ATI Radeon X800 XT vs GeForce GT 640 Rev. 2

VS

Aggregate performance score

We've compared GeForce GT 640 Rev. 2 and Radeon X800 XT, covering specs and all relevant benchmarks.

GT 640 Rev. 2
2013
1 GB GDDR5, 49 Watt
3.55
+1320%

GT 640 Rev. 2 outperforms ATI X800 XT by a whopping 1320% based on our aggregate benchmark results.

Primary details

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

Place in the ranking7241360
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.19no data
Power efficiency4.970.32
ArchitectureKepler 2.0 (2013−2015)R400 (2004−2008)
GPU code nameGK208R423
Market segmentDesktopDesktop
Release date29 May 2013 (11 years ago)1 December 2004 (20 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 MHz500 MHz
Number of transistors915 million160 million
Manufacturing process technology28 nm130 nm
Power consumption (TDP)49 Watt54 Watt
Texture fill rate33.478.000
Floating-point processing power0.8033 TFLOPSno data
ROPs816
TMUs3216

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 connectorsNone1x 6-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 typeGDDR5GDDR3
Maximum RAM amount1 GB256 MB
Memory bus width64 Bit256 Bit
Memory clock speed1252 MHz500 MHz
Memory bandwidth40.06 GB/s32 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)9.0b (9_2)
Shader Model5.1no data
OpenGL4.62.0
OpenCL1.2N/A
Vulkan1.1.126N/A
CUDA3.5-

Gaming performance

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

Pros & cons summary


Performance score 3.55 0.25
Recency 29 May 2013 1 December 2004
Maximum RAM amount 1 GB 256 MB
Chip lithography 28 nm 130 nm
Power consumption (TDP) 49 Watt 54 Watt

GT 640 Rev. 2 has a 1320% higher aggregate performance score, an age advantage of 8 years, a 300% higher maximum VRAM amount, a 364.3% more advanced lithography process, and 10.2% lower power consumption.

The GeForce GT 640 Rev. 2 is our recommended choice as it beats the Radeon X800 XT in performance tests.


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 X800 XT
Radeon X800 XT

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Community ratings

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3.9 27 votes

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4.2 15 votes

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Questions & comments

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