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GPU Comparison
ATI Radeon HD 4890 vs AMD Radeon HD 7970
ATI Radeon HD 4890 vs AMD Radeon HD 7970
VS
ATI Radeon HD 4890
AMD Radeon HD 7970
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4890 and 3GB VRAM Radeon HD 7970 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
ATI Radeon HD 4890 's Advantages
Lower TDP (190W vs 250W)
AMD Radeon HD 7970 's Advantages
Released 2 years and 8 months late
More VRAM (3GB vs 1GB)
Larger VRAM bandwidth (264.0GB/s vs 124.8GB/s)
1248 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 4890
1.36 TFLOPS
Radeon HD 7970
+178%
3.789 TFLOPS
Radeon HD 4890
VS
Radeon HD 7970
Graphics Card
Apr 2009
Release Date
Dec 2011
Radeon R700
Generation
Southern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
975 MHz
Memory Clock
1375 MHz
Memory
1024MB
Memory Size
3GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
384bit
124.8GB/s
Bandwidth
264.0GB/s
Render Config
-
SM Count
-
10
Compute Units
32
800
Shading Units
2048
40
TMUs
128
16
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
768 KB
Theoretical Performance
13.60 GPixel/s
Pixel Rate
29.60 GPixel/s
34.00 GTexel/s
Texture Rate
118.4 GTexel/s
-
FP16 (half)
-
1360 GFLOPS
FP32 (float)
3.789 TFLOPS
272.0 GFLOPS
FP64 (double)
947.2 GFLOPS
Graphics Processor
RV790
GPU Name
Tahiti
RV790 XT (215-0758016)
GPU Variant
Tahiti XT (215-0821060)
TeraScale
Architecture
GCN 1.0
TSMC
Foundry
TSMC
55 nm
Process Size
28 nm
0.959 billion
Transistors
4.313 billion
282 mm²
Die Size
352 mm²
Board Design
190W
TDP
250W
450 W
Suggested PSU
600 W
2x DVI 1x S-Video
Outputs
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
2x 6-pin
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Features
10.1 (10_1)
DirectX
12 (11_1)
3.3
OpenGL
4.6
1.1
OpenCL
1.2
N/A
Vulkan
1.2
-
CUDA
-
4.1
Shader Model
5.1
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