Home GPU Comparison AMD Radeon R7 250X vs AMD Radeon R9 280X

AMD Radeon R7 250X vs AMD Radeon R9 280X

We compared two Desktop platform GPUs: 1024MB VRAM Radeon R7 250X and 3GB VRAM Radeon R9 280X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 250X 's Advantages
Lower TDP (80W vs 250W)
AMD Radeon R9 280X 's Advantages
Boost Clock1000MHz
More VRAM (3GB vs 1024GB)
Larger VRAM bandwidth (288.0GB/s vs 72.00GB/s)
1408 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon R7 250X
1.216 TFLOPS
Radeon R9 280X +236%
4.096 TFLOPS
VS

Graphics Card

Feb 2014
Release Date
Oct 2013
Volcanic Islands
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
Base Clock
850 MHz
-
Boost Clock
1000 MHz
1125 MHz
Memory Clock
1500 MHz

Memory

1024MB
Memory Size
3GB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
384bit
72.00GB/s
Bandwidth
288.0GB/s

Render Config

10
Compute Units
32
-
-
-
640
Shading Units
2048
40
TMUs
128
16
ROPs
32
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
768 KB
-
-
-

Theoretical Performance

15.20 GPixel/s
Pixel Rate
32.00 GPixel/s
38.00 GTexel/s
Texture Rate
128.0 GTexel/s
-
-
-
1216 GFLOPS
FP32 (float)
4.096 TFLOPS
76.00 GFLOPS
FP64 (double)
1024 GFLOPS

Board Design

80W
TDP
250W
250 W
Suggested PSU
600 W
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
1x 6-pin
Power Connectors
1x 6-pin + 1x 8-pin

Graphics Processor

Cape Verde
GPU Name
Tahiti
Cape Verde XT
GPU Variant
Tahiti XTL (215-0821065)
GCN 1.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.5 billion
Transistors
4.313 billion
123 mm²
Die Size
352 mm²

Graphics Features

12 (11_1)
DirectX
12 (11_1)
4.6
OpenGL
4.6
1.2
OpenCL
1.2
1.2
Vulkan
1.2
-
-
-
5.1
Shader Model
5.1

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