Radeon RX 640 vs GeForce GTX 675MX

VS

Aggregate performance score

We've compared GeForce GTX 675MX and Radeon RX 640, covering specs and all relevant benchmarks.

GTX 675MX
2012
2 GB GDDR5, 100 Watt
7.05
+32.5%

GTX 675MX outperforms RX 640 by a substantial 33% based on our aggregate benchmark results.

Primary details

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

Place in the ranking553616
Place by popularitynot in top-100not in top-100
Power efficiency4.837.29
ArchitectureKepler (2012−2018)GCN 4.0 (2016−2020)
GPU code nameGK104Polaris 23
Market segmentLaptopLaptop
Release date1 October 2012 (12 years ago)13 May 2019 (5 years ago)

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 cores960640
Core clock speed600 MHz1082 MHz
Boost clock speedno data1218 MHz
Number of transistors3,540 million2,200 million
Manufacturing process technology28 nm14 nm
Power consumption (TDP)100 Watt50 Watt
Texture fill rate52.3248.72
Floating-point processing power1.256 TFLOPS1.559 TFLOPS
ROPs3216
TMUs8040

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).

Laptop sizelargelarge
Bus supportPCI Express 2.0no data
InterfaceMXM-B (3.0)PCIe 3.0 x8
Supplementary power connectorsNoneNone
SLI options+-

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 amount2 GB2 GB
Memory bus width256 Bit64 Bit
Memory clock speed1800 MHz1500 MHz
Memory bandwidth115.2 GB/s48 GB/s
Shared memory--

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 outputsNo outputs
HDMI+-
HDCP+-
Maximum VGA resolutionUp to 2048x1536no data

Supported technologies

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

FreeSync-+
Optimus+-

API compatibility

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

DirectX12 API12 (12_0)
Shader Model5.16.4
OpenGL4.54.6
OpenCL1.12.0
Vulkan1.1.1261.2.131
CUDA+-

Synthetic benchmark performance

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


Combined synthetic benchmark score

This is our combined benchmark 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.

GTX 675MX 7.05
+32.5%
RX 640 5.32

Passmark

This is the most ubiquitous GPU benchmark. 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.

GTX 675MX 2716
+32.6%
RX 640 2049

3DMark 11 Performance GPU

3DMark 11 is an obsolete DirectX 11 benchmark by Futuremark. It used four tests based on two scenes, one being few submarines exploring the submerged wreck of a sunken ship, the other is an abandoned temple deep in the jungle. All the tests are heavy with volumetric lighting and tessellation, and despite being done in 1280x720 resolution, are relatively taxing. Discontinued in January 2020, 3DMark 11 is now superseded by Time Spy.

GTX 675MX 3979
RX 640 5235
+31.6%

3DMark Vantage Performance

3DMark Vantage is an outdated DirectX 10 benchmark using 1280x1024 screen resolution. It taxes the graphics card with two scenes, one depicting a girl escaping some militarized base located within a sea cave, the other displaying a space fleet attack on a defenseless planet. It was discontinued in April 2017, and Time Spy benchmark is now recommended to be used instead.

GTX 675MX 18950
+34%
RX 640 14141

3DMark Fire Strike Graphics

Fire Strike is a DirectX 11 benchmark for gaming PCs. It features two separate tests displaying a fight between a humanoid and a fiery creature made of lava. Using 1920x1080 resolution, Fire Strike shows off some realistic graphics and is quite taxing on hardware.

GTX 675MX 2831
RX 640 3499
+23.6%

3DMark Cloud Gate GPU

Cloud Gate is an outdated DirectX 11 feature level 10 benchmark that was used for home PCs and basic notebooks. It displays a few scenes of some weird space teleportation device launching spaceships into unknown, using fixed resolution of 1280x720. Just like Ice Storm benchmark, it has been discontinued in January 2020 and replaced by 3DMark Night Raid.

GTX 675MX 20325
+1.9%
RX 640 19946

Gaming performance

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

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

Full HD49
+81.5%
27
−81.5%

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077 10−12
+22.2%
9−10
−22.2%

Full HD
Medium Preset

Assassin's Creed Odyssey 16−18
−17.6%
20
+17.6%
Assassin's Creed Valhalla 9−10
+80%
5−6
−80%
Battlefield 5 20−22
+53.8%
12−14
−53.8%
Call of Duty: Modern Warfare 14−16
+27.3%
10−12
−27.3%
Cyberpunk 2077 10−12
+22.2%
9−10
−22.2%
Far Cry 5 14−16
+36.4%
10−12
−36.4%
Far Cry New Dawn 18−20
+35.7%
14−16
−35.7%
Forza Horizon 4 45−50
+40.6%
30−35
−40.6%
Hitman 3 14−16
+27.3%
10−12
−27.3%
Horizon Zero Dawn 40−45
+24.2%
30−35
−24.2%
Metro Exodus 18−20
−42.1%
27
+42.1%
Red Dead Redemption 2 18−20
−36.8%
26
+36.8%
Shadow of the Tomb Raider 21−24
+27.8%
18−20
−27.8%
Watch Dogs: Legion 50−55
+12.8%
45−50
−12.8%

