ATI Radeon HD 4870 X2 vs NVIDIA GeForce GT 640

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Combined performance score

GT 640
3.04

Radeon HD 4870 X2 outperforms GeForce GT 640 by 11% in our combined benchmark results.

General info

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

Place in performance ranking726691
Place by popularitynot in top-100not in top-100
Value for money0.190.19
ArchitectureKepler (2012−2018)TeraScale (2005−2013)
GPU code nameGK107R700
Market segmentDesktopDesktop
Release date5 June 2012 (11 years old)12 August 2008 (15 years old)
Launch price (MSRP)$99 $550
Current price$157 (1.6x MSRP)$202 (0.4x MSRP)
Value for money

Performance to price ratio. The higher, the better.

GT 640 and ATI HD 4870 X2 have a nearly equal value for money.

Technical specs

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores384800
Core clock speed902 MHz700 MHz
Number of transistors1,270 million956 million
Manufacturing process technology28 nm55 nm
Power consumption (TDP)65 Watt286 Watt
Texture fill rate28.8628.00
Floating-point performance692.7 gflops2x 1,120.0 gflops

Size and 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 3.0 x16PCIe 2.0 x16
Length145 mm267 mm
Width1-slot2-slot
Supplementary power connectorsNone1x 6-pin + 1x 8-pin

Memory

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 typeDDR3GDDR5
Maximum RAM amount2 GB1 GB
Memory bus width128 Bit256 Bit
Memory clock speed1782 MHz3600 MHz
Memory bandwidth28.51 GB/s115.2 GB/s

Video outputs and ports

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 DisplayPort2x DVI, 1x S-Video
HDMI+no data

API support

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

DirectX12 (11_0)10.1 (10_1)
Shader Model5.14.1
OpenGL4.63.3
OpenCL1.21.1
Vulkan1.1.126N/A
CUDA3.0no data

Synthetic benchmark performance

Non-gaming benchmark performance comparison. The combined score is measured on a 0-100 point scale.


Combined synthetic benchmark score

This is our combined benchmark performance score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

GT 640 3.04
ATI HD 4870 X2 3.38
+11.2%

Radeon HD 4870 X2 outperforms GeForce GT 640 by 11% in our combined benchmark results.


Passmark

This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

Benchmark coverage: 25%

GT 640 1178
ATI HD 4870 X2 1309
+11.1%

Radeon HD 4870 X2 outperforms GeForce GT 640 by 11% in Passmark.

Gaming performance

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

Advantages and disadvantages


Performance score 3.04 3.38
Recency 5 June 2012 12 August 2008
Cost $99 $550
Maximum RAM amount 2 GB 1 GB
Chip lithography 28 nm 55 nm
Power consumption (TDP) 65 Watt 286 Watt

The Radeon HD 4870 X2 is our recommended choice as it beats the GeForce GT 640 in performance tests.


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

User ratings

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
GeForce GT 640
ATI Radeon HD 4870 X2
Radeon HD 4870 X2

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User ratings: view and submit

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3.4 1345 votes

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Questions and comments

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