Radeon HD 7450A vs GeForce 7900 GTX

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Aggregate performance score

We've compared GeForce 7900 GTX with Radeon HD 7450A, including specs and performance data.

7900 GTX
2006
512 MB GDDR3, 84 Watt
1.00
+33.3%

7900 GTX outperforms HD 7450A by a substantial 33% based on our aggregate benchmark results.

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking11051158
Place by popularitynot in top-100not in top-100
Power efficiency0.822.06
ArchitectureCurie (2003−2013)TeraScale 2 (2009−2015)
GPU code nameG71Caicos
Market segmentDesktopLaptop
Release date9 March 2006 (18 years ago)5 January 2012 (12 years ago)

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA coresno data160
Core clock speed650 MHz625 MHz
Number of transistors278 million370 million
Manufacturing process technology90 nm40 nm
Power consumption (TDP)84 Watt25 Watt
Texture fill rate15.605.000
Floating-point processing powerno data0.2 TFLOPS
ROPs164
TMUs248

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

InterfacePCIe 1.0 x16MXM-A (3.0)
Width1-slotno data
Supplementary power connectors1x 6-pinno data

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeGDDR3GDDR3
Maximum RAM amount512 MB512 MB
Memory bus width256 Bit64 Bit
Memory clock speed800 MHz800 MHz
Memory bandwidth51.2 GB/s12.8 GB/s

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors2x DVI, 1x S-VideoNo outputs

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX9.0c (9_3)11.2 (11_0)
Shader Model3.05.0
OpenGL2.14.4
OpenCLN/A1.2
VulkanN/AN/A

Synthetic benchmark performance

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.


Combined synthetic benchmark score

This is our combined benchmark score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

7900 GTX 1.00
+33.3%
HD 7450A 0.75

Passmark

This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

7900 GTX 387
+34.4%
HD 7450A 288

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Pros & cons summary


Performance score 1.00 0.75
Recency 9 March 2006 5 January 2012
Chip lithography 90 nm 40 nm
Power consumption (TDP) 84 Watt 25 Watt

7900 GTX has a 33.3% higher aggregate performance score.

HD 7450A, on the other hand, has an age advantage of 5 years, a 125% more advanced lithography process, and 236% lower power consumption.

The GeForce 7900 GTX is our recommended choice as it beats the Radeon HD 7450A in performance tests.

Be aware that GeForce 7900 GTX is a desktop card while Radeon HD 7450A is a notebook one.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

Vote for your favorite

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NVIDIA GeForce 7900 GTX
GeForce 7900 GTX
AMD Radeon HD 7450A
Radeon HD 7450A

Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


3 23 votes

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4.4 7 votes

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Questions & comments

Here you can ask a question about this comparison, agree or disagree with our judgements, or report an error or mismatch.