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GeForce GT 230 vs Radeon HD 4670 1GB

Intro

The GeForce GT 230 uses a 40 nm design. nVidia has clocked the core frequency at 550 MHz. The DDR3 memory is set to run at a frequency of 800 MHz on this specific model. It features 32 SPUs as well as 16 Texture Address Units and 8 Rasterization Operator Units.

Compare those specifications to the Radeon HD 4670 1GB, which makes use of a 55 nm design. AMD has set the core frequency at 750 MHz. The GDDR4/GDDR3/DDR3/DDR2 memory runs at a speed of 1100 MHz on this particular model. It features 320(64x5) SPUs along with 32 TAUs and 8 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 230 65 Watts
Radeon HD 4670 1GB 70 Watts
Difference: 5 Watts (8%)

Memory Bandwidth

Performance-wise, the GeForce GT 230 should in theory be just a bit better than the Radeon HD 4670 1GB in general. (explain)

GeForce GT 230 38400 MB/sec
Radeon HD 4670 1GB 35200 MB/sec
Difference: 3200 (9%)

Texel Rate

The Radeon HD 4670 1GB is a lot (about 173%) better at texture filtering than the GeForce GT 230. (explain)

Radeon HD 4670 1GB 24000 Mtexels/sec
GeForce GT 230 8800 Mtexels/sec
Difference: 15200 (173%)

Pixel Rate

The Radeon HD 4670 1GB will be a lot (more or less 36%) faster with regards to AA than the GeForce GT 230, and also should be capable of handling higher resolutions while still performing well. (explain)

Radeon HD 4670 1GB 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 1GB

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 GT 230 Radeon HD 4670 1GB
Manufacturer nVidia AMD
Year October 2009 Sep 10, 2008
Code Name GT218 RV730 XT
Memory 1536 MB 1024 MB
Core Speed 550 MHz 750 MHz
Memory Speed 1600 MHz 2200 MHz
Power (Max TDP) 65 watts 70 watts
Bandwidth 38400 MB/sec 35200 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 (in units of megabytes per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster 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 applied in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, 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 amount of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GT 230

Amazon.com

Check prices at:

Radeon HD 4670 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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