Full HD
High Preset

Assassin's Creed Odyssey 16−18
+21.4%
14−16
−21.4%
Assassin's Creed Valhalla 9−10
+80%
5−6
−80%
Battlefield 5 20−22
+53.8%
12−14
−53.8%
Call of Duty: Modern Warfare 14−16
+27.3%
10−12
−27.3%
Cyberpunk 2077 10−12
+22.2%
9−10
−22.2%
Far Cry 5 14−16
+36.4%
10−12
−36.4%
Far Cry New Dawn 18−20
+35.7%
14−16
−35.7%
Forza Horizon 4 45−50
+40.6%
30−35
−40.6%
Hitman 3 14−16
+27.3%
10−12
−27.3%
Horizon Zero Dawn 40−45
+24.2%
30−35
−24.2%
Metro Exodus 18−20
+90%
10
−90%
Red Dead Redemption 2 18−20
+35.7%
14−16
−35.7%
Shadow of the Tomb Raider 21−24
+27.8%
18−20
−27.8%
The Witcher 3: Wild Hunt 21−24
+16.7%
18−20
−16.7%
Watch Dogs: Legion 50−55
+12.8%
45−50
−12.8%

Full HD
Ultra Preset

Assassin's Creed Odyssey 16−18
+21.4%
14−16
−21.4%
Assassin's Creed Valhalla 9−10
+80%
5−6
−80%
Call of Duty: Modern Warfare 14−16
+27.3%
10−12
−27.3%
Cyberpunk 2077 10−12
+22.2%
9−10
−22.2%
Far Cry 5 14−16
+36.4%
10−12
−36.4%
Forza Horizon 4 45−50
+40.6%
30−35
−40.6%
Hitman 3 14−16
+27.3%
10−12
−27.3%
Horizon Zero Dawn 40−45
+24.2%
30−35
−24.2%
Shadow of the Tomb Raider 21−24
+27.8%
18−20
−27.8%
The Witcher 3: Wild Hunt 21−24
+90.9%
11
−90.9%
Watch Dogs: Legion 50−55
+12.8%
45−50
−12.8%

Full HD
Epic Preset

Red Dead Redemption 2 18−20
+35.7%
14−16
−35.7%

1440p
High Preset

Battlefield 5 12−14
+30%
10−11
−30%
Far Cry New Dawn 10−11
+25%
8−9
−25%

1440p
Ultra Preset

Assassin's Creed Odyssey 6−7
+20%
5−6
−20%
Assassin's Creed Valhalla 2−3 0−1
Call of Duty: Modern Warfare 6−7
+50%
4−5
−50%
Cyberpunk 2077 3−4
+50%
2−3
−50%
Far Cry 5 8−9
+33.3%
6−7
−33.3%
Forza Horizon 4 21−24
+91.7%
12−14
−91.7%
Hitman 3 10−11
+11.1%
9−10
−11.1%
Horizon Zero Dawn 14−16
+36.4%
10−12
−36.4%
Metro Exodus 7−8
+133%
3−4
−133%
Shadow of the Tomb Raider 4−5
+33.3%
3−4
−33.3%
The Witcher 3: Wild Hunt 6−7
+50%
4−5
−50%
Watch Dogs: Legion 40−45
+37.5%
30−35
−37.5%

1440p
Epic Preset

Red Dead Redemption 2 12−14
+33.3%
9−10
−33.3%

4K
High Preset

Battlefield 5 6−7
+50%
4−5
−50%
Far Cry New Dawn 5−6
+66.7%
3−4
−66.7%
Hitman 3 3−4
+200%
1−2
−200%
Horizon Zero Dawn 21−24
+163%
8−9
−163%
Metro Exodus 4−5
+100%
2−3
−100%
The Witcher 3: Wild Hunt 3−4
+200%
1−2
−200%

4K
Ultra Preset

Assassin's Creed Odyssey 4−5
+33.3%
3−4
−33.3%
Assassin's Creed Valhalla 3−4
+50%
2−3
−50%
Call of Duty: Modern Warfare 3−4
+50%
2−3
−50%
Cyberpunk 2077 1−2 0−1
Far Cry 5 3−4
+0%
3−4
+0%
Forza Horizon 4 7−8
+75%
4−5
−75%
Shadow of the Tomb Raider 2−3
+100%
1−2
−100%
Watch Dogs: Legion 2−3
+100%
1−2
−100%

4K
Epic Preset

Red Dead Redemption 2 7−8
+16.7%
6−7
−16.7%

This is how GTX 675MX and RX 640 compete in popular games:

  • GTX 675MX is 81% faster in 1080p

Here's the range of performance differences observed across popular games:

  • in Hitman 3, with 4K resolution and the High Preset, the GTX 675MX is 200% faster.
  • in Metro Exodus, with 1080p resolution and the Medium Preset, the RX 640 is 42% faster.

All in all, in popular games:

  • GTX 675MX is ahead in 64 tests (94%)
  • RX 640 is ahead in 3 tests (4%)
  • there's a draw in 1 test (1%)

Pros & cons summary


Performance score 7.05 5.32
Recency 1 October 2012 13 May 2019
Chip lithography 28 nm 14 nm
Power consumption (TDP) 100 Watt 50 Watt

GTX 675MX has a 32.5% higher aggregate performance score.

RX 640, on the other hand, has an age advantage of 6 years, a 100% more advanced lithography process, and 100% lower power consumption.

The GeForce GTX 675MX is our recommended choice as it beats the Radeon RX 640 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 GTX 675MX
GeForce GTX 675MX
AMD Radeon RX 640
Radeon RX 640

Comparisons with similar GPUs

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

Community ratings

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


4 45 votes

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3.2 257 votes

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Questions & comments

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