Radeon RX Vega 64 Liquid Cooling vs GeForce GT 640 Rev. 2

GT 610 GT 610 PCI GT 620 GT 625 OEM GT 630 GT 630 OEM GT 635 OEM GT 640 GT 640 OEM GT 640 OEM Rebrand GT 640 Rev. 2 GT 645 OEM
VS
Radeon RX Vega 11 Radeon RX Vega 56 Radeon RX Vega 64 Radeon RX Vega 64 Limited Edition Radeon RX Vega 64 Liquid Radeon RX Vega 64 Liquid Cooling Radeon RX Vega 64 Liquid Limited Edition Radeon RX Vega 64 Nano

Contents

GT 640 Rev. 2 GT 640 Rev. 2
RX Vega 64 Liquid Cooling RX Vega 64 Liquid Cooling

Primary details

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

Place in the ranking722not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.19no data
Power efficiency5.05no data
ArchitectureKepler 2.0 (2013−2015)GCN 5.0 (2017−2020)
GPU code nameGK208Vega 10
Market segmentDesktopDesktop
Release date29 May 2013 (11 years ago)7 August 2017 (7 years ago)
Launch price (MSRP)$89 $699

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 cores3844096
Core clock speed1046 MHz1408 MHz
Boost clock speedno data1668 MHz
Number of transistors915 million12,500 million
Manufacturing process technology28 nm14 nm
Power consumption (TDP)49 Watt345 Watt
Texture fill rate33.47427.0
Floating-point processing power0.8033 TFLOPS13.66 TFLOPS
ROPs864
TMUs32256

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 2.0 x8PCIe 3.0 x16
Length145 mm282 mm
Width1-slot2-slot
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 typeGDDR5HBM2
Maximum RAM amount1 GB8 GB
Memory bus width64 Bit2048 Bit
Memory clock speed1252 MHz945 MHz
Memory bandwidth40.06 GB/s483.8 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 Connectors1x DVI, 1x HDMI, 1x VGA1x HDMI, 3x DisplayPort
HDMI++

API compatibility

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

DirectX12 (11_0)12 (12_1)
Shader Model5.16.4
OpenGL4.64.6
OpenCL1.22.0
Vulkan1.1.1261.1.125
CUDA3.5-

Pros & cons summary

Recency 29 May 2013 7 August 2017
Maximum RAM amount 1 GB 8 GB
Chip lithography 28 nm 14 nm
Power consumption (TDP) 49 Watt 345 Watt

GT 640 Rev. 2 has 604.1% lower power consumption.

RX Vega 64 Liquid Cooling, on the other hand, has an age advantage of 4 years, a 700% higher maximum VRAM amount, and a 100% more advanced lithography process.

We couldn't decide between GeForce GT 640 Rev. 2 and Radeon RX Vega 64 Liquid Cooling. We've got no test results to judge.

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

Vote for your favorite

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

NVIDIA GeForce GT 640 Rev. 2
GeForce GT 640 Rev. 2
AMD Radeon RX Vega 64 Liquid Cooling
Radeon RX Vega 64 Liquid Cooling
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Comparisons with similar GPUs

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Community ratings

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

3.9 26 votes

Rate GeForce GT 640 Rev. 2 on a scale of 1 to 5:

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4.5 22 votes

Rate Radeon RX Vega 64 Liquid Cooling on a scale of 1 to 5:

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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.