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GeForce GTX 460 1GB vs Radeon HD 4670 512MB

Intro

The GeForce GTX 460 1GB uses a 40 nm design. nVidia has set the core speed at 675 MHz. The GDDR5 RAM works at a speed of 900 MHz on this model. It features 336 SPUs as well as 56 Texture Address Units and 32 Rasterization Operator Units.

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

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4670 512MB 70 Watts
GeForce GTX 460 1GB 160 Watts
Difference: 90 Watts (129%)

Memory Bandwidth

In theory, the GeForce GTX 460 1GB should be much faster than the Radeon HD 4670 512MB in general. (explain)

GeForce GTX 460 1GB 115200 MB/sec
Radeon HD 4670 512MB 32000 MB/sec
Difference: 83200 (260%)

Texel Rate

The GeForce GTX 460 1GB should be much (more or less 58%) better at anisotropic filtering than the Radeon HD 4670 512MB. (explain)

GeForce GTX 460 1GB 37800 Mtexels/sec
Radeon HD 4670 512MB 24000 Mtexels/sec
Difference: 13800 (58%)

Pixel Rate

The GeForce GTX 460 1GB will be quite a bit (about 260%) better at FSAA than the Radeon HD 4670 512MB, and should be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 460 1GB 21600 Mpixels/sec
Radeon HD 4670 512MB 6000 Mpixels/sec
Difference: 15600 (260%)

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 460 1GB

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.

Specifications

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Model GeForce GTX 460 1GB Radeon HD 4670 512MB
Manufacturer nVidia AMD
Year July 2010 Sep 10, 2008
Code Name GF104 RV730 XT
Memory 1024 MB 512 MB
Core Speed 675 MHz 750 MHz
Memory Speed 3600 MHz 2000 MHz
Power (Max TDP) 160 watts 70 watts
Bandwidth 115200 MB/sec 32000 MB/sec
Texel Rate 37800 Mtexels/sec 24000 Mtexels/sec
Pixel Rate 21600 Mpixels/sec 6000 Mpixels/sec
Unified Shaders 336 320(64x5)
Texture Mapping Units 56 32
Render Output Units 32 8
Bus Type GDDR5 GDDR4/GDDR3/DDR3/DDR2
Bus Width 256-bit 128-bit
Fab Process 40 nm 55 nm
Transistors 1950 million 514 million
Bus PCIe x16 PCIe 2.0 x16, AGP 8x
DirectX Version DirectX 11 DirectX 10.1
OpenGL Version OpenGL 4.1 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of MB per second) that can be transported past the external memory interface within a second. It is calculated by multiplying the bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range 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 number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 460 1GB

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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