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GPU Comparison
AMD Radeon R9 280X2 vs ATI Radeon HD 4750
AMD Radeon R9 280X2 vs ATI Radeon HD 4750
VS
AMD Radeon R9 280X2
ATI Radeon HD 4750
We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280X2 and 512MB VRAM Radeon HD 4750 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 280X2 's Advantages
Boost Clock1000MHz
More VRAM (3GB vs 512GB)
Larger VRAM bandwidth (288.0GB/s vs 51.20GB/s)
1408 additional rendering cores
ATI Radeon HD 4750 's Advantages
Lower TDP (100W vs 375W)
Score
Benchmark
FP32 (float)
Radeon R9 280X2
+338%
4.096 TFLOPS
Radeon HD 4750
0.934 TFLOPS
Radeon R9 280X2
VS
Radeon HD 4750
Graphics Card
Unknown
Release Date
Sep 2009
Volcanic Islands
Generation
Radeon R700
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
950 MHz
Base Clock
-
1000 MHz
Boost Clock
-
1500 MHz
Memory Clock
800 MHz
Memory
3GB
Memory Size
512MB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
128bit
288.0GB/s
Bandwidth
51.20GB/s
Render Config
32
Compute Units
8
-
-
-
2048
Shading Units
640
128
TMUs
32
32
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
768 KB
L2 Cache
128 KB
-
-
-
Theoretical Performance
32.00 GPixel/s
Pixel Rate
11.68 GPixel/s
128.0 GTexel/s
Texture Rate
23.36 GTexel/s
-
-
-
4.096 TFLOPS
FP32 (float)
934.4 GFLOPS
1024 GFLOPS
FP64 (double)
186.9 GFLOPS
Board Design
375W
TDP
100W
750 W
Suggested PSU
300 W
6x mini-DisplayPort 1.2
Outputs
2x DVI 1x S-Video
3x 8-pin
Power Connectors
1x 6-pin
Graphics Processor
Tahiti
GPU Name
RV740
Tahiti XTL (215-0821065)
GPU Variant
RV740 PRO
GCN 1.0
Architecture
TeraScale
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
4.313 billion
Transistors
0.826 billion
352 mm²
Die Size
137 mm²
Graphics Features
12 (11_1)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
1.2
OpenCL
1.1
1.2
Vulkan
N/A
-
-
-
5.1
Shader Model
4.1
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