Home GPU Comparison AMD Radeon HD 6490 vs AMD Radeon R7 260

AMD Radeon HD 6490 vs AMD Radeon R7 260

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6490 and 2GB VRAM Radeon R7 260 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6490 's Advantages
Lower TDP (39W vs 95W)
AMD Radeon R7 260 's Advantages
Released 2 years and 5 months late
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (96.00GB/s vs 16.00GB/s)
448 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 6490
0.352 TFLOPS
Radeon R7 260 +336%
1.536 TFLOPS
VS

Graphics Card

Jul 2011
Release Date
Dec 2013
Northern Islands
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
-
-
-
-
-
500 MHz
Memory Clock
1500 MHz

Memory

1024MB
Memory Size
2GB
DDR2
Memory Type
GDDR5
128bit
Memory Bus
128bit
16.00GB/s
Bandwidth
96.00GB/s

Render Config

4
Compute Units
12
-
-
-
320
Shading Units
768
16
TMUs
48
8
ROPs
16
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

4.400 GPixel/s
Pixel Rate
16.00 GPixel/s
8.800 GTexel/s
Texture Rate
48.00 GTexel/s
-
-
-
352.0 GFLOPS
FP32 (float)
1.536 TFLOPS
-
FP64 (double)
96.00 GFLOPS

Board Design

39W
TDP
95W
200 W
Suggested PSU
250 W
1x DVI 1x HDMI 1.3a 1x VGA
Outputs
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
None
Power Connectors
1x 6-pin

Graphics Processor

Redwood
GPU Name
Bonaire
Redwood LE
GPU Variant
Bonaire PRO
TeraScale 2
Architecture
GCN 2.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
0.627 billion
Transistors
2.08 billion
104 mm²
Die Size
160 mm²

Graphics Features

11.2 (11_0)
DirectX
12 (12_0)
4.4
OpenGL
4.6
1.2
OpenCL
2.0
N/A
Vulkan
1.2
-
-
-
5.0
Shader Model
6.3

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