Your Graphics Research
Your Graphics Research
| Recommended System Requirements | ||
|---|---|---|
| Game | Radeon R7 7670K | GeForce GT 640 |
| Cyberpunk 2077 | 629% | 653% |
| Hitman 3 | 848% | 880% |
| Assassins Creed: Valhalla | 567% | 589% |
| Call of Duty: Black Ops Cold War | 545% | 567% |
| FIFA 21 | 268% | 280% |
| Grand Theft Auto VI | 926% | 960% |
| Far Cry 6 | 955% | 990% |
| Genshin Impact | 629% | 653% |
| World of Warcraft: Shadowlands | 945% | 980% |
| Battlefield 6 | 848% | 880% |
In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R7 7670K are marginally better than the Nvidia GeForce GT 640.
The GeForce GT 640 has a 145 MHz higher core clock speed and 8 more Texture Mapping Units than the Radeon R7 7670K. This results in the GeForce GT 640 providing 10.7 GTexel/s better texturing performance. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.
The GeForce GT 640 has a 145 MHz higher core clock speed and 8 more Render Output Units than the Radeon R7 7670K. This results in the GeForce GT 640 providing 8.3 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.
The Radeon R7 7670K was released over three years more recently than the GeForce GT 640, and so the Radeon R7 7670K is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the GeForce GT 640 when running the latest games.
The GeForce GT 640 has 2048 MB video memory, but the Radeon R7 7670K does not have an entry, so the two GPUs cannot be reliably compared in this area.
Both the Radeon R7 7670K and the GeForce GT 640 have 384 Shader Processing Units. While the two GPUs have the same number of SPUs, the actual performance delivered by the GeForce GT 640 is 346 and by the Radeon R7 7670K is 346. Knowing that the shader performance of the GeForce GT 640 is superior, it is not necessary to examine the GPUs' respective Texture and Pixel Fill Rates.
The Radeon R7 7670K requires 95 Watts to run and the GeForce GT 640 requires 65 Watts. We would recommend a PSU with at least 300 Watts for the Radeon R7 7670K and a PSU with at least 350 Watts for the GeForce GT 640. The Radeon R7 7670K requires 30 Watts more than the GeForce GT 640 to run. The difference is not significant enough for the Radeon R7 7670K to have a noticeably larger impact on your yearly electricity bills than the GeForce GT 640.
| Core Speed | 757 MHz | vs |  | 902 MHz | |
|---|---|---|---|---|---|
| Boost Clock | - | vs | - | ||
| Architecture | GCN 1.1 Godavari-KV-A1 | Kepler GK107-300-A2 | |||
| OC Potential | None | vs |
| Fair | |
| Driver Support | Good | vs | Good | ||
| Release Date | 20 Jul 2015 | | vs | 05 Jun 2012 | |
| GPU Link | GD Link | GD Link | |||
| Approved | | | |||
| Comparison | |||||
| 1366x768 | 6.7
|
|
vs | 6.6
|
|
|---|---|---|---|---|---|
| 1600x900 | 5.2
|
|
vs | 5.1
|
|
| 1920x1080 | 3.6
|
|
vs | 3.5
|
|
| 2560x1440 | 2.5
|
|
vs | |
2.5
|
| 3840x2160 | 1.7
|
|
vs | |
1.7
|
| Memory | N/A | vs | | 2048 MB | |
|---|---|---|---|---|---|
| Memory Speed | 1067 MHz | | vs | 891 MHz | |
| Memory Bus | 128 Bit | | vs | | 128 Bit |
| Memory Type | DDR3 | | vs | | DDR3 |
| Memory Bandwidth | 34.1GB/sec | | vs | 28.5GB/sec | |
| L2 Cache | 4096 KB | |
vs | 256 KB | |
| Delta Color Compression | no | vs | no | ||
| Memory Performance | 0% | |
vs | |
0% |
| Comparison | |||||
| Shader Processing Units | 384 | | vs | | 384 |
|---|---|---|---|---|---|
| Actual Shader Performance | 12% | vs | | 17% | |
| Technology | 28nm | | vs | | 28nm |
| Texture Mapping Units | 24 | vs | | 32 | |
| Texture Rate | 18.2 GTexel/s | vs | | 28.9 GTexel/s | |
| Render Output Units | 8 | vs | | 16 | |
| Pixel Rate | 6.1 GPixel/s | vs | | 14.4 GPixel/s | |
| Comparison | |||||
| Max Digital Resolution (WxH) | 4096x2160 | | vs | | 4096x2160 |
|---|---|---|---|---|---|
| VGA Connections | 0 | vs | | 1 | |
| DVI Connections | 0 | vs | | 1 | |
