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GeForce GT 310 vs Radeon HD 6450 (OEM) 1GB

Intro

The GeForce GT 310 uses a 40 nm design. nVidia has clocked the core frequency at 589 MHz. The DDR2 RAM works at a frequency of 1000 MHz on this particular card. It features 16 SPUs along with 8 TAUs and 4 ROPs.

Compare those specifications to the Radeon HD 6450 (OEM) 1GB, which features GPU core speed of 750 MHz, and 1024 MB of GDDR5 memory running at 900 MHz through a 64-bit bus. It also is comprised of 160 SPUs, 8 Texture Address Units, and 4 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Theoretically speaking, the Radeon HD 6450 (OEM) 1GB will be 80% faster than the GeForce GT 310 overall, due to its greater bandwidth. (explain)

Radeon HD 6450 (OEM) 1GB 28800 MB/sec
GeForce GT 310 16000 MB/sec
Difference: 12800 (80%)

Texel Rate

The Radeon HD 6450 (OEM) 1GB is much (about 27%) faster with regards to AF than the GeForce GT 310. (explain)

Radeon HD 6450 (OEM) 1GB 6000 Mtexels/sec
GeForce GT 310 4712 Mtexels/sec
Difference: 1288 (27%)

Pixel Rate

The Radeon HD 6450 (OEM) 1GB should be a lot (about 27%) better at anti-aliasing than the GeForce GT 310, and capable of handling higher resolutions more effectively. (explain)

Radeon HD 6450 (OEM) 1GB 3000 Mpixels/sec
GeForce GT 310 2356 Mpixels/sec
Difference: 644 (27%)

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 GT 310

Amazon.com

Check prices at:

Radeon HD 6450 (OEM) 1GB

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 GT 310 Radeon HD 6450 (OEM) 1GB
Manufacturer nVidia AMD
Year November 2009 February 2011
Code Name GT218 Caicos
Memory 512 MB 1024 MB
Core Speed 589 MHz 750 MHz
Memory Speed 2000 MHz 3600 MHz
Power (Max TDP) 31 watts 31 watts
Bandwidth 16000 MB/sec 28800 MB/sec
Texel Rate 4712 Mtexels/sec 6000 Mtexels/sec
Pixel Rate 2356 Mpixels/sec 3000 Mpixels/sec
Unified Shaders 16 160
Texture Mapping Units 8 8
Render Output Units 4 4
Bus Type DDR2 GDDR5
Bus Width 64-bit 64-bit
Fab Process 40 nm 40 nm
Transistors 260 million 370 million
Bus PCIe 2.0 PCIe 2.1 x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in MB per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

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

Display Prices

Hide Prices

GeForce GT 310

Amazon.com

Check prices at:

Radeon HD 6450 (OEM) 1GB

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.

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