GeForce GT 745A vs Radeon HD 7870 XT
Aggregate performance score
We've compared Radeon HD 7870 XT with GeForce GT 745A, including specs and performance data.
HD 7870 XT outperforms 745A by a whopping 262% based on our aggregate benchmark results.
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 471 | 815 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 3.16 | no data |
| Power efficiency | 4.44 | 6.87 |
| Architecture | GCN 1.0 (2012−2020) | Kepler (2012−2018) |
| GPU code name | Tahiti | GK107 |
| Market segment | Desktop | Laptop |
| Release date | 19 November 2012 (13 years ago) | 26 August 2013 (12 years ago) |
| Launch price (MSRP) | $270 | no data |
Cost-effectiveness evaluation
The higher the ratio, the better. We use the manufacturer's recommended prices.
Performance to price scatter graph
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 cores | 1536 | 384 |
| Core clock speed | 925 MHz | 837 MHz |
| Boost clock speed | 975 MHz | 915 MHz |
| Number of transistors | 4,313 million | 1,270 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Power consumption (TDP) | 185 Watt | 33 Watt |
| Texture fill rate | 93.60 | 29.28 |
| Floating-point processing power | 2.995 TFLOPS | 0.7027 TFLOPS |
| ROPs | 32 | 16 |
| TMUs | 96 | 32 |
| L1 Cache | 384 KB | 32 KB |
| L2 Cache | 512 KB | 256 KB |
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).
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Length | 267 mm | no data |
| Width | 2-slot | no data |
| Supplementary power connectors | 2x 6-pin | 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 | GDDR5 | DDR3 |
| Maximum RAM amount | 2 GB | 2 GB |
| Memory bus width | 256 Bit | 128 Bit |
| Memory clock speed | 1500 MHz | 900 MHz |
| Memory bandwidth | 192.0 GB/s | 28.8 GB/s |
Connectivity and outputs
This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.
| Display Connectors | 1x DVI, 1x HDMI, 2x mini-DisplayPort | No outputs |
| HDMI | + | - |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_1) | 12 (11_0) |
| Shader Model | 5.1 | 5.1 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | 1.2.131 | 1.1.126 |
| CUDA | - | 3.0 |
Synthetic benchmarks
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.
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.
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 | 10.69 | 2.95 |
| Recency | 19 November 2012 | 26 August 2013 |
| Power consumption (TDP) | 185 Watt | 33 Watt |
HD 7870 XT has a 262.4% higher aggregate performance score.
GT 745A, on the other hand, has an age advantage of 9 months, and 460.6% lower power consumption.
The Radeon HD 7870 XT is our recommended choice as it beats the GeForce GT 745A in performance tests.
Be aware that Radeon HD 7870 XT is a desktop graphics card while GeForce GT 745A is a notebook one.
Other comparisons
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