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GeForce GT 340 1GB vs Radeon HD 4750

Intro

The GeForce GT 340 1GB comes with clock speeds of 550 MHz on the GPU, and 850 MHz on the 1024 MB of GDDR5 RAM. It features 96 SPUs along with 32 Texture Address Units and 8 Rasterization Operator Units.

Compare those specifications to the Radeon HD 4750, which comes with GPU clock speed of 730 MHz, and 512 MB of GDDR5 memory running at 800 MHz through a 128-bit bus. It also is comprised of 640(128x5) Stream Processors, 32 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB 69 Watts
Radeon HD 4750 75 Watts
Difference: 6 Watts (9%)

Memory Bandwidth

Performance-wise, the GeForce GT 340 1GB should in theory be a little bit better than the Radeon HD 4750 in general. (explain)

GeForce GT 340 1GB 54400 MB/sec
Radeon HD 4750 51200 MB/sec
Difference: 3200 (6%)

Texel Rate

The Radeon HD 4750 is quite a bit (about 33%) faster with regards to AF than the GeForce GT 340 1GB. (explain)

Radeon HD 4750 23360 Mtexels/sec
GeForce GT 340 1GB 17600 Mtexels/sec
Difference: 5760 (33%)

Pixel Rate

The Radeon HD 4750 is a lot (approximately 165%) faster with regards to full screen anti-aliasing than the GeForce GT 340 1GB, and will be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon HD 4750 11680 Mpixels/sec
GeForce GT 340 1GB 4400 Mpixels/sec
Difference: 7280 (165%)

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 GT 340 1GB

Amazon.com

Check prices at:

Radeon HD 4750

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 GT 340 1GB Radeon HD 4750
Manufacturer nVidia AMD
Year February 2010
Code Name GT215 RV740
Memory 1024 MB 512 MB
Core Speed 550 MHz 730 MHz
Memory Speed 3400 MHz 3200 MHz
Power (Max TDP) 69 watts 75 watts
Bandwidth 54400 MB/sec 51200 MB/sec
Texel Rate 17600 Mtexels/sec 23360 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 11680 Mpixels/sec
Unified Shaders 96 640(128x5)
Texture Mapping Units 32 32
Render Output Units 8 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 727 million 826 million
Bus PCIe x16 PCIe 2.0 x16
DirectX Version DirectX 10.1 DirectX 10.1
OpenGL Version OpenGL 3.3 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in MB per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core 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 many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GT 340 1GB

Amazon.com

Check prices at:

Radeon HD 4750

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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