Iris Plus Graphics 640 vs GeForce GTX 275
Aggregate performance score
Iris Plus Graphics 640 outperforms GeForce GTX 275 by a small 5% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | 676 | 666 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.35 | 0.72 |
| Architecture | Tesla 2.0 (2007−2013) | Gen. 9.5 Kaby Lake (2015−2017) |
| GPU code name | GT200B | Kaby Lake GT3e |
| Market segment | Desktop | Laptop |
| Release date | 15 January 2009 (15 years ago) | 3 January 2017 (7 years ago) |
| Launch price (MSRP) | $249 | no data |
| Current price | $82 (0.3x MSRP) | $669 |
Cost-effectiveness evaluation
Performance to price ratio. The higher, the better.
Iris Plus Graphics 640 has 106% better value for money than GTX 275.
Detailed specifications
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 cores | 240 | 48 |
| CUDA cores | 240 | no data |
| Core clock speed | 633 MHz | 300 MHz |
| Boost clock speed | no data | 1050 MHz |
| Number of transistors | 1,400 million | 189 million |
| Manufacturing process technology | 55 nm | 14 nm |
| Power consumption (TDP) | 219 Watt | 15 Watt |
| Maximum GPU temperature | 105 °C | no data |
| Texture fill rate | 50.6 billion/sec | 52.80 |
| Floating-point performance | 673.9 gflops | no data |
Form factor & compatibility
Information on GeForce GTX 275 and Iris Plus Graphics 640 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.
| Bus support | PCI-E 2.0 | no data |
| Interface | PCIe 2.0 x16 | PCIe 3.0 x1 |
| Length | 10.5" (267 mm) (26.7 cm) | no data |
| Height | 4.376" (111 mm) (11.1 cm) | no data |
| Width | 2-slot | no data |
| Supplementary power connectors | 2x 6-pin | no data |
| SLI options | + | no data |
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 type | GDDR3 | DDR3L/LPDDR3/DDR4 |
| Maximum RAM amount | 896 MB | 32 GB |
| Memory bus width | 448 Bit | 64/128 Bit |
| Memory clock speed | 1134 MHz | System Shared |
| Memory bandwidth | 127.0 GB/s | no data |
| Shared memory | no data | + |
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 Connectors | Two Dual Link DVI | No outputs |
| Multi monitor support | + | no data |
| Maximum VGA resolution | 2048x1536 | no data |
| Audio input for HDMI | S/PDIF | no data |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| Quick Sync | no data | + |
API compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | 11.1 (10_0) | 12 (12_1) |
| Shader Model | 4.0 | 6.4 |
| OpenGL | 3.0 | 4.6 |
| OpenCL | 1.1 | 2.1 |
| Vulkan | N/A | 1.1.103 |
| CUDA | + | no 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.
Iris Plus Graphics 640 outperforms GeForce GTX 275 by 5% based on our aggregate 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%
Iris Plus Graphics 640 outperforms GeForce GTX 275 by 5% in Passmark.
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 HD | 21−24
−14.3%
| 24
+14.3%
|
Pros & cons summary
| Performance score | 3.66 | 3.85 |
| Recency | 15 January 2009 | 3 January 2017 |
| Maximum RAM amount | 896 MB | 32 GB |
| Chip lithography | 55 nm | 14 nm |
| Power consumption (TDP) | 219 Watt | 15 Watt |
Given the minimal performance differences, no clear winner can be declared between GeForce GTX 275 and Iris Plus Graphics 640.
Be aware that GeForce GTX 275 is a desktop card while Iris Plus Graphics 640 is a notebook one.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with similar GPUs
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
