ATI Radeon HD 3870 vs GeForce GT 640M Mac Edition
Aggregate performance score
We've compared GeForce GT 640M Mac Edition with Radeon HD 3870, including specs and performance data.
HD 3870 outperforms 640M Mac Edition by a substantial 38% 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 | 1163 | 1058 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 0.05 |
| Power efficiency | 2.30 | 0.96 |
| Architecture | Kepler (2012−2018) | TeraScale (2005−2013) |
| GPU code name | GK107 | RV670 |
| Market segment | Laptop | Desktop |
| Release date | 3 February 2013 (12 years ago) | 19 November 2007 (18 years ago) |
| Launch price (MSRP) | no data | $269 |
Cost-effectiveness evaluation
The higher the ratio, the better. We use the manufacturer's recommended prices.
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 | 384 | 320 |
| Core clock speed | 745 MHz | 777 MHz |
| Number of transistors | 1,270 million | 666 million |
| Manufacturing process technology | 28 nm | 55 nm |
| Power consumption (TDP) | 32 Watt | 106 Watt |
| Texture fill rate | 23.84 | 12.43 |
| Floating-point processing power | 0.5722 TFLOPS | 0.4973 TFLOPS |
| ROPs | 8 | 16 |
| TMUs | 32 | 16 |
| L1 Cache | 32 KB | no data |
| L2 Cache | 128 KB | 256 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).
| Interface | PCIe 3.0 x16 | PCIe 2.0 x16 |
| Length | no data | 241 mm |
| Width | no data | 2-slot |
| Supplementary power connectors | no data | 1x 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 | GDDR5 | GDDR4 |
| Maximum RAM amount | 512 MB | 512 MB |
| Memory bus width | 64 Bit | 256 Bit |
| Memory clock speed | 1250 MHz | 1126 MHz |
| Memory bandwidth | 40 GB/s | 72.06 GB/s |
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 | No outputs | 2x DVI, 1x S-Video |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 10.1 (10_1) |
| Shader Model | 5.1 | 4.1 |
| OpenGL | 4.6 | 3.3 (full) 4.0 (partial) |
| OpenCL | 1.2 | N/A |
| Vulkan | 1.1.126 | N/A |
| CUDA | 3.0 | - |
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 | 0.96 | 1.32 |
| Recency | 3 February 2013 | 19 November 2007 |
| Chip lithography | 28 nm | 55 nm |
| Power consumption (TDP) | 32 Watt | 106 Watt |
GT 640M Mac Edition has an age advantage of 5 years, a 96.4% more advanced lithography process, and 231.3% lower power consumption.
ATI HD 3870, on the other hand, has a 37.5% higher aggregate performance score.
The Radeon HD 3870 is our recommended choice as it beats the GeForce GT 640M Mac Edition in performance tests.
Be aware that GeForce GT 640M Mac Edition is a notebook graphics card while Radeon HD 3870 is a desktop one.
Other comparisons
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