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GeForce GT 230 vs Radeon HD 4670 512MB

Intro

The GeForce GT 230 features a GPU clock speed of 550 MHz, and the 1536 MB of DDR3 RAM runs at 800 MHz through a 192-bit bus. It also is comprised of 32 Stream Processors, 16 Texture Address Units, and 8 ROPs.

Compare those specs to the Radeon HD 4670 512MB, which has a clock frequency of 750 MHz and a GDDR4/GDDR3/DDR3/DDR2 memory frequency of 1000 MHz. It also features a 128-bit bus, and makes use of a 55 nm design. It is made up of 320(64x5) SPUs, 32 Texture Address Units, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 230 65 Watts
Radeon HD 4670 512MB 70 Watts
Difference: 5 Watts (8%)

Memory Bandwidth

In theory, the GeForce GT 230 should be 20% quicker than the Radeon HD 4670 512MB in general, because of its higher data rate. (explain)

GeForce GT 230 38400 MB/sec
Radeon HD 4670 512MB 32000 MB/sec
Difference: 6400 (20%)

Texel Rate

The Radeon HD 4670 512MB is a lot (approximately 173%) more effective at AF than the GeForce GT 230. (explain)

Radeon HD 4670 512MB 24000 Mtexels/sec
GeForce GT 230 8800 Mtexels/sec
Difference: 15200 (173%)

Pixel Rate

The Radeon HD 4670 512MB should be much (more or less 36%) more effective at full screen anti-aliasing than the GeForce GT 230, and capable of handling higher resolutions better. (explain)

Radeon HD 4670 512MB 6000 Mpixels/sec
GeForce GT 230 4400 Mpixels/sec
Difference: 1600 (36%)

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 230

Amazon.com

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Radeon HD 4670 512MB

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 230 Radeon HD 4670 512MB
Manufacturer nVidia AMD
Year October 2009 Sep 10, 2008
Code Name GT218 RV730 XT
Memory 1536 MB 512 MB
Core Speed 550 MHz 750 MHz
Memory Speed 1600 MHz 2000 MHz
Power (Max TDP) 65 watts 70 watts
Bandwidth 38400 MB/sec 32000 MB/sec
Texel Rate 8800 Mtexels/sec 24000 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 6000 Mpixels/sec
Unified Shaders 32 320(64x5)
Texture Mapping Units 16 32
Render Output Units 8 8
Bus Type DDR3 GDDR4/GDDR3/DDR3/DDR2
Bus Width 192-bit 128-bit
Fab Process 40 nm 55 nm
Transistors 260 million 514 million
Bus PCIe 2.0 PCIe 2.0 x16, AGP 8x
DirectX Version DirectX 10.1 DirectX 10.1
OpenGL Version OpenGL 3.2 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 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, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of texture units 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 in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GT 230

Amazon.com

Check prices at:

Radeon HD 4670 512MB

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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