Add to Reddit
How Well Did We Do?
After loads of tests, we finally pegged the maximum stable clock speeds of our GeForce 9800 GTX+ at 694 MHz core and 1285 MHz RAM. This means we managed to overclock the GPU by 118 MHz (20.5 %). For those who are interested, overclocking the core to 694 MHz also overclocked the shader processors to 1496 MHz. We managed to overclock the GDDR3 memory by 286 MHz (28.6 %). Not bad at all!
Now, let's take a look at how the overclocked GeForce GTX 260 compares to the stock GeForce GTX 260 and a selection of other cards.
|
Overclocked |
GeForce |
Radeon HD |
GeForce |
GeForce |
GPU |
GT200 |
GT200 |
RV770 XT |
G92 |
G92 |
Manufacturing |
65 nm |
65 nm |
55 nm |
55 nm |
65 nm |
Transistor |
1400 Million |
1400 Million |
956 Million |
754 Million |
754 Million |
DirectX |
10 |
10 |
10.1 |
10 |
10 |
Interface |
PCIe 2.0 |
PCIe 2.0 |
PCIe 2.0 |
PCIe 2.0 |
PCIe 2.0 |
Stream Processors |
192 |
192 |
800 |
128 |
128 |
Textures Per Clock Cycle |
64 |
64 |
48 |
64 |
64 |
ROPs |
28 |
28 |
32 |
16 |
16 |
Vertex
Shader |
4.0 |
4.0 |
4.1 |
4.0 |
4.0 |
Pixel Shader |
4.0 |
4.0 |
4.1 |
4.0 |
4.0 |
Core Speed |
694 MHz |
576 MHz |
750 MHz |
738 MHz |
675 MHz |
Texture Fill Rate |
44,416 MTexels/s |
36,864 MTexels/s |
36,000 MTexels/s |
47,232 MTexels/s |
43,200 MTexels/s |
Pixel Fill Rate |
19,432 MPixels/s |
16,128 MPixels/s |
24,000 MPixels/s |
11,808 MPixels/s |
10,400 MPixels/s |
Memory
Bus |
448-bits |
448-bits |
256-bits |
256-bits |
256-bits |
Memory |
GDDR3 |
GDDR3 |
GDDR5 |
GDDR3 |
GDDR3 |
Memory Speed |
1285 MHz |
999 MHz |
900 MHz |
1100 MHz |
1100 MHz |
Memory |
143.92 GB/s |
111.89 GB/s |
115.20 GB/s |
70.40 GB/s |
70.40 GB/s |
Wow! Thanks to the overclock, this GeForce GTX 260 had a memory bandwidth of just over 143 GB/s. That's 25% higher than the already phenomenal memory bandwidth of the ATI Radeon HD 4870. The core overclock gave it a texture fillrate somewhere in between the GeForce 8800 GTS 512MB and the GeForce 9800 GTX+, but with almost twice the pixel fillrate.
Alright, let's give the overclocked GeForce GTX 260 a spin and see how well it does against the standard GeForce GTX 260, and other ATI and NVIDIA graphics cards. We will also examine which is more important - fillrate or memory bandwidth.
Testing The Overclocked GeForce GTX 260
Testbed
Processor |
Intel Core 2 Extreme QX9650 |
|
Motherboard |
ASUS P5B-E Plus |
|
Memory |
Two G.Skill 1GB PC2-6400 DDR2 memory modules |
|
Graphics Card |
ATI Radeon HD 4870 |
|
Hard Drives |
120GB Seagate Barracuda 7200.9 SATA hard drive |
|
Operating System |
||
Power Supply |
Mushkin 580W PSU |
The Graphics Cards
Graphics Card |
Core Clock |
Memory Clock |
Memory Bus Width |
Driver |
ATI Radeon HD 4870 |
750 MHz |
900 MHz |
256-bits |
ATI Catalyst 8.7 |
NVIDIA GeForce GTX 260 |
576 MHz |
999 MHz |
448-bits |
NVIDIA ForceWare 177.39 |
NVIDIA GeForce 9800 GTX+ |
738 MHz |
1100 MHz |
256-bits |
NVIDIA ForceWare 177.39 |
NVIDIA GeForce 9800 GTX |
675 MHz |
1100 MHz |
256-bits |
NVIDIA ForceWare 177.39 |
NVIDIA GeForce 8800 GTS 512MB |
650 MHz |
972 MHz |
256-bits |
NVIDIA ForceWare 175.19 |
ATI Radeon HD 3870 |
775 MHz |
1125 MHz |
256-bits |
ATI Catalyst 8.7 |
ATI Radeon HD 3850 |
668 MHz |
828 MHz |
256-bits |
ATI Catalyst 8.7 |
Support Tech ARP!
If you like our work, you can help support out work by visiting our sponsors, participate in the Tech ARP Forums, or even donate to our fund. Any help you can render is greatly appreciated!
<<< The NVIDIA Control Panel, Overclocking The GeForce GTX 260 : Previous Page | Next Page : Testing Methodology, Game Settings >>>
