GeForce 840A vs GT 745A

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Aggregate performance score

We've compared GeForce GT 745A and GeForce 840A, covering specs and all relevant benchmarks.

GT 745A
2013
2 GB DDR3, 33 Watt
3.21
+8.1%

GT 745A outperforms 840A by a small 8% based on our aggregate benchmark results.

Primary details

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

Place in the ranking741773
Place by popularitynot in top-100not in top-100
Power efficiency6.746.23
ArchitectureKepler (2012−2018)Maxwell (2014−2017)
GPU code nameGK107GM108
Market segmentLaptopLaptop
Release date26 August 2013 (11 years ago)17 March 2014 (10 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 cores384384
Core clock speed837 MHz1029 MHz
Boost clock speed915 MHz1124 MHz
Number of transistors1,270 millionno data
Manufacturing process technology28 nm28 nm
Power consumption (TDP)33 Watt33 Watt
Texture fill rate29.2817.98
Floating-point processing power0.7027 TFLOPS0.8632 TFLOPS
ROPs168
TMUs3216

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 3.0 x16PCIe 3.0 x8

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 typeDDR3DDR3
Maximum RAM amount2 GB2 GB
Memory bus width128 Bit64 Bit
Memory clock speed900 MHz1001 MHz
Memory bandwidth28.8 GB/s16.02 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 ConnectorsNo outputsNo outputs

API compatibility

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

DirectX12 (11_0)12 (11_0)
Shader Model5.15.1
OpenGL4.64.6
OpenCL1.21.2
Vulkan1.1.1261.1.126
CUDA3.05.0

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.

GT 745A 3.21
+8.1%
GeForce 840A 2.97

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.

GT 745A 1240
+8.3%
GeForce 840A 1145

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 3.21 2.97
Recency 26 August 2013 17 March 2014

GT 745A has a 8.1% higher aggregate performance score.

GeForce 840A, on the other hand, has an age advantage of 6 months.

Given the minimal performance differences, no clear winner can be declared between GeForce GT 745A and GeForce 840A.


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

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NVIDIA GeForce GT 745A
GeForce GT 745A
NVIDIA GeForce 840A
GeForce 840A

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.


3.4 7 votes

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3.3 8 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.