In the nest table you can pinpoint the exact position of this product compared to compared to other GeForce 4's I suggest you take a look at the following table:

  MX 420 MX 440 MX 460 Ti 4200 Ti 4400 Ti 4600
Number of Transistors (Millions) 29 29 29 63 63 63
Manufacturing Process (microns) .15 .15 .15 .15 .15 .15
Rendering Pipelines 2 2 2 4 4 4
Texture per Pass 4 4 4 8 8 8
Core Clock (MHz) 250 270 300 250 275 300
Memory Clock (MHz) 166 200 275 250 275 325
Memory Amount (MB) 64 64 64 128 128 128
Memory Type 5.5ns 4ns 3.6ns 4ns 3.6ns 3ns
RAMDAC 350 MHz 350 MHz 350 MHz 350 MHz 350 MHz 350 MHz
Fill Rate (gigatexels) 1.0 1.08 1.2 2.0 2.2 2.4
Fill Rate (megapixels) 500 540 600 900 1100 1200
Fill Rate (millions of Triangles/sec.) 31 34 38 114 125 136
Bandwidth (GB/s) 2.66 6.4 8.8 8.0 8.8 10.4

This particular model we are reviewing today should competition wise be between the 4200 and 4400 with it's default 250 MHz core clockspeed. The features of the GeForce4 (read keywords) you need to remember, for the GeForce4 Titanium / NV 25 are Accuview, nView, nfiniteFX II Vertex Shaders, nfiniteFX II Pixel Shaders and Lightspeed Memory Architecture II. Let us look at some innovations and specs of the GeForce4 Ti series with you that where provided by NVIDIA:

  • 63 million transistors (3 million more than GeForce3)
  • Manufactured in TSMC's .15 µ process
  • Chip clock 225 - 300 MHz
  • Memory clock 500 - 650 MHz
  • Memory bandwidth 8,000 - 10,400 MB/s
  • TnL Performance of 75 - 100 million vertices/s
  • 128 MB frame buffer by default
  • nfiniteFX II engine
  • Accuview Anti Aliasing
  • Light Speed Memory Architecture II
  • nView

One thing is a sure fact, 3.3ns memory can easily take that 550 MHz clock frequency. Let's do our usual round of calculations shall we and bare in mind that a normal Ti 4200 would have a bandwidth of roughly 8000 MB/sec, we are talking about the faster 64MB model here btw.

There's a simple way to calculate everything you need to know, you just need to look at the memory chips and note the last numbers on the chip as it will state how fast they are or simple write down the series number and check it on the manufacturer website.

Let's calculate the nominal speed for this memory:
1000:3.3ns x 2 (DDR) = 606 MHz

Hey .. it's clocked at 555 MHz, that means there is plenty of room for overclocking. Now that we have calculated nominal memory bandwidth and can see that the ram modules deliver the frequency that NVIDIA states we can raise the bar a step and calculate memory bandwidth:

(2x128bit) x (2:606MHz) : 8bit = 9696 MB/sec That's about a 1696 MB/sec above standard specification.

When we fired up SiSoft's Sandra we where able to figure out that the new A3 revision of the GeForce4 GPU was used on this videocard. A3 is the latest build of the GPU and is also being used on any GeForce4 Ti 4600. Combined with the Ti 4600 PCB I think we'll be able to tweak this puppy to about 300-310 MHz but more on that later in our overclocking bit.


DDR memory rated 3,3ns - click image for high-resolution photo

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