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GeForce GTX 285 1GB vs Radeon HD 4670 512MB

Intro

The GeForce GTX 285 1GB uses a 55 nm design. nVidia has clocked the core speed at 648 MHz. The GDDR3 memory is set to run at a frequency of 1242 MHz on this particular model. It features 240 SPUs along with 80 Texture Address Units and 32 Rasterization Operator Units.

Compare that to the Radeon HD 4670 512MB, which makes use of a 55 nm design. AMD has clocked the core frequency at 750 MHz. The GDDR4/GDDR3/DDR3/DDR2 RAM works at a frequency of 1000 MHz on this model. It features 320(64x5) SPUs as well as 32 Texture Address Units and 8 ROPs.

Display Graphs

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Battlefield Bad Company 2

Settings: High Quality
AA: 4x
AF: 8x
Resolution: 1920x1200
Test Machine: Tom's Hardware Test Machine (Source)
GeForce GTX 285 1GB 40 FPS
Radeon HD 4670 512MB 13 FPS
Difference: 27 FPS (208%)

F.E.A.R. 2

Settings: Maximum Quality
AA: 4x
AF: 8x
Resolution: 1920x1200
Test Machine: Unknown (Source)
GeForce GTX 285 1GB 80 FPS
Radeon HD 4670 512MB 32 FPS
Difference: 48 FPS (150%)

Fallout 3

Settings: Very High Quality
AA: 8x
AF: 16x
Resolution: 1920x1200
Test Machine: Tom's Hardware Test Machine (Source)
GeForce GTX 285 1GB 66 FPS
Radeon HD 4670 512MB 24 FPS
Difference: 42 FPS (175%)

Left4Dead

Settings: Very High Quality
AA: 8x
AF: 16x
Resolution: 1920x1200
Test Machine: Tom's Hardware Test Machine (Source)
GeForce GTX 285 1GB 77 FPS
Radeon HD 4670 512MB 30 FPS
Difference: 47 FPS (157%)

Mass Effect 2

Settings: Maximum Quality
AA: none
AF: 8x
Resolution: 1920x1200
Test Machine: Tom's Hardware Test Machine (Source)
GeForce GTX 285 1GB 121 FPS
Radeon HD 4670 512MB 42 FPS
Difference: 79 FPS (188%)

Supreme Commander 2

Settings: High
AA: 8x
AF: 16x
Resolution: 1920x1200
Test Machine: Tom's Hardware Test Machine (Source)
GeForce GTX 285 1GB 44 FPS
Radeon HD 4670 512MB 29 FPS
Difference: 15 FPS (52%)

Tom Clancy's Endwar

Settings: High Quality
AA: 4x
AF: 8x
Resolution: 1920x1200
Test Machine: Tom's Hardware Test Machine (Source)
GeForce GTX 285 1GB 30 FPS
Radeon HD 4670 512MB 14 FPS
Difference: 16 FPS (114%)

GeForce GTX 285 1GB wins

(Based entirely on the benchmarks listed above)

When combining all game benchmark scores on this page together, the GeForce GTX 285 1GB wins overall, by 274 FPS. Please note that we do not have the results of every benchmark ever done for these cards, so the results may differ wildly in different games.

GeForce GTX 285 1GB 458 FPS
Radeon HD 4670 512MB 184 FPS
Difference: 274 FPS (149%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4670 512MB 70 Watts
GeForce GTX 285 1GB 204 Watts
Difference: 134 Watts (191%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 285 1GB should theoretically be a lot better than the Radeon HD 4670 512MB overall. (explain)

GeForce GTX 285 1GB 158976 MB/sec
Radeon HD 4670 512MB 32000 MB/sec
Difference: 126976 (397%)

Texel Rate

The GeForce GTX 285 1GB will be a lot (approximately 116%) better at anisotropic filtering than the Radeon HD 4670 512MB. (explain)

GeForce GTX 285 1GB 51840 Mtexels/sec
Radeon HD 4670 512MB 24000 Mtexels/sec
Difference: 27840 (116%)

Pixel Rate

The GeForce GTX 285 1GB will be much (about 246%) faster with regards to anti-aliasing than the Radeon HD 4670 512MB, and also will be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 285 1GB 20736 Mpixels/sec
Radeon HD 4670 512MB 6000 Mpixels/sec
Difference: 14736 (246%)

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

Display Prices

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GeForce GTX 285 1GB

Amazon.com

Radeon HD 4670 512MB

Amazon.com

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

Display Specifications

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Model GeForce GTX 285 1GB Radeon HD 4670 512MB
Manufacturer nVidia AMD
Year January 15, 2009 Sep 10, 2008
Code Name G200b RV730 XT
Fab Process 55 nm 55 nm
Bus PCIe x16 2.0 PCIe 2.0 x16, AGP 8x
Memory 1024 MB 512 MB
Core Speed 648 MHz 750 MHz
Shader Speed 1476 MHz (N/A) MHz
Memory Speed 2484 MHz 2000 MHz
Unified Shaders 240 320(64x5)
Texture Mapping Units 80 32
Render Output Units 32 8
Bus Type GDDR3 GDDR4/GDDR3/DDR3/DDR2
Bus Width 512-bit 128-bit
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.1 OpenGL 3.0
Power (Max TDP) 204 watts 70 watts
Shader Model 4.0 4.1
Bandwidth 158976 MB/sec 32000 MB/sec
Texel Rate 51840 Mtexels/sec 24000 Mtexels/sec
Pixel Rate 20736 Mpixels/sec 6000 Mpixels/sec

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

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total 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 in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

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