| HDMI Connections | 0 | vs | | 1 | |
| DisplayPort Connections | 0 | vs | - | ||
| Comparison | |||||
| Max Power | 95 Watts | vs | | 65 Watts | |
|---|---|---|---|---|---|
| Recommended PSU | 300 Watts & 20 Amps | | vs | 350 Watts & 26 Amps | |
| DirectX | 12.0 | | vs | | 12.0 |
|---|---|---|---|---|---|
| Shader Model | 5.0 | | vs | | 5.0 |
| Open GL | 4.4 | vs | | 4.5 | |
| Open CL | - | vs | - | ||
| Notebook GPU | no | no | |||
| SLI/Crossfire | no | vs | no | ||
| Dedicated | no | vs | | yes | |
| Comparison | |||||
| Recommended Processor | AMD APU A8-7670K Quad-Core | vs | | Intel Core i3-3220 3.3GHz | |
|---|---|---|---|---|---|
| Recommended RAM | 4 GB | | vs | 8 GB | |
| Maximum Recommended Gaming Resolution | 1366x768 | | vs | | 1366x768 |
| Performance Value |  | ||||
|---|---|---|---|---|---|
| Mini Review | Overview Radeon R7 7670K is an Integrated Graphics Card in the APU A8-7670K Quad-Core . Architecture The GCN Kaveri GPU is in every way similar to the Cape Verde GPU with the support for DirectX 11.2. GPU It equips a GPU Codenamed Godavari-KV-A1 which offers 384 Shader Processing Units, 24 TMUs and 8 ROPs. The Central Unit Initially Runs at 757MHz. Memory The GPU Shares the System's RAM which varies with each system. Typically, the GPU reserves 1GB. Depending on whether or not the system's RAM is Dual-Channeled, it can access either a 64-bit or 128-bit memory interface. The operating memory clock also depends on the at which speed the System's RAM is running and is limited by the highest operating speed that the Processor supports. In this case, it is 1067MHz. It is then obvious the Memory Bandwidth depends on a lot of factors and thus this Graphics Card performance may vary heavily from system to system. Performance Gaming benchmarks put its performance almost on level with a dedicated GeForce GT 745M. System Suggestions We recommend 4GB of RAM for a system with Radeon R7 7670K. | Overview GeForce GT 640 is a Middle-Class Graphics Card based on the first revision of the Kepler Architecture. Architecture The Kepler Architecture was NVIDIA's big step to power efficiency. Each Stream Multiprocessor (SMX) now hosts 192 Shader Processing Units - against the 48 of older Fermi Architecture, and has been redesigned being now clocked at the same speed of the Central Unit. This means they are more energy efficient and will consequently lead to cooler operating temperatures. However, it also means they are weaker. It can be said that one Fermi SMX is as fast as 2 Kepler SMXs. Additionally, and not available in all GPUs, Kepler also introduced the Boost Clock Feature. The Boost Clock is an even higher Clock Speed activated when in gaming mode and becomes the effective speed of the GPU. GPU It equips a GPU Codenamed GK107-300-A2 which has 2 Stream Multiprocessor activated and thus offers 384 Shader Processing Units, 32 TMUs and 16 ROPs. The Central Unit is clocked at 902MHz. Memory The GPU accesses a 2GB frame buffer of DDR3, through a 128-bit memory interface. The size of the frame buffer is exaggerated and in no way benefits the GPU. The Memory Clock Operates at 891MHz. Features DirectX 11.0 Support (11.0 Hardware Default) and support for Optimus, CUDA, OpenCL, DirectCompute, 3D Vision Surround, PhysX, Realtime Raytracing and other technologies Power Consumption With a rated board TDP of 65W, it requires at least a 350W PSU and it relies entirely on the PCI Slot for power, meaning no extra connectors are required. Performance Gaming benchmarks put its performance on average with Radeon HD 6670. System Suggestions We recommend a Modest Processor (Intel Core i3) and 8GB of RAM for a system with GeForce GT 640. | |||
|---|---|---|---|---|---|
| Recommended CPU | |||||
|---|---|---|---|---|---|
| Possible GPU Upgrades | N/A | N/A | |||
| GPU Variants | - | ||||