GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon HD 7970
173%
173%
AMD Radeon HD 7850
65%
65%
AMD Radeon HD 7970 is approximately 108% faster
Technical Specifications
| Specification | AMD Radeon HD 7970 | AMD Radeon HD 7850 |
|---|---|---|
| Graphics ProcessorDifferent | Tahiti | Pitcairn |
| CoresDifferent | 2048 | 1024 |
| TMUsDifferent | 128 | 64 |
| ROPs | 32 | 32 |
| Memory SizeDifferent | 3 GB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 384 bit | 256 bit |
Graphics Processor
| Feature | AMD Radeon HD 7970 | AMD Radeon HD 7850 |
|---|---|---|
| GPU NameDifferent | Tahiti | Pitcairn |
| GPU VariantDifferent | Tahiti XT(215-0821060) | Pitcairn PRO(215-0828062) |
| Architecture | GCN 1.0 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| TransistorsDifferent | 4,313 million | 2,800 million |
| DensityDifferent | 12.3M / mm² | 13.2M / mm² |
| Die SizeDifferent | 352 mm² | 212 mm² |
| Chip PackageDifferent | N/A | FCBGA-1737 |
Graphics Card
| Feature | AMD Radeon HD 7970 | AMD Radeon HD 7850 |
|---|---|---|
| Release DateDifferent | Jan 9th, 2012 | Mar 5th, 2012 |
| AnnouncedDifferent | Dec 22nd, 2011 | N/A |
| GenerationDifferent | Southern Islands(HD 7900) | Southern Islands(HD 7800) |
| Predecessor | Northern Islands | Northern Islands |
| Successor | Sea Islands | Sea Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 549 USD | 249 USD |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 191 in our database | 71 in our database |
Clock Speeds
| Feature | AMD Radeon HD 7970 | AMD Radeon HD 7850 |
|---|---|---|
| GPU ClockDifferent | 925 MHz | 860 MHz |
| Memory ClockDifferent | 1375 MHz5.5 Gbps effective | 1200 MHz4.8 Gbps effective |
Memory
| Feature | AMD Radeon HD 7970 | AMD Radeon HD 7850 |
|---|---|---|
| Memory SizeDifferent | 3 GB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 384 bit | 256 bit |
| BandwidthDifferent | 264.0 GB/s | 153.6 GB/s |
Render Config
| Feature | AMD Radeon HD 7970 | AMD Radeon HD 7850 |
|---|---|---|
| Shading UnitsDifferent | 2048 | 1024 |
| TMUsDifferent | 128 | 64 |
| ROPs | 32 | 32 |
| Compute UnitsDifferent | 32 | 16 |
| L1 Cache | 16 KB (per CU) | 16 KB (per CU) |
| L2 CacheDifferent | 768 KB | 512 KB |
Theoretical Performance
| Feature | AMD Radeon HD 7970 | AMD Radeon HD 7850 |
|---|---|---|
| Pixel RateDifferent | 29.60 GPixel/s | 27.52 GPixel/s |
| Texture RateDifferent | 118.4 GTexel/s | 55.04 GTexel/s |
| FP32 (float)Different | 3.789 TFLOPS | 1.761 TFLOPS |
| FP64 (double)Different | 947.2 GFLOPS (1:4) | 110.1 GFLOPS (1:16) |
Board Design
| Feature | AMD Radeon HD 7970 | AMD Radeon HD 7850 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 275 mm10.8 inches | 210 mm8.3 inches |
| HeightDifferent | 111 mm4.4 inches | N/A |
| WidthDifferent | 38 mm1.5 inches | N/A |
| TDPDifferent | 250 W | 130 W |
| Suggested PSUDifferent | 600 W | 300 W |
| Outputs | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 1x 6-pin + 1x 8-pin | 1x 6-pin |
| Board NumberDifferent | 109-C38637-00 | 109-C40147-00, 109-C40337-00A |
Graphics Features
| Feature | AMD Radeon HD 7970 | AMD Radeon HD 7850 |
|---|---|---|
| DirectX | 12 (11_1) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 (1.2) | 2.1 (1.2) |
| Vulkan | 1.2.170 | 1.2.170 |
| Shader Model | 6.5 (5.1) | 6.5 (5.1) |
Comparison Summary
7
Specifications Compared
8
Feature Categories
48
Detailed Features
More Comparisons with AMD Radeon HD 7970
Compare AMD Radeon HD 7970 with other GPUs of similar performance
AMD Radeon HD 7970 vs Radeon HD 7970 GHz Edition
Radeon HD 7970 GHz Edition Performance113%
Radeon HD 7970 GHz Edition is 13% faster than AMD Radeon HD 7970
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AMD Radeon HD 7970 vs GeForce GTX 590
GeForce GTX 590 Performance113%
GeForce GTX 590 is 13% faster than AMD Radeon HD 7970
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AMD Radeon HD 7970 vs Radeon R9 280X
Radeon R9 280X Performance111%
Radeon R9 280X is 11% faster than AMD Radeon HD 7970
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AMD Radeon HD 7970 vs Radeon HD 6990
Radeon HD 6990 Performance109%
Radeon HD 6990 is 9% faster than AMD Radeon HD 7970
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AMD Radeon HD 7970 vs GeForce GTX 1050 Ti
GeForce GTX 1050 Ti Performance103%
GeForce GTX 1050 Ti is 3% faster than AMD Radeon HD 7970
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AMD Radeon HD 7970 vs GeForce GTX 680
GeForce GTX 680 Performance101%
GeForce GTX 680 is 1% faster than AMD Radeon HD 7970
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More Comparisons with AMD Radeon HD 7850
Compare AMD Radeon HD 7850 with other GPUs of similar performance
AMD Radeon HD 7850 vs GeForce GTX 950
GeForce GTX 950 Performance120%
GeForce GTX 950 is 20% faster than AMD Radeon HD 7850
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AMD Radeon HD 7850 vs Radeon RX 560
Radeon RX 560 Performance113%
Radeon RX 560 is 13% faster than AMD Radeon HD 7850
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AMD Radeon HD 7850 vs GeForce GTX 570
GeForce GTX 570 Performance111%
GeForce GTX 570 is 11% faster than AMD Radeon HD 7850
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AMD Radeon HD 7850 vs GeForce GTX 660
GeForce GTX 660 Performance111%
GeForce GTX 660 is 11% faster than AMD Radeon HD 7850
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AMD Radeon HD 7850 vs Radeon R7 370
Radeon R7 370 Performance110%
Radeon R7 370 is 10% faster than AMD Radeon HD 7850
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AMD Radeon HD 7850 vs Radeon HD 6970
Radeon HD 6970 Performance106%
Radeon HD 6970 is 6% faster than AMD Radeon HD 7850
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