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NVIDIA GeForce GT 230

G94B
Graphics Processor
48
Cores
24
TMUs
16
ROPs
512 MB
Memory Size
GDDR3
Memory Type
256 bit
Bus Width
NVIDIA GeForce GT 230 Photo NVIDIA G94B Photo
The GeForce GT 230 was a graphics card by NVIDIA, launched in October 2009. Built on the 55 nm process, and based on the G94B graphics processor, in its G94-300-B1 variant, the card supports DirectX 10.0. The G94B graphics processor is an average sized chip with a die area of 196 mm² and 505 million transistors. Unlike the fully unlocked GeForce GT 140 OEM, which uses the same GPU but has all 64 shaders enabled, NVIDIA has disabled some shading units on the GeForce GT 230 to reach the product's target shader count. It features 48 shading units, 24 texture mapping units and 16 ROPs. NVIDIA has placed 512 MB GDDR3 memory on the card, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 650 MHz, memory is running at 900 MHz.
Being a single-slot card, the NVIDIA GeForce GT 230 does not require any additional power connector, its power draw is rated at 75 W maximum. This device has no display connectivity, as it is not designed to have monitors connected to it. GeForce GT 230 is connected to the rest of the system using a PCI-Express 2.0 x16 interface.

Graphics Processor

GPU Name
G94B
GPU Variant
G94-300-B1
Architecture
Tesla
Foundry
TSMC
Process Size
55 nm
Transistors
505 million
Die Size
196 mm²

Graphics Card

Release Date
Oct 12th, 2009
Generation
GeForce 200
Production
End-of-life
Bus Interface
PCIe 2.0 x16

Relative Performance

30%
38%
47%
60%
71%
75%
92%
100%
GeForce GT 230
121%
122%
133%
140%
143%
164%
174%
187%
193%
201%
207%
221%
234%
239%
246%
254%
291%
293%
298%
302%
302%
306%
308%
326%
343%
349%
362%
364%
368%
371%
372%
373%
380%
399%
406%
436%
444%
444%
463%
464%
481%
513%
529%
532%
541%
544%
563%
570%
574%
584%
611%
623%
633%
633%
635%
637%
688%
694%
711%
719%
723%
729%
730%
743%
745%
765%
824%
845%
867%
872%
881%
890%
911%
935%
956%
979%
993%
994%
1101%
1211%
1228%
1310%
1317%
1335%
1352%
1364%
1371%
1390%
1396%
1403%
1415%
1491%
1522%
1541%
1541%
1695%
1725%
1754%
1885%
2070%
2144%
2309%
2309%
2436%
2718%
2850%
2923%
3186%
3625%
Based on TPU review data: "Performance Summary" at 1920x1080
Performance estimated based on architecture, shader count and clocks.

Clock Speeds

GPU Clock
650 MHz
Shader Clock
1625 MHz
Memory Clock
900 MHz
1800 MHz effective

Memory

Memory Size
512 MB
Memory Type
GDDR3
Memory Bus
256 bit
Bandwidth
57.60 GB/s

Render Config

Shading Units
48
TMUs
24
ROPs
16
SM Count
3

Theoretical Performance

Pixel Rate
10.40 GPixel/s
Texture Rate
15.60 GTexel/s
FP32 (float) performance
156.0 GFLOPS

Board Design

Slot Width
Single-slot
TDP
75 W
Outputs
No outputs
Power Connectors
None
Board Number
P545

Graphics Features

DirectX
10.0
OpenGL
3.3
OpenCL
1.1
Vulkan
N/A
CUDA
1.1
Shader Model
4.0

Card Notes

Memory Variant: 1 GB

G94B GPU Notes

PureVideo HD: VP2
VDPAU: Feature Set A