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Introduction
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When NVIDIA launched their GT200 GPU and the first two graphics cards based on it - the GeForce GTX 280 and the GeForce GTX 260, they thought they had ATI licked for good. In fact, they originally pegged the GeForce 9800 GTX+ as the direct competitor to ATI's forthcoming (at that time) Radeon HD 4870 graphics card.
Unfortunately, NVIDIA grossly underestimated the ATI Radeon HD 4870, which not only roundly trounced both the GeForce 9800 GTX+ and the GeForce GTX 260, but was also more than a match for the GeForce GTX 280. As the GeForce GTX 260 was slower than the ATI Radeon HD 4850, NVIDIA came up with an "improved" GeForce GTX 260.
The new GeForce GTX 260 comes with 216 stream processors, 24 more than the original GeForce GTX 260. This gave it a small 12.5% boost in texture fillrate while everything else remained the same. This small improvement, however, gave the GeForce GTX 260 new life and allowed it to better compete with the Radeon HD 4850.
Of course, there were many who felt that the increase in stream processors wasn't good enough. Not only overclockers but even graphics card manufacturers saw the potential in overclocking the improved GeForce GTX 260. The larger number of stream processors would only mean much greater improvements in performance with every hike in core speed.
Galaxy is one of those manufacturers who saw the potential in offering factory-overclocked versions of the GeForce GTX 260. Their Galaxy GeForce GTX 260+ OverClocked graphics card offers factory-certified clock speeds of 625 MHz core, 1350 MHz shader and 1050 MHz memory. Let's take a look at the card and see how it fares...
Before we start with the actual review, let's take a look at how the Galaxy GeForce GTX 260+ OC compares against a few graphics cards, including the two standard GeForce GTX 260 models.
|
GeForce |
Galaxy GeForce |
GeForce |
GeForce |
Radeon |
Architecture |
GT200 |
GT200 |
GT200 |
GT200 |
RV770 XT |
Manufacturing |
65 nm |
65 nm |
65 nm |
65 nm |
55 nm |
Transistor |
1400 Million |
1400 Million |
1400 Million |
1400 Million |
956 Million |
DirectX |
10 |
10 |
10 |
10 |
10.1 |
Interface |
PCIe 2.0 |
PCIe 2.0 |
PCIe 2.0 |
PCIe 2.0 |
PCIe 2.0 |
Stream Processors |
240 |
216 |
216 |
192 |
800 |
Textures Per Clock Cycle |
80 |
72 |
72 |
64 |
48 |
ROPs |
32 |
28 |
28 |
28 |
16 |
Vertex
Shader |
4.0 |
4.0 |
4.0 |
4.0 |
4.1 |
Pixel Shader |
4.0 |
4.0 |
4.0 |
4.0 |
4.1 |
Core Speed |
602 MHz |
625 MHz |
576 MHz |
576 MHz |
750 MHz |
Texture Fill Rate |
48,160 MTexels/s |
45,000 MTexels/s |
41,472 MTexels/s |
36,864 MTexels/s |
36,000 MTexels/s |
Pixel Fill Rate |
19,264 MPixels/s |
17,500 MPixels/s |
16,128 MPixels/s |
16,128 MPixels/s |
12,000 MPixels/s |
Memory
Bus |
512-bits |
448-bits |
448-bits |
448-bits |
256-bits |
Memory |
GDDR3 |
GDDR3 |
GDDR3 |
GDDR3 |
GDDR5 |
Memory Speed |
1107 MHz |
1050 MHz |
999 MHz |
999 MHz |
900 MHz |
Memory |
141.67 GB/s |
117.60 GB/s |
111.89 GB/s |
111.89 GB/s |
115.20 GB/s |
For more details on the actual architecture of the GT200 GPU, do take a look at our NVIDIA GeForce GTX 280 & GTX 260 Tech Report.
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