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GeForce 9500 GT DDR2 vs Radeon HD 7770


The GeForce 9500 GT DDR2 has a GPU clock speed of 550 MHz, and the 256 MB of DDR2 RAM runs at 500 MHz through a 128-bit bus. It also features 32 Stream Processors, 16 TAUs, and 8 Raster Operation Units.

Compare that to the Radeon HD 7770, which has GPU core speed of 1000 MHz, and 1024 MB of GDDR5 RAM set to run at 1125 MHz through a 128-bit bus. It also is comprised of 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT DDR2 50 Watts
Radeon HD 7770 80 Watts
Difference: 30 Watts (60%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 7770 will be 350% quicker than the GeForce 9500 GT DDR2 in general, due to its greater bandwidth. (explain)

Radeon HD 7770 72000 MB/sec
GeForce 9500 GT DDR2 16000 MB/sec
Difference: 56000 (350%)

Texel Rate

The Radeon HD 7770 is much (more or less 355%) better at AF than the GeForce 9500 GT DDR2. (explain)

Radeon HD 7770 40000 Mtexels/sec
GeForce 9500 GT DDR2 8800 Mtexels/sec
Difference: 31200 (355%)

Pixel Rate

The Radeon HD 7770 is quite a bit (about 264%) better at AA than the GeForce 9500 GT DDR2, and should be capable of handling higher resolutions more effectively. (explain)

Radeon HD 7770 16000 Mpixels/sec
GeForce 9500 GT DDR2 4400 Mpixels/sec
Difference: 11600 (264%)

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 9500 GT DDR2

Radeon HD 7770

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.


Display Specifications

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Model GeForce 9500 GT DDR2 Radeon HD 7770
Manufacturer nVidia AMD
Year July 2008 February 2012
Code Name G96a Cape Verde XT
Memory 256 MB 1024 MB
Core Speed 550 MHz 1000 MHz
Memory Speed 1000 MHz 4500 MHz
Power (Max TDP) 50 watts 80 watts
Bandwidth 16000 MB/sec 72000 MB/sec
Texel Rate 8800 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 32 640
Texture Mapping Units 16 40
Render Output Units 8 16
Bus Type DDR2 GDDR5
Bus Width 128-bit 128-bit
Fab Process 65 nm 28 nm
Transistors 314 million 1500 million
Bus PCIe x16 2.0, PCI PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.1
OpenGL Version OpenGL 3.0 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the bus width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.


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