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GeForce GTX 470 vs Radeon HD 4750

Intro

The GeForce GTX 470 makes use of a 40 nm design. nVidia has set the core frequency at 607 MHz. The GDDR5 memory is set to run at a frequency of 837 MHz on this specific card. It features 448 SPUs along with 56 TAUs and 40 Rasterization Operator Units.

Compare all of that to the Radeon HD 4750, which has clock speeds of 730 MHz on the GPU, and 800 MHz on the 512 MB of GDDR5 RAM. It features 640(128x5) SPUs along with 32 Texture Address Units and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4750 75 Watts
GeForce GTX 470 215 Watts
Difference: 140 Watts (187%)

Memory Bandwidth

Theoretically, the GeForce GTX 470 should be a lot faster than the Radeon HD 4750 overall. (explain)

GeForce GTX 470 133920 MB/sec
Radeon HD 4750 51200 MB/sec
Difference: 82720 (162%)

Texel Rate

The GeForce GTX 470 should be a lot (about 46%) more effective at texture filtering than the Radeon HD 4750. (explain)

GeForce GTX 470 33992 Mtexels/sec
Radeon HD 4750 23360 Mtexels/sec
Difference: 10632 (46%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 470 is superior to the Radeon HD 4750, by a large margin. (explain)

GeForce GTX 470 24280 Mpixels/sec
Radeon HD 4750 11680 Mpixels/sec
Difference: 12600 (108%)

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 GTX 470

Amazon.com

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Radeon HD 4750

Amazon.com

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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 GTX 470 Radeon HD 4750
Manufacturer nVidia AMD
Year March 2010
Code Name GF100 RV740
Memory 1280 MB 512 MB
Core Speed 607 MHz 730 MHz
Memory Speed 3348 MHz 3200 MHz
Power (Max TDP) 215 watts 75 watts
Bandwidth 133920 MB/sec 51200 MB/sec
Texel Rate 33992 Mtexels/sec 23360 Mtexels/sec
Pixel Rate 24280 Mpixels/sec 11680 Mpixels/sec
Unified Shaders 448 640(128x5)
Texture Mapping Units 56 32
Render Output Units 40 16
Bus Type GDDR5 GDDR5
Bus Width 320-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 3000 million 826 million
Bus PCIe x16 PCIe 2.0 x16
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in MB per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR 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 higher 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 the video card could possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce GTX 470

Amazon.com

Check prices at:

Radeon HD 4750

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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