GeForce 8800 GTS 640 vs ATI Radeon HD 3850
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1154 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.04 | no data |
| Power efficiency | 0.98 | no data |
| Architecture | TeraScale (2005−2013) | Tesla (2006−2010) |
| GPU code name | RV670 | G80 |
| Market segment | Desktop | Desktop |
| Release date | 19 November 2007 (17 years ago) | 8 November 2006 (18 years ago) |
| Launch price (MSRP) | $179 | $449 |
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 | 320 | 96 |
| Core clock speed | 668 MHz | 513 MHz |
| Number of transistors | 666 million | 681 million |
| Manufacturing process technology | 55 nm | 90 nm |
| Power consumption (TDP) | 75 Watt | 143 Watt |
| Texture fill rate | 10.69 | 24.62 |
| Floating-point processing power | 0.4275 TFLOPS | 0.2281 TFLOPS |
| ROPs | 16 | 20 |
| TMUs | 16 | 24 |
| L2 Cache | 256 KB | 80 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 2.0 x16 | PCIe 1.0 x16 |
| Length | 208 mm | 267 mm |
| Width | 1-slot | 2-slot |
| Supplementary power connectors | 1x 6-pin | 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 | GDDR3 | GDDR3 |
| Maximum RAM amount | 1 GB | 640 MB |
| Memory bus width | 256 Bit | 320 Bit |
| Memory clock speed | 830 MHz | 792 MHz |
| Memory bandwidth | 53.12 GB/s | 63.36 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 | 2x DVI, 1x S-Video | 2x DVI, 1x S-Video |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 10.1 (10_1) | 11.1 (10_0) |
| Shader Model | 4.1 | 4.0 |
| OpenGL | 3.3 | 3.3 |
| OpenCL | N/A | 1.1 |
| Vulkan | N/A | N/A |
| CUDA | - | + |
Pros & cons summary
| Recency | 19 November 2007 | 8 November 2006 |
| Maximum RAM amount | 1 GB | 640 MB |
| Chip lithography | 55 nm | 90 nm |
| Power consumption (TDP) | 75 Watt | 143 Watt |
ATI HD 3850 has an age advantage of 1 year, a 60% higher maximum VRAM amount, a 63.6% more advanced lithography process, and 90.7% lower power consumption.
We couldn't decide between Radeon HD 3850 and GeForce 8800 GTS 640. We've got no test results to judge.
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