ATI Radeon X1600 XT vs GeForce GT 640 Rev. 2

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Primary details

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

Place in the ranking717not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.19no data
Power efficiency5.02no data
ArchitectureKepler 2.0 (2013−2015)R500 (2005−2007)
GPU code nameGK208RV530
Market segmentDesktopDesktop
Release date29 May 2013 (11 years ago)1 October 2007 (17 years ago)
Launch price (MSRP)$89 no data

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 cores384no data
Core clock speed1046 MHz590 MHz
Number of transistors915 million157 million
Manufacturing process technology28 nm90 nm
Power consumption (TDP)49 Watt42 Watt
Texture fill rate33.472.360
Floating-point processing power0.8033 TFLOPSno data
ROPs84
TMUs324

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 1.0 x16
Length145 mmno data
Width1-slot1-slot
Supplementary power connectorsNoneNone

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 typeGDDR5GDDR3
Maximum RAM amount1 GB256 MB
Memory bus width64 Bit128 Bit
Memory clock speed1252 MHz690 MHz
Memory bandwidth40.06 GB/s22.08 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 DVI, 1x VGA, 1x S-Video
HDMI+-

API compatibility

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

DirectX12 (11_0)9.0c (9_3)
Shader Model5.13.0
OpenGL4.62.0
OpenCL1.2N/A
Vulkan1.1.126N/A
CUDA3.5-

Pros & cons summary


Recency 29 May 2013 1 October 2007
Maximum RAM amount 1 GB 256 MB
Chip lithography 28 nm 90 nm
Power consumption (TDP) 49 Watt 42 Watt

GT 640 Rev. 2 has an age advantage of 5 years, a 300% higher maximum VRAM amount, and a 221.4% more advanced lithography process.

ATI X1600 XT, on the other hand, has 16.7% lower power consumption.

We couldn't decide between GeForce GT 640 Rev. 2 and Radeon X1600 XT. 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.

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NVIDIA GeForce GT 640 Rev. 2
GeForce GT 640 Rev. 2
ATI Radeon X1600 XT
Radeon X1600 XT

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Community ratings

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3.9 26 votes

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2.9 41 vote

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Questions & comments

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