GeForce GT 640 Rev. 2 vs Radeon R9 M275X

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Radeon R9 M265X Radeon R9 M270 Radeon R9 M270X Radeon R9 M275 Radeon R9 M275X Radeon R9 M280X Radeon R9 M290X Radeon R9 M290X Crossfire Radeon R9 M290X Mac Edition Radeon R9 M295X Radeon R9 M295X Mac Edition Radeon R9 M360
VS
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

Aggregate performance score

We've compared Radeon R9 M275X with GeForce GT 640 Rev. 2, including specs and performance data.

R9 M275X
2014
4 GB GDDR5
4.19
+18%

R9 M275X outperforms GT 640 Rev. 2 by a moderate 18% based on our aggregate benchmark results.

Contents

R9 M275X R9 M275X
GT 640 Rev. 2 GT 640 Rev. 2

Primary details

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

Place in the ranking680717
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data0.19
Power efficiencyno data5.03
ArchitectureGCN 1.0 (2011−2020)Kepler 2.0 (2013−2015)
GPU code nameVenusGK208
Market segmentLaptopDesktop
Release date28 January 2014 (10 years ago)29 May 2013 (11 years ago)
Launch price (MSRP)no data$89

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 cores640384
Compute units10no data
Core clock speed900 MHz1046 MHz
Boost clock speed925 MHzno data
Number of transistors1,500 million915 million
Manufacturing process technology28 nm28 nm
Power consumption (TDP)no data49 Watt
Texture fill rate37.0033.47
Floating-point processing power1.184 TFLOPS0.8033 TFLOPS
ROPs168
TMUs4032

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).

Bus supportPCIe 3.0 x16no data
InterfacePCIe 3.0 x16PCIe 2.0 x8
Lengthno data145 mm
Widthno data1-slot
Supplementary power connectorsno dataNone

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 typeGDDR5GDDR5
Maximum RAM amount4 GB1 GB
Memory bus width128 Bit64 Bit
Memory clock speed1125 MHz1252 MHz
Memory bandwidth72 GB/s40.06 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 ConnectorsNo outputs1x DVI, 1x HDMI, 1x VGA
Eyefinity+-
HDMI-+

Supported technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

FreeSync+-
HD3D+-
PowerTune+-
DualGraphics+-
ZeroCore+-
Switchable graphics+-

API compatibility

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

DirectXDirectX® 1112 (11_0)
Shader Model5.15.1
OpenGL4.44.6
OpenCLNot Listed1.2
Vulkan-1.1.126
Mantle+-
CUDA-3.5

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 4.19 3.55
Recency 28 January 2014 29 May 2013
Maximum RAM amount 4 GB 1 GB

R9 M275X has a 18% higher aggregate performance score, an age advantage of 7 months, and a 300% higher maximum VRAM amount.

The Radeon R9 M275X is our recommended choice as it beats the GeForce GT 640 Rev. 2 in performance tests.

Be aware that Radeon R9 M275X is a notebook card while GeForce GT 640 Rev. 2 is a desktop one.

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.

AMD Radeon R9 M275X
Radeon R9 M275X
NVIDIA GeForce GT 640 Rev. 2
GeForce GT 640 Rev. 2
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Comparisons with similar GPUs

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

R9 M275X Radeon R9 M275X
vs
GTX 480M GeForce GTX 480M
GT 640 Rev. 2 GeForce GT 640 Rev. 2
vs
ATI HD 4870 Radeon HD 4870
R9 M275X Radeon R9 M275X
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GTX 285M SLI GeForce GTX 285M SLI
GT 640 Rev. 2 GeForce GT 640 Rev. 2
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Radeon E6465 Radeon E6465
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GT 640 Rev. 2 GeForce GT 640 Rev. 2
GT 630 Rev. 2 PCIe x8 GeForce GT 630 Rev. 2 PCIe x8
vs
RX Vega 64 Liquid Cooling Radeon RX Vega 64 Liquid Cooling
GT 630 Rev. 2 PCIe x8 GeForce GT 630 Rev. 2 PCIe x8
vs
R5 M435 Radeon R5 M435
GT 630 Rev. 2 GeForce GT 630 Rev. 2
vs
R7 M270DX Radeon R7 M270DX
Radeon E8860 Radeon E8860
vs
GT 640 Rev. 2 GeForce GT 640 Rev. 2
GT 640 Rev. 2 GeForce GT 640 Rev. 2
vs
ATI HD 4810 Radeon HD 4810
ATI HD 4770 Radeon HD 4770
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GT 640 Rev. 2 GeForce GT 640 Rev. 2
GT 640 Rev. 2 GeForce GT 640 Rev. 2
vs
ATI HD 2400 Radeon HD 2400
GT 640 Rev. 2 GeForce GT 640 Rev. 2
vs
ATI HD 3450 Radeon HD 3450

Community ratings

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

3.7 14 votes

Rate Radeon R9 M275X on a scale of 1 to 5:

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3.9 26 votes

Rate GeForce GT 640 Rev. 2 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.