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GeForce GTS 250 1GB vs Radeon HD 6450 (OEM)

Intro

The GeForce GTS 250 1GB comes with clock speeds of 738 MHz on the GPU, and 1100 MHz on the 1024 MB of GDDR3 memory. It features 128 SPUs along with 64 TAUs and 16 ROPs.

Compare those specs to the Radeon HD 6450 (OEM), which features clock speeds of 625 MHz on the GPU, and 800 MHz on the 512 MB of GDDR3 RAM. It features 160 SPUs along with 8 Texture Address Units and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM) 31 Watts
GeForce GTS 250 1GB 145 Watts
Difference: 114 Watts (368%)

Memory Bandwidth

The GeForce GTS 250 1GB should theoretically be much faster than the Radeon HD 6450 (OEM) in general. (explain)

GeForce GTS 250 1GB 70400 MB/sec
Radeon HD 6450 (OEM) 12800 MB/sec
Difference: 57600 (450%)

Texel Rate

The GeForce GTS 250 1GB should be quite a bit (more or less 845%) more effective at texture filtering than the Radeon HD 6450 (OEM). (explain)

GeForce GTS 250 1GB 47232 Mtexels/sec
Radeon HD 6450 (OEM) 5000 Mtexels/sec
Difference: 42232 (845%)

Pixel Rate

The GeForce GTS 250 1GB is quite a bit (about 372%) more effective at full screen anti-aliasing than the Radeon HD 6450 (OEM), and also will be able to handle higher resolutions more effectively. (explain)

GeForce GTS 250 1GB 11808 Mpixels/sec
Radeon HD 6450 (OEM) 2500 Mpixels/sec
Difference: 9308 (372%)

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 GTS 250 1GB

Amazon.com

Check prices at:

Radeon HD 6450 (OEM)

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 GTS 250 1GB Radeon HD 6450 (OEM)
Manufacturer nVidia AMD
Year March 3, 2009 February 2011
Code Name G92a/b Caicos
Memory 1024 MB 512 MB
Core Speed 738 MHz 625 MHz
Memory Speed 2200 MHz 1600 MHz
Power (Max TDP) 145 watts 31 watts
Bandwidth 70400 MB/sec 12800 MB/sec
Texel Rate 47232 Mtexels/sec 5000 Mtexels/sec
Pixel Rate 11808 Mpixels/sec 2500 Mpixels/sec
Unified Shaders 128 160
Texture Mapping Units 64 8
Render Output Units 16 4
Bus Type GDDR3 GDDR3
Bus Width 256-bit 64-bit
Fab Process 65/55 nm 40 nm
Transistors 754 million 370 million
Bus PCIe x16 2.0 PCIe 2.1 x16
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in MB per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTS 250 1GB

Amazon.com

Check prices at:

Radeon HD 6450 (OEM)

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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