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GeForce GTS 450 1GB vs Radeon HD 7750

Intro

The GeForce GTS 450 1GB has a GPU core speed of 783 MHz, and the 1024 MB of GDDR5 RAM is set to run at 902 MHz through a 128-bit bus. It also is comprised of 192 Stream Processors, 32 Texture Address Units, and 16 ROPs.

Compare all of that to the Radeon HD 7750, which has a GPU core clock speed of 800 MHz, and 1024 MB of GDDR5 RAM set to run at 1125 MHz through a 128-bit bus. It also is comprised of 512 Stream Processors, 32 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750 55 Watts
GeForce GTS 450 1GB 106 Watts
Difference: 51 Watts (93%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 7750 will be 25% quicker than the GeForce GTS 450 1GB overall, due to its greater bandwidth. (explain)

Radeon HD 7750 72000 MB/sec
GeForce GTS 450 1GB 57728 MB/sec
Difference: 14272 (25%)

Texel Rate

The Radeon HD 7750 will be a small bit (approximately 2%) better at texture filtering than the GeForce GTS 450 1GB. (explain)

Radeon HD 7750 25600 Mtexels/sec
GeForce GTS 450 1GB 25056 Mtexels/sec
Difference: 544 (2%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 7750 is a better choice, though not by far. (explain)

Radeon HD 7750 12800 Mpixels/sec
GeForce GTS 450 1GB 12528 Mpixels/sec
Difference: 272 (2%)

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 450 1GB

Amazon.com

Check prices at:

Radeon HD 7750

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 450 1GB Radeon HD 7750
Manufacturer nVidia AMD
Year September 2010 February 2012
Code Name GF106 Cape Verde Pro
Memory 1024 MB 1024 MB
Core Speed 783 MHz 800 MHz
Memory Speed 3608 MHz 4500 MHz
Power (Max TDP) 106 watts 55 watts
Bandwidth 57728 MB/sec 72000 MB/sec
Texel Rate 25056 Mtexels/sec 25600 Mtexels/sec
Pixel Rate 12528 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 192 512
Texture Mapping Units 32 32
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 1170 million 1500 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.1 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the maximum amount of information (in units of MB per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, 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 amount of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

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

Display Prices

Hide Prices

GeForce GTS 450 1GB

Amazon.com

Check prices at:

Radeon HD 7750

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 GTS 450 1GB vs Radeon HD 7750”
RST014 says:

Beti ya.. kalo gts 450 kykny gak worth deh.. Coz hd 7750 lebih murah, lebih powerfull dan lebih hemat daya. 5 jempol dah buat 7750...tapi ya itu ATi nggak punya CUDA + physX...

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