CMP 170HX vs GeForce GT 640

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Primary details

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

Place in the ranking767not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.20no data
Power efficiency3.27no data
ArchitectureKepler (2012−2018)Ampere (2020−2024)
GPU code nameGK107GA100
Market segmentDesktopWorkstation
Release date5 June 2012 (12 years ago)1 September 2021 (3 years ago)
Launch price (MSRP)$99 $4,299

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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 cores3844480
Core clock speed902 MHz1140 MHz
Boost clock speedno data1410 MHz
Number of transistors1,270 million54,200 million
Manufacturing process technology28 nm7 nm
Power consumption (TDP)65 Watt250 Watt
Texture fill rate28.86394.8
Floating-point processing power0.6927 TFLOPS12.63 TFLOPS
ROPs16128
TMUs32280
Tensor Coresno data280

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 4.0 x4
Length145 mmno data
Width1-slotIGP
Supplementary power connectorsNone2x 8-pin

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 typeDDR3HBM2e
Maximum RAM amount2 GB16 GB
Memory bus width128 Bit4096 Bit
Memory clock speed891 MHz1458 MHz
Memory bandwidth28.51 GB/s1,493 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 Connectors1x DVI, 1x HDMI, 1x DisplayPortNo outputs
HDMI+-

API compatibility

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

DirectX12 (11_0)N/A
Shader Model5.1N/A
OpenGL4.6N/A
OpenCL1.23.0
Vulkan1.1.126N/A
CUDA3.08.0

Pros & cons summary


Recency 5 June 2012 1 September 2021
Maximum RAM amount 2 GB 16 GB
Chip lithography 28 nm 7 nm
Power consumption (TDP) 65 Watt 250 Watt

GT 640 has 284.6% lower power consumption.

CMP 170HX, on the other hand, has an age advantage of 9 years, a 700% higher maximum VRAM amount, and a 300% more advanced lithography process.

We couldn't decide between GeForce GT 640 and CMP 170HX. We've got no test results to judge.

Be aware that GeForce GT 640 is a desktop card while CMP 170HX is a workstation one.


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 640
GeForce GT 640
NVIDIA CMP 170HX
CMP 170HX

Comparisons with similar GPUs

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Community ratings

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3.4 1544 votes

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4 17 votes

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Questions & comments

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