AMD Radeon HD 7770M vs AMD Radeon HD 7870M
Comparative analysis of AMD Radeon HD 7770M and AMD Radeon HD 7870M videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory. Benchmark videocards performance analysis: PassMark - G3D Mark, PassMark - G2D Mark, GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps).
Differences
Reasons to consider the AMD Radeon HD 7770M
- Around 41% lower typical power consumption: 32 Watt vs 45 Watt
Thermal Design Power (TDP) | 32 Watt vs 45 Watt |
Reasons to consider the AMD Radeon HD 7870M
- Around 19% higher core clock speed: 800 MHz vs 675 MHz
- Around 48% higher texture fill rate: 32 GTexel / s vs 21.6 GTexel / s
- Around 25% higher pipelines: 640 vs 512
- Around 48% better floating-point performance: 1,024 gflops vs 691.2 gflops
- 2x more maximum memory size: 2 GB vs 1 GB
Core clock speed | 800 MHz vs 675 MHz |
Texture fill rate | 32 GTexel / s vs 21.6 GTexel / s |
Pipelines | 640 vs 512 |
Floating-point performance | 1,024 gflops vs 691.2 gflops |
Maximum memory size | 2 GB vs 1 GB |
Compare benchmarks
GPU 1: AMD Radeon HD 7770M
GPU 2: AMD Radeon HD 7870M
Name | AMD Radeon HD 7770M | AMD Radeon HD 7870M |
---|---|---|
PassMark - G3D Mark | 1507 | |
PassMark - G2D Mark | 556 | |
GFXBench 4.0 - Manhattan (Frames) | 1367 | |
GFXBench 4.0 - Manhattan (Fps) | 1367 | |
GFXBench 4.0 - T-Rex (Frames) | 3359 | |
GFXBench 4.0 - T-Rex (Fps) | 3359 |
Compare specifications (specs)
AMD Radeon HD 7770M | AMD Radeon HD 7870M | |
---|---|---|
Essentials |
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Architecture | GCN 1.0 | GCN 1.0 |
Code name | Chelsea | Heathrow |
Launch date | 24 April 2012 | 24 April 2012 |
Place in performance rating | not rated | 577 |
Type | Laptop | Laptop |
Technical info |
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Core clock speed | 675 MHz | 800 MHz |
Floating-point performance | 691.2 gflops | 1,024 gflops |
Manufacturing process technology | 28 nm | 28 nm |
Pipelines | 512 | 640 |
Texture fill rate | 21.6 GTexel / s | 32 GTexel / s |
Thermal Design Power (TDP) | 32 Watt | 45 Watt |
Transistor count | 1,500 million | 1,500 million |
Video outputs and ports |
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Display Connectors | No outputs | No outputs |
Compatibility, dimensions and requirements |
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Interface | PCIe 2.0 x16 | PCIe 3.0 x16 |
Laptop size | medium sized | large |
API support |
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DirectX | 12.0 (11_1) | 12.0 (11_1) |
OpenGL | 4.5 | 4.5 |
Memory |
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Maximum RAM amount | 1 GB | 2 GB |
Memory bandwidth | 64 GB / s | 64 GB / s |
Memory bus width | 128 Bit | 128 Bit |
Memory clock speed | 4000 MHz | 4000 MHz |
Memory type | GDDR5 | GDDR5 |
Shared memory | 0 | 0 |