- G92 chip
- 764 million transistors
- 112 Stream Processors
- 28 Pixel Pipelines
- 16 ROPs
- 56 texture units
- Theoretical Fillrate 33.6 Gigatexels/second
- DirectX 10
- Pixel Shader 4.0
- Vertex Shader 4.0
- Geometry Shaders
- Up to 16xQ Anti-Aliasing
- Up to 16x AF
- 256MB (Upgradeable to 512MB via NVFlash) of GDDR3 memory
Brand Name |
ECS |
ECS Part Number |
ECS GeForce 8800GT N8800GT-256MX |
Graphics Chip |
G92 |
Core clock |
600 |
Shader Clock |
1500 |
SPs |
112 |
Fabrication Process |
65nm |
Transistors |
768 million |
Memory clock |
700MHz/1.4GHz effective |
Memory Interface |
256-bit |
Memory bandwidth |
44.8GB/sec |
Memory Size |
256/512 when Flashed |
ROPs |
16 |
Texture Filtering Units |
28 |
Texture Filtering Rate |
44.8Gigatexels/second |
HDCP Support |
Yes |
HDMI Support |
No |
Connectors |
2x Dual-Link DVI, HDTV Out |
RAMDACs |
400MHz |
Bus |
PCI Express 2.0 |
Form Factor |
Single Slot |
Power Connectors |
6-pin |
The 8800GT is based upon NVIDIA’s G92 chip which forms the basis for virtually their entire high-end video card lineup today (8800GTS 512MB, 9800GTX, 9800GX2, 8800GT). The chip consists of 768 million transistors and is based upon TSMC’s 65 nanometer process. 8800GTs have 112 Stream Processors which compares to the 128 found on the 8800GTS 512MB cards and the 128 found on the 9800GTX/GX2 cards.
The 8800GT is the second generation DirectX 10 card from NVIDIA. NVIDIA video cards are limited to the Shader Model 4.0 features, with their main rival ATI and S3 moving on to DirectX 10.1. DX10.1 is mostly a modest update to the featureset and in any event there is not likely to be many games that will require it as older ATI cards like the 2xxx series support DX10 as well.
DirectX 10 introduced with Microsoft’s Vista Operating System offers support for Pixel Shader 4.0, Vertex Shader 4.0, Geometry Shaders and Unified Shaders which I’ve covered in-depth in many 8800GT/9800 reviews. DX10 offers higher precision filtering allowing 128-bit High Dynamic Range rendering and better visuals than DX9 allows. Games like Crysis, World In Conflict, Conan and others have a DX10 path that looks worlds apart from the DX9 version.
The ECS card has 256MB of DDR3 memory enabled by default. ECS actually put 512MB on the card, with a simple BIOS update required to enable all 512MB of memory. Memory bus bandwidth on the card is 256MB, meaning that the card has a memory bandwidth of 44.8GB/second with the 1.4GHz memory clock. The Shader clock is set to 1.5GHz, meaning that this card is identical in every way to an NVIDIA reference 8800GT 256MB card in speeds.
