FireStream 9250 vs GeForce 8800 GTS 640

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Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the rankingnot rated766
Place by popularitynot in top-100not in top-100
Power efficiencyno data1.39
ArchitectureTesla (2006−2010)TeraScale (2005−2013)
GPU code nameG80RV770
Market segmentDesktopWorkstation
Release date8 November 2006 (18 years ago)16 June 2008 (16 years ago)
Launch price (MSRP)$449 no data

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 cores96800
Core clock speed513 MHz625 MHz
Number of transistors681 million956 million
Manufacturing process technology90 nm55 nm
Power consumption (TDP)143 Watt150 Watt
Texture fill rate24.6225.00
Floating-point processing power0.2281 TFLOPS1 TFLOPS
ROPs2016
TMUs2440

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).

InterfacePCIe 1.0 x16PCIe 2.0 x16
Length267 mmno data
Width2-slot1-slot
Supplementary power connectors1x 6-pin1x 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 typeGDDR3GDDR3
Maximum RAM amount640 MB1 GB
Memory bus width320 Bit256 Bit
Memory clock speed792 MHz993 MHz
Memory bandwidth63.36 GB/s63.55 GB/s

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 Connectors2x DVI, 1x S-Video1x DVI

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX11.1 (10_0)10.1 (10_1)
Shader Model4.04.1
OpenGL3.33.3
OpenCL1.11.1
VulkanN/AN/A
CUDA+-

Pros & cons summary


Recency 8 November 2006 16 June 2008
Maximum RAM amount 640 MB 1 GB
Chip lithography 90 nm 55 nm
Power consumption (TDP) 143 Watt 150 Watt

8800 GTS 640 has 4.9% lower power consumption.

FireStream 9250, on the other hand, has an age advantage of 1 year, a 60% higher maximum VRAM amount, and a 63.6% more advanced lithography process.

We couldn't decide between GeForce 8800 GTS 640 and FireStream 9250. We've got no test results to judge.

Be aware that GeForce 8800 GTS 640 is a desktop card while FireStream 9250 is a workstation one.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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NVIDIA GeForce 8800 GTS 640
GeForce 8800 GTS 640
AMD FireStream 9250
FireStream 9250

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Community ratings

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