GeForce 8800 GTS 640 vs Radeon Xpress X1250
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | no data | Tesla (2006−2010) |
| GPU code name | RS690M | G80 |
| Market segment | Laptop | Desktop |
| Release date | 1 February 2007 (17 years ago) | 8 November 2006 (17 years ago) |
| Launch price (MSRP) | no data | $449 |
| Current price | no data | $254 (0.6x MSRP) |
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 | 4 | 96 |
| Core clock speed | no data | 513 MHz |
| Boost clock speed | 350 MHz | no data |
| Number of transistors | no data | 681 million |
| Manufacturing process technology | 80 nm | 90 nm |
| Power consumption (TDP) | no data | 143 Watt |
| Texture fill rate | no data | 24.62 |
| Floating-point performance | no data | 228.1 gflops |
Form factor & compatibility
Information on Radeon Xpress X1250 and GeForce 8800 GTS 640 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.
| Interface | no data | PCIe 1.0 x16 |
| Length | no data | 267 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 | no data | GDDR3 |
| Maximum RAM amount | 128 MB | 640 MB |
| Memory bus width | no data | 320 Bit |
| Memory clock speed | no data | 1584 MHz |
| Memory bandwidth | no data | 63.36 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 | no data | 2x DVI, 1x S-Video |
API compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | no data | 11.1 (10_0) |
| Shader Model | no data | 4.0 |
| OpenGL | no data | 3.3 |
| OpenCL | no data | 1.1 |
| Vulkan | no data | N/A |
| CUDA | no data | + |
Pros & cons summary
| Recency | 1 February 2007 | 8 November 2006 |
| Maximum RAM amount | 128 MB | 640 MB |
| Chip lithography | 80 nm | 90 nm |
We couldn't decide between Radeon Xpress X1250 and GeForce 8800 GTS 640. We've got no test results to judge.
Be aware that Radeon Xpress X1250 is a notebook card while GeForce 8800 GTS 640 is a desktop 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
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