MSI GTX 275 Lightning

N275GTX-Lightning

Graphics Processor

GT200B

Cores

240

TMUs

ROPs

Memory Size

1792 MB

Memory Type

GDDR3

Bus Width

448 bit

GPU

I/O

Bottom

PCB Front

PCB Back

Graphics Processor

GPU Name: GT200B

GPU Variant: G200-105-B3

Architecture: Tesla 2.0

Foundry: TSMC

Process Size: 55 nm

Transistors: 1,400 million

Density: 3.0M / mm²

Die Size: 470 mm²

Chip Package: BGA-1981

Graphics Card

Release Date: ~~Jan 15th, 2009~~
Jul 24th, 2009

Generation: GeForce 200

Predecessor: GeForce 9

Successor: GeForce 400

Production: End-of-life

Bus Interface: PCIe 2.0 x16

TechPowerUp Review

Clock Speeds

GPU Clock: ~~633 MHz~~
700 MHz (+11%)

Shader Clock: 1404 MHz

Memory Clock: ~~1134 MHz~~
1150 MHz (+1%)
2.3 Gbps effective

Memory

Memory Size: ~~896 MB~~
1792 MB

Memory Type: GDDR3

Memory Bus: 448 bit

Bandwidth: ~~127.0 GB/s~~
128.8 GB/s

Render Config

Shading Units: 240

TMUs: 80

ROPs: 28

SM Count: 30

L2 Cache: 224 KB

Theoretical Performance

Pixel Rate: ~~17.72 GPixel/s~~
19.60 GPixel/s

Texture Rate: ~~50.64 GTexel/s~~
56.00 GTexel/s

FP32 (float): 673.9 GFLOPS

FP64 (double): 84.24 GFLOPS (1:8)

Board Design

Slot Width: Dual-slot

Length: ~~267 mm~~
270 mm
~~10.5 inches~~
10.6 inches

TDP: 219 W

Suggested PSU: 550 W

Outputs: ~~2x DVI~~
1x DVI
1x HDMI
1x VGA

Power Connectors: 2x 6-pin

Board Number: P897 SKU 54

Graphics Features

DirectX: 11.1 (10_0)

OpenGL: 3.3

OpenCL: 1.1

Vulkan: N/A

CUDA: 1.3

Shader Model: 4.0

GT200B GPU Notes

PureVideo HD: VP2
VDPAU: Feature Set A

GT200B, commonly printed on the chip package as G200-xxx-Bx is an optical shrink of the G200 core to the newer 55 manufacturing process of TSMC. It helped shrink the core's energy and thermal footprints to a level that even facilitated building a dual-GPU accelerator

Other retail boards based on this design (5)

Name	GPU Clock	Memory Clock	Other Changes
Gainward GTX 275 GS	648 MHz	1185 MHz	270 mm/10.6 inches, 1x DVI 1x HDMI 1x VGA
GIGABYTE GTX 275 SOC	715 MHz	1260 MHz	1792 MB, 1x DVI 1x mini-HDMI 1x VGA
MSI GTX 275 Lightning	700 MHz	1150 MHz	1792 MB, 270 mm/10.6 inches, 1x DVI 1x HDMI 1x VGA
MSI GTX 275 Twin Frozr OC	666 MHz	1161 MHz	2x DVI 1x S-Video
ZOTAC GTX 275 AMP! Edition	702 MHz	1260 MHz	2x DVI 1x S-Video