NVIDIA Details GeForce 9600 GT
January 3, 2008 11:51 AM
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NVIDIA's D9M makes its first appearance on corporate roadmaps
NVIDIA's newest mid-range processor,
, will make its official debut as the GeForce 9600 GT.
Corporate guidance from NVIDIA lists the initial GeForce 9600 GT shipments come stock with a 650 MHz core clock and a 1625 MHz unified shader clock. Unlike the G84 core found on GeForce 8600 GT, D9M will feature a 256-bit memory bus interface. Coupled with a 900 MHz memory clock, NVIDIA calculates the memory bandwidth at 57.6 GB/s.
The texture fill rate is estimated at 20.8 billion pixels per second. The company would not indicate how many shaders or stream processors reside on the D9M core.
Late last year, NVIDIA confirmed the D9 family will use TSMC's 65nm process node. The company introduced its first 65nm processor shrink in November 2007:
Other details of the D9M family have already surfaced.
published slides yesterday
claiming the GeForce 9600 requires a 400W power supply that requires 26A on the 12V rail. Unlike previous mid-range GeForce cards, the D9M will require a 6-pin supplementary power connector.
NVIDIA publicly confirmed other details of D9M: DirectX 10.1 support, Shader Model 4.0, OpenGL 2.1 and PCIe 2.0 support just to name a few.
Further documentation from NVIDIA claims the 9600 GT will also support the Quantum Effects physics processing engine.
Like all NVIDIA processors, the GeForce 9600 is also HDCP compatible, though final support still depends on vendor implementation.
NVIDIA declined to comment on expected price of GeForce 9600. A representative for NVIDIA would comment that the performance increase between GeForce 9600 and GeForce 8600 is "almost double."
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Can this bs with the memory width stop?
1/3/2008 4:29:01 PM
Just because something doesnt have 256bit memory bus, doesnt mean that it is bottlenecked by it's memory width.
What is important is the memory BANDWIDTH and how much the gpu core can utilise. A graphic card with 128bit memory that runs at 2ghz, has the same memory bandwidth that a 256bit 1ghz memory graphic card has. Nowadays memory has become A LOT faster than it used to be.
And even though gpu cores have become faster, it is possible to keep them "fed" without increasing the memory width but by just utilizing faster memory. Which is why both nvidia and ati reduced their memory bus width with their refreshes(3850/3870/8800gt) to 256bit.
People keep mentioning how the 9700pro showed that 256bit memory bus width is essential and makes huge difference in performance. THIS IS BS. 9700pro's memory was running at a mere 620mhz, that means that it has 19.8gB/s memory bandwidth.
8600gts, which has a memory bus width of just 128bit but also has it's memory running at 2ghz, has a memory bandwidth of 32gB/s. That is 50% more memory bandwidth than 9700pro had. 8600gts doesnt suck because of its 128bit memory bus width. It has as much memory bandwidth as 7800gs had(a last gen high end card with 256bit memory bus).
8600gts sucks because it has a weak ass core. Demanding 256bit memory buses for mid end is idiotic. You might as well demand 2ghz memory or 512mB for all cards(256mB 64bit fx5200 anyone?) or some other arbitrary characteristic.
What you need to demand is cards without serious bottlenecks. Whether the gpu core is kept fed by using a wider memory bus or a faster memory, shouldnt concern you. It is an architectural decision that should only affected by how "fast" the core is and not by some marketing, "tick here box" bs.
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