- G92 core
- 128 Stream Processors
- DirectX 10.0
- Pixel Shader 4.0
- Vertex Shader 4.0
- PhysX
- CUDA
- GeForce 3D Vision
- NVIDIA unified architecture
- SLI
- PureVideo
- PCI Express 2.0
- OpenGL 2.1 support
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Brand Name |
XFX |
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Part Number |
GS-250X-YDFC
|
|
Graphics Chip |
G92
|
|
Core clock |
738
|
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Shader Clock |
1833
|
|
SPs |
128
|
|
Fabrication Process |
65nm
|
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Transistors |
754 million
|
|
Memory clock |
2200
|
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Memory Interface |
256-bit
|
|
Memory bandwidth |
70.4GB/second
|
|
Memory Size |
512MB
|
|
ROPs |
16
|
|
Texture Filtering Units |
64
|
|
Texture Filtering Rate |
47.2Gigatexels
|
|
HDCP Support |
Yes
|
|
HDMI Support |
Yes (via adapter)
|
|
Connectors |
Dual DisplayPort, DVI, TV-Out
|
|
RAMDACs |
400MHz
|
|
Bus |
PCI Express 2.0
|
|
Form Factor |
Dual Slot
|
|
Power Connectors |
6-pin
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The GeForce GTS 250 is based upon NVIDIA's G92 chip which formed the basis for many NVIDIA based cards over the last couple of years. NVIDIA uses TSMC's 55 nanometer process for the chip. Note that there is no functional difference between a 9800GTX and this card as the XFX version I'm reviewing here has 512MB of GDDR3 memory meaning that performance should fall in line as well. NVIDIA first introduced support for DirectX 10.0 with the launch of the GeForce 8800GTX in 2007. The GTS250 is based upon the same architecture with support for Pixel Shader 4.0 and Vertex Shader 4.0. There are 128 Stream Processors on the GTS 250 just like the GeForce 9800GTX+. The GTS 250 has a 256-bit memory bus with a memory clock speed of 1100MHz (2200MHz effective).
XFX has clocked the card at 738MHz for the core, 1100MHz for the memory and 1833MHz for the Shader clock. This matches NVIDIA's reference clocks for the GeForce GTS 250. The card has a fill rate of 11.8 Gigapixels a second and a texture fill rate of 47.2 Gigatexels a second. There are 16 ROPs and 64 texture units on the GeForce GTS 250. Ageia was a small company developing hardware and software solutions to handle hardware physics. They released the PhysX physics card and had wide industry support until being bought by NVIDIA in early 2008. NVIDIA brought support for PhysX games to their GeForce 8 and later cards with a driver in late 2008. Mirror's Edge uses PhysX effects throughout the game and it runs smoothly on NVIDIA cards with it enabled. SLI or Scalable Link Interface is NVIDIA's multi-GPU solution for improving game or application performance by adding one or two additional video cards. You need a motherboard that supports SLI like the X58 or nForce 790i SLI boards and two or more video cards with the same chip. Two GTS 250 cards in SLI mode will outperform a single GTX285 card in most situations. You also need a SLI bridge connector to bridge two or more cards.
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