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GeForce 9800 GTX vs GeForce 9800 GTX+

Intro

The GeForce 9800 GTX features a core clock speed of 675 MHz and a GDDR3 memory frequency of 1100 MHz. It also uses a 256-bit memory bus, and makes use of a 65 nm design. It is comprised of 128 SPUs, 64 TAUs, and 16 Raster Operation Units.

Compare those specs to the GeForce 9800 GTX+, which has a core clock frequency of 738 MHz and a GDDR3 memory speed of 1100 MHz. It also makes use of a 256-bit bus, and uses a 55 nm design. It is made up of 128 SPUs, 64 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GTX 140 Watts
GeForce 9800 GTX+ 145 Watts
Difference: 5 Watts (4%)

Memory Bandwidth

Both cards have the exact same bandwidth, so theoretically they should have identical performance. (explain)

Texel Rate

The GeForce 9800 GTX+ is a small bit (about 9%) better at AF than the GeForce 9800 GTX. (explain)

GeForce 9800 GTX+ 47232 Mtexels/sec
GeForce 9800 GTX 43200 Mtexels/sec
Difference: 4032 (9%)

Pixel Rate

The GeForce 9800 GTX+ should be a bit (about 9%) more effective at anti-aliasing than the GeForce 9800 GTX, and also should be able to handle higher resolutions without slowing down too much. (explain)

GeForce 9800 GTX+ 11808 Mpixels/sec
GeForce 9800 GTX 10800 Mpixels/sec
Difference: 1008 (9%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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GeForce 9800 GTX

Amazon.com

Check prices at:

GeForce 9800 GTX+

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce 9800 GTX GeForce 9800 GTX+
Manufacturer nVidia nVidia
Year April 2008 July 2008
Code Name G92 G92b
Memory 512 MB 512 MB
Core Speed 675 MHz 738 MHz
Memory Speed 2200 MHz 2200 MHz
Power (Max TDP) 140 watts 145 watts
Bandwidth 70400 MB/sec 70400 MB/sec
Texel Rate 43200 Mtexels/sec 47232 Mtexels/sec
Pixel Rate 10800 Mpixels/sec 11808 Mpixels/sec
Unified Shaders 128 128
Texture Mapping Units 64 64
Render Output Units 16 16
Bus Type GDDR3 GDDR3
Bus Width 256-bit 256-bit
Fab Process 65 nm 55 nm
Transistors 754 million 754 million
Bus PCIe x16 2.0 PCIe x16 2.0
DirectX Version DirectX 10 DirectX 10
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce 9800 GTX

Amazon.com

Check prices at:

GeForce 9800 GTX+

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Comments

One Response to “GeForce 9800 GTX vs GeForce 9800 GTX+”
استعلام قیمت این گرافیک - صفحه 2 says:

[...] مقایسه و من هم از 2 سال پیش به ایونر ندیدمش. فرق 9800+ و 9800 GeForce 9800 GTX vs GeForce 9800 GTX+ – Performance Comparison Benchmarks @ Hardware Compare PowerColor4730=100T پاسخ با نقل [...]

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