NVIDIA GeForce 840A vs ATI Radeon HD 3850 X2

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Combined performance score

ATI HD 3850 X2
2.12

GeForce 840A outperforms Radeon HD 3850 X2 by 43% in our combined benchmark results.

General info

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

Place in performance ranking821724
Place by popularitynot in top-100not in top-100
ArchitectureTeraScale (2005−2013)Maxwell (2014−2018)
GPU code nameRV670GM108
Market segmentDesktopDesktop
Release date4 April 2008 (15 years old)17 March 2014 (10 years old)
Launch price (MSRP)$349 no data

Technical specs

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores320384
Core clock speed669 MHz1029 MHz
Boost clock speedno data1124 MHz
Number of transistors666 millionno data
Manufacturing process technology55 nm28 nm
Power consumption (TDP)140 Watt33 Watt
Texture fill rate10.7017.98
Floating-point performance2x 428.2 gflops863.2 gflops

Size and 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 2.0 x16PCIe 3.0 x8
Length267 mmno data
Width2-slotIGP

Memory

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 typeGDDR3DDR3
Maximum RAM amount512 MB2 GB
Memory bus width256 Bit64 Bit
Memory clock speed1656 MHz2002 MHz
Memory bandwidth52.99 GB/s16.02 GB/s

Video outputs and ports

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 support

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

DirectX10.1 (10_1)12 (11_0)
Shader Model4.15.1
OpenGL3.34.6
OpenCLN/A1.2
VulkanN/A1.1.126
CUDAno data5.0

Synthetic benchmark performance

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


Combined synthetic benchmark score

This is our combined benchmark performance 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.

ATI HD 3850 X2 2.12
GeForce 840A 3.04
+43.4%

GeForce 840A outperforms Radeon HD 3850 X2 by 43% in our combined benchmark results.


Passmark

This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. 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.

Benchmark coverage: 25%

ATI HD 3850 X2 822
GeForce 840A 1179
+43.4%

GeForce 840A outperforms Radeon HD 3850 X2 by 43% in Passmark.

Gaming performance

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

Advantages and disadvantages


Performance score 2.12 3.04
Recency 4 April 2008 17 March 2014
Maximum RAM amount 512 MB 2 GB
Chip lithography 55 nm 28 nm
Power consumption (TDP) 140 Watt 33 Watt

The GeForce 840A is our recommended choice as it beats the Radeon HD 3850 X2 in performance tests.


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

User ratings

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


ATI Radeon HD 3850 X2
Radeon HD 3850 X2
NVIDIA GeForce 840A
GeForce 840A

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User ratings: view and submit

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


2.3 6 votes

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3.3 8 votes

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Questions and comments

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