million | 956 million |
| Manufacturing process technology | 40 nm | 55 nm |
| Power consumption (TDP) | 108 Watt | no data |
| Texture fill rate | 34.00 | 22.00 |
| Floating-point performance | 1,360.0 gflops | 2x 880.0 gflops |
Form Factor & Compatibility
Information on Radeon HD 6770 and Mobility Radeon HD 4870 X2 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.
| Laptop size | no data | large |
| Bus support | PCIe 2.0 x16 | no data |
| Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Length | 198 mm | no data |
| Width | 2-slot | no data |
| Supplementary power connectors | 1x 6-pin | no data |
| Memory type | GDDR5 | GDDR3, GDDR5 |
| Maximum RAM amount | 1 GB | 2 GB |
| Memory bus width | 128 Bit | 256 Bit |
| Memory clock speed | 1050 MHz | 888 MHz |
| Memory bandwidth | 76.8 GB/s | 89.6 GB/s |
| Shared memory | no data | - |
Connectivity and Outputs
Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.
| Display Connectors | 2x DVI, 1x HDMI, 2x mini-DisplayPort | No outputs |
| Eyefinity | 1 | no data |
| HDMI | + | no data |
| DisplayPort support | - | no data |
Supported Technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| AppAcceleration | - | no data |
| CrossFire | 1 | no data |
| Enduro | - | no data |
| HD3D | - | no data |
| PowerTune | - | no data |
| TrueAudio | - | no data |
| ZeroCore | - | no data |
API Compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | DirectX® 11 | 10.1 (10_1) |
| Shader Model | 5.0 | 4.1 |
| OpenGL | 4.4 | 3.3 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | no data | N/A |
| Mantle | - | no data |
Gaming performance
Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.
Average FPS across all PC games
Here are the average frames per second in a large set of popular games across different resolutions:
| Full HD | 40−45
−10%
| 44
+10%
|
Pros & Cons Summary
| Performance score | 3.22 | 3.15 |
| Recency | 21 January 2011 | 9 January 2009 |
| Maximum RAM amount | 1 GB | 2 GB |
| Chip lithography | 40 nm | 55 nm |
Given the minimal performance differences, no clear winner can be declared between Radeon HD 6770 and Mobility Radeon HD 4870 X2.
Be aware that Radeon HD 6770 is a desktop card while Mobility Radeon HD 4870 X2 is a notebook one.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with Similar GPUs
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
