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GeForce GTX 460 SE vs Radeon HD 4850 512MB

Intro

The GeForce GTX 460 SE has a clock speed of 650 MHz and a GDDR5 memory speed of 850 MHz. It also makes use of a 256-bit memory bus, and makes use of a 40 nm design. It is comprised of 288 SPUs, 48 TAUs, and 32 ROPs.

Compare those specs to the Radeon HD 4850 512MB, which makes use of a 55 nm design. AMD has set the core frequency at 625 MHz. The GDDR3 RAM runs at a frequency of 993 MHz on this specific model. It features 800(160x5) SPUs along with 40 Texture Address Units and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4850 512MB 110 Watts
GeForce GTX 460 SE 150 Watts
Difference: 40 Watts (36%)

Memory Bandwidth

In theory, the GeForce GTX 460 SE is 71% faster than the Radeon HD 4850 512MB overall, due to its greater data rate. (explain)

GeForce GTX 460 SE 108800 MB/sec
Radeon HD 4850 512MB 63552 MB/sec
Difference: 45248 (71%)

Texel Rate

The GeForce GTX 460 SE should be a lot (approximately 25%) faster with regards to AF than the Radeon HD 4850 512MB. (explain)

GeForce GTX 460 SE 31200 Mtexels/sec
Radeon HD 4850 512MB 25000 Mtexels/sec
Difference: 6200 (25%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 460 SE is superior to the Radeon HD 4850 512MB, and very much so. (explain)

GeForce GTX 460 SE 20800 Mpixels/sec
Radeon HD 4850 512MB 10000 Mpixels/sec
Difference: 10800 (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 460 SE

Amazon.com

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Radeon HD 4850 512MB

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 460 SE Radeon HD 4850 512MB
Manufacturer nVidia AMD
Year November 2010 Jun 25, 2008
Code Name GF104 RV770 PRO
Memory 1024 MB 512 MB
Core Speed 650 MHz 625 MHz
Memory Speed 3400 MHz 1986 MHz
Power (Max TDP) 150 watts 110 watts
Bandwidth 108800 MB/sec 63552 MB/sec
Texel Rate 31200 Mtexels/sec 25000 Mtexels/sec
Pixel Rate 20800 Mpixels/sec 10000 Mpixels/sec
Unified Shaders 288 800(160x5)
Texture Mapping Units 48 40
Render Output Units 32 16
Bus Type GDDR5 GDDR3
Bus Width 256-bit 256-bit
Fab Process 40 nm 55 nm
Transistors 1950 million 956 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: Bandwidth is the max amount of information (counted in MB per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the bus width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, 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 most pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines 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 fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 460 SE

Amazon.com

Check prices at:

Radeon HD 4850 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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