ATI Graphics Xpression ISA vs GeForce GT 640 Rev. 2

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610 610 OEM 610 PCI 610 PCIe x1 620 620 OEM 625 OEM 630 630 OEM 630 Rev. 2 630 Rev. 2 PCIe x8 635 OEM 640 640 OEM 640 OEM Rebrand 640 Rev. 2 645 OEM
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Pro Turbo Xpression Xpression ISA Video Xpression Video Xpression+ WinBoost WinCharger WinTurbo

Contents

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GT 640 Rev. 2 GT 640 Rev. 2
ATI Graphics Xpression ISA Graphics Xpression ISA

Primary details

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

Place in the ranking784not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.19no data
Power efficiency5.16no data
ArchitectureKepler 2.0 (2013−2015)Mach (1992−1997)
GPU code nameGK208Mach64
Market segmentDesktopDesktop
Release date29 May 2013 (12 years ago)1995 (30 years ago)
Launch price (MSRP)$89 $249

Cost-effectiveness evaluation

The higher the ratio, the better. We use the manufacturer's recommended prices.

no data

Performance to price scatter graph

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 MHz40 MHz
Number of transistors915 million1 million
Manufacturing process technology28 nm600 nm
Power consumption (TDP)49 Wattno data
Texture fill rate33.47no data
Floating-point processing power0.8033 TFLOPSno data
ROPs81
TMUs32no data
L1 Cache32 KBno data
L2 Cache128 KBno data

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 x8PCI
Length145 mmno data
Width1-slot1-slot
Supplementary power connectorsNoneno data

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 typeGDDR5DRAM
Maximum RAM amount1 GB2 MB
Memory bus width64 Bit64 Bit
Memory clock speed1252 MHz40 MHz
Memory bandwidth40.06 GB/s320.0 MB/s

Connectivity and outputs

This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.

Display Connectors1x DVI, 1x HDMI, 1x VGA1x VGA
HDMI+-

API and SDK support

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

DirectX12 (11_0)N/A
Shader Model5.1no data
OpenGL4.6N/A
OpenCL1.2N/A
Vulkan1.1.126N/A
CUDA3.5-

Pros & cons summary

Maximum RAM amount 1 GB 2 MB
Chip lithography 28 nm 600 nm

GT 640 Rev. 2 has a 51100% higher maximum VRAM amount, and a 2042.9% more advanced lithography process.

We couldn't decide between GeForce GT 640 Rev. 2 and Graphics Xpression ISA. We've got no test results to judge.

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
ATI Graphics Xpression ISA
Graphics Xpression ISA
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Other comparisons

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Community ratings

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

3.7 34 votes

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

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5 1 vote

Rate Graphics Xpression ISA on a scale of 1 to 5:

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Comments

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