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GeForce GTX 460 1GB vs Radeon HD 6850


Intro

The GeForce GTX 460 1GB features a clock speed of 675 MHz and a GDDR5 memory frequency of 900 MHz. It also features a 256-bit bus, and uses a 40 nm design. It is made up of 336 SPUs, 56 Texture Address Units, and 32 ROPs.

Compare those specs to the Radeon HD 6850, which features clock speeds of 775 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 960 SPUs as well as 48 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6850 127 Watts
GeForce GTX 460 1GB 160 Watts
Difference: 33 Watts (26%)

Memory Bandwidth

In theory, the Radeon HD 6850 should be 11% faster than the GeForce GTX 460 1GB overall, due to its higher data rate. (explain)

Radeon HD 6850 128000 MB/sec
GeForce GTX 460 1GB 115200 MB/sec
Difference: 12800 (11%)

Texel Rate

The GeForce GTX 460 1GB is a bit (about 2%) better at AF than the Radeon HD 6850. (explain)

GeForce GTX 460 1GB 37800 Mtexels/sec
Radeon HD 6850 37200 Mtexels/sec
Difference: 600 (2%)

Pixel Rate

The Radeon HD 6850 should be just a bit (approximately 15%) faster with regards to full screen anti-aliasing than the GeForce GTX 460 1GB, and should be capable of handling higher resolutions more effectively. (explain)

Radeon HD 6850 24800 Mpixels/sec
GeForce GTX 460 1GB 21600 Mpixels/sec
Difference: 3200 (15%)

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

GeForce GTX 460 1GB

Radeon HD 6850

Specifications

Display Specifications

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Model GeForce GTX 460 1GB Radeon HD 6850
Manufacturer nVidia AMD
Year July 2010 October 2010
Code Name GF104 Barts Pro
Memory 1024 MB 1024 MB
Core Speed 675 MHz 775 MHz
Memory Speed 3600 MHz 4000 MHz
Power (Max TDP) 160 watts 127 watts
Bandwidth 115200 MB/sec 128000 MB/sec
Texel Rate 37800 Mtexels/sec 37200 Mtexels/sec
Pixel Rate 21600 Mpixels/sec 24800 Mpixels/sec
Unified Shaders 336 960
Texture Mapping Units 56 48
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 1950 million 1700 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the largest amount of information (in units of MB per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total texture units of the card by the core clock 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 in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number 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 filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

GeForce GTX 460 1GB

Radeon HD 6850

Comments

5 Responses to “GeForce GTX 460 1GB vs Radeon HD 6850”
Para los que siempre preguntan que tal es la Vga... - psicofxp.com says:

[...] [...]

Mi Primer I5 o Phenom x6x says:

[...] el uso de win 64bits... y aqui te dejo la tarjeta de video que voy a usar (supuestamente ) GeForce GTX 460 1GB vs Radeon HD 6850 – Performance Comparison Benchmarks @ Hardware Compare la compare con la que te recomendo arh91........ varia en 4991 (pago cash) en pcfactory y si no [...]

Graphics Cards related queries here. - Page 467 - Digit Technology Discussion Forum says:

[...] Graphics Cards related queries here. Look at the comparisions here. GTX 460 and HD 6850: GeForce GTX 460 1GB vs Radeon HD 6850 – Performance Comparison Benchmarks @ Hardware Compare Winner -- HD 6850 GTX 550Ti and HD 6770 GeForce GTX 550 Ti vs Radeon HD 6770 – Performance [...]

bowss says:

HD 6850 CLEAR WINNER THIS CARD WILL LAST YOU 3-4 YEARS VERY GOOD PERFORMANCE TRUST ME !

Diablo 3 Release Date - Page 2 - Club3G Forum : Mitsubishi Eclipse 3G Forums says:

[...] crossfired xD) If you're dead set on one of those two cards, the 6850 is the way to go (see here:GeForce GTX 460 1GB vs Radeon HD 6850 – Performance Comparison Benchmarks @ Hardware Compare) That CPU is pretty decent, it's 5th down from the top (See here: Gaming CPU Hierarchy Chart : [...]

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