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GeForce GTX 650 vs Radeon HD 4350

Intro

The GeForce GTX 650 has core clock speeds of 1058 MHz on the GPU, and 1250 MHz on the 2048 MB of GDDR5 RAM. It features 384 SPUs along with 32 Texture Address Units and 16 ROPs.

Compare all of that to the Radeon HD 4350, which comes with a GPU core clock speed of 575 MHz, and 512 MB of DDR2 memory running at 500 MHz through a 64-bit bus. It also features 80(16x5) Stream Processors, 8 TAUs, and 4 Raster Operation Units.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4350 22 Watts
GeForce GTX 650 64 Watts
Difference: 42 Watts (191%)

Memory Bandwidth

Theoretically, the GeForce GTX 650 should be quite a bit faster than the Radeon HD 4350 overall. (explain)

GeForce GTX 650 80000 MB/sec
Radeon HD 4350 8000 MB/sec
Difference: 72000 (900%)

Texel Rate

The GeForce GTX 650 will be a lot (more or less 636%) faster with regards to AF than the Radeon HD 4350. (explain)

GeForce GTX 650 33856 Mtexels/sec
Radeon HD 4350 4600 Mtexels/sec
Difference: 29256 (636%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 650 is a better choice, by a large margin. (explain)

GeForce GTX 650 16928 Mpixels/sec
Radeon HD 4350 2300 Mpixels/sec
Difference: 14628 (636%)

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 650

Amazon.com

Radeon HD 4350

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

Model GeForce GTX 650 Radeon HD 4350
Manufacturer nVidia AMD
Year September 2012 Sep 30, 2008
Code Name GK107 RV710
Fab Process 28 nm 55 nm
Bus PCIe 3.0 x16 PCIe 2.0 x16, PCI
Memory 2048 MB 512 MB
Core Speed 1058 MHz 575 MHz
Shader Speed 1058 MHz (N/A) MHz
Memory Speed 1250 MHz (5000 MHz effective) 500 MHz (1000 MHz effective)
Unified Shaders 384 80(16x5)
Texture Mapping Units 32 8
Render Output Units 16 4
Bus Type GDDR5 DDR2
Bus Width 128-bit 64-bit
DirectX Version DirectX 11.0 DirectX 10.1
OpenGL Version OpenGL 4.3 OpenGL 3.0
Power (Max TDP) 64 watts 22 watts
Shader Model 5.0 4.1
Bandwidth 80000 MB/sec 8000 MB/sec
Texel Rate 33856 Mtexels/sec 4600 Mtexels/sec
Pixel Rate 16928 Mpixels/sec 2300 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total amount of texture units of the card by the core 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 in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

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