Join Us On Facebook

Compare any two graphics cards:
VS

GeForce 9500 GT 512MB GDDR3 vs Radeon HD 5450

Intro

The GeForce 9500 GT 512MB GDDR3 makes use of a 55 nm design. nVidia has set the core speed at 550 MHz. The GDDR3 memory works at a speed of 800 MHz on this model. It features 32 SPUs along with 16 TAUs and 8 Rasterization Operator Units.

Compare those specifications to the Radeon HD 5450, which has clock speeds of 650 MHz on the GPU, and 800 MHz on the 512 MB of DDR3 RAM. It features 80(16x5) SPUs along with 8 Texture Address Units and 4 Rasterization Operator Units.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450 19 Watts
GeForce 9500 GT 512MB GDDR3 50 Watts
Difference: 31 Watts (163%)

Memory Bandwidth

Performance-wise, the GeForce 9500 GT 512MB GDDR3 should theoretically be quite a bit better than the Radeon HD 5450 overall. (explain)

GeForce 9500 GT 512MB GDDR3 25600 MB/sec
Radeon HD 5450 12800 MB/sec
Difference: 12800 (100%)

Texel Rate

The GeForce 9500 GT 512MB GDDR3 will be a lot (approximately 69%) better at AF than the Radeon HD 5450. (explain)

GeForce 9500 GT 512MB GDDR3 8800 Mtexels/sec
Radeon HD 5450 5200 Mtexels/sec
Difference: 3600 (69%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce 9500 GT 512MB GDDR3 is the winner, and very much so. (explain)

GeForce 9500 GT 512MB GDDR3 4400 Mpixels/sec
Radeon HD 5450 2600 Mpixels/sec
Difference: 1800 (69%)

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 9500 GT 512MB GDDR3

Amazon.com

Radeon HD 5450

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 9500 GT 512MB GDDR3 Radeon HD 5450
Manufacturer nVidia AMD
Year July 2008 February 4, 2010
Code Name G96b Cedar PRO
Fab Process 55 nm 40 nm
Bus PCIe x16 2.0, PCI PCIe 2.1 x16
Memory 512 MB 512 MB
Core Speed 550 MHz 650 MHz
Shader Speed 1400 MHz (N/A) MHz
Memory Speed 800 MHz (1600 MHz effective) 800 MHz (1600 MHz effective)
Unified Shaders 32 80(16x5)
Texture Mapping Units 16 8
Render Output Units 8 4
Bus Type GDDR3 DDR3
Bus Width 128-bit 64-bit
DirectX Version DirectX 10 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 3.2
Power (Max TDP) 50 watts 19 watts
Shader Model 4.0 5.0
Bandwidth 25600 MB/sec 12800 MB/sec
Texel Rate 8800 Mtexels/sec 5200 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 2600 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be transported over 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 it uses DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of texture units 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 applied in one second.

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

Comments

Be the first to leave a comment!

Your email address will not be published.


You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

Spam Protection by WP-SpamFree