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GeForce GTX 460 (OEM) vs Radeon HD 4850 1GB

Intro

The GeForce GTX 460 (OEM) makes use of a 40 nm design. nVidia has set the core speed at 650 MHz. The GDDR5 RAM is set to run at a frequency of 850 MHz on this specific model. It features 336 SPUs along with 56 TAUs and 32 Rasterization Operator Units.

Compare those specs to the Radeon HD 4850 1GB, which features a core clock frequency of 625 MHz and a GDDR4 memory speed of 993 MHz. It also uses a 256-bit bus, and uses a 55 nm design. It is comprised of 800(160x5) SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4850 1GB 110 Watts
GeForce GTX 460 (OEM) 150 Watts
Difference: 40 Watts (36%)

Memory Bandwidth

The GeForce GTX 460 (OEM) should theoretically perform a lot faster than the Radeon HD 4850 1GB overall. (explain)

GeForce GTX 460 (OEM) 108800 MB/sec
Radeon HD 4850 1GB 63552 MB/sec
Difference: 45248 (71%)

Texel Rate

The GeForce GTX 460 (OEM) will be quite a bit (approximately 46%) better at texture filtering than the Radeon HD 4850 1GB. (explain)

GeForce GTX 460 (OEM) 36400 Mtexels/sec
Radeon HD 4850 1GB 25000 Mtexels/sec
Difference: 11400 (46%)

Pixel Rate

The GeForce GTX 460 (OEM) will be quite a bit (approximately 108%) more effective at anti-aliasing than the Radeon HD 4850 1GB, and also should be able to handle higher resolutions better. (explain)

GeForce GTX 460 (OEM) 20800 Mpixels/sec
Radeon HD 4850 1GB 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 (OEM)

Amazon.com

Check prices at:

Radeon HD 4850 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.

Specifications

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Model GeForce GTX 460 (OEM) Radeon HD 4850 1GB
Manufacturer nVidia AMD
Year October 2010 Jun 25, 2008
Code Name GF104 RV770 PRO
Memory 1024 MB 1024 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 36400 Mtexels/sec 25000 Mtexels/sec
Pixel Rate 20800 Mpixels/sec 10000 Mpixels/sec
Unified Shaders 336 800(160x5)
Texture Mapping Units 56 40
Render Output Units 32 16
Bus Type GDDR5 GDDR4
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: Memory bandwidth is the largest amount of data (counted in MB per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 460 (OEM)

Amazon.com

Check prices at:

Radeon HD 4850 